University of Wollongong Research Online University of Wollongong Thesis Collection University of Wollongong Thesis Collections 2002 Rigidity and mental health: challenging the view that rigid thinking leads to poor mental health Terri Said University of Wollongong Recommended Citation Said, Terri, Rigidity and mental health: challenging the view that rigid thinking leads to poor mental health, Doctor of Psycology(Clinical) thesis, Department of Psychology, University of Wollongong, 2002. http://ro.uow.edu.au/theses/2144 Research Online is the open access institutional repository for the University of Wollongong. For further information contact the UOW Library: [email protected] RIGIDITY AND MENTAL HEALTH : CHALLENGING THE VIEW THAT RIGID THINKING LEADS TO POOR MENTAL HEALTH A thesis submitted in partial fulfilment of the requirement for the award of the degree DOCTOR OF PSYCHOLOGY (CLINICAL PSYCHOLOGY) From THE UNIVERSITY OF WOLLONGONG By TERRI SAID, BA (Hons) (Psych), M A (Psych) Department of Psychology 2002 1 DECLARATION I, Terri Said declare that this thesis, submitted in partial fulfilment of the requi for the award of Doctor of Psychology (Clinical Psychology), in the department of Psychology, University of Wollongong, is wholly my own work unless otherwise referenced or acknowledged. The document has not been submitted for qualifications a any other academic institution. Signed: Date 11 ACKNOWLEDGEMENTS I would like to extend my sincere thanks to my supervisor Dr Joseph Ciarrochi fo the patience, time and effort he spent assisting me in formulating, conducting an writing up my research. I would also like to thank Greg Scott for the significant role he played in the of the data. Thankyou for all your patience ! I owe a huge debt of gratitude to my parents for valuing my education, their inv support and faith in me has allowed me to go on and achieve so much. I also wish acknowledge my sister and brother and extended family for all the encouragement have received over the years. I would like to especially thank Dal for her valuab support during the write up of my thesis. My deepest thanks to Al - for as long as I have been studying, from high school to this degree you have always been a vital source of comfort, practical assistan strength. You have earned this degree as much as I have !! To my dear friends Tra Avril, A.J. and Sarah I am extremely grateful for the constant moral support and you guys have always had in me, this has truly made all the difference. Finally with much love to my grandmothers who have inspired me to pass on to oth their most precious gift of love, warmth and guidance. HI ABSTRACT A substantial amount of research has suggested that cognitive rigidity is associa poor mental health (e.g., Dieserud, Roysamb, Ekeberg, & Kraft, 2001; Dugas, Gagnon Ladouceur, & Freeston, 1998; Haaga, Fine, Terrill, Stewart, & Beck, 1995; Nezu, Nez & Perri, 1989). We hypothesized that some types of rigidity may not be associated poor mental health. The Personal Need for Structure scale (PNS; Thompson, Naccarat & Parker, 1989) was used to assess two types of rigidity, namely, the Desire for Structure (DS) and Response to Lack of Structure (RLS). We hypothesized that RLS but not DS would be related to poor mental health outcomes. Studies 1 (n = 302) an (n = 351) revealed that those with a personal tendency to express negative reacti when confronted with a lack of structure were consistently shown to experience po mental health. These outcomes included greater depression (assessed in studies 1 hopelessness (assessed in studies 1 & 2), suicide ideation (assessed in studies 1 anxiety (only assessed in study 2) and stress (only assessed in study 2). In cont these findings, those who had a tendency to desire structure were consistently sho not to experience poor mental health. The second study extended the first study b expanding the range of mental health variables assessed to include measures of an stress and life satisfaction. Also tested in both studies was the possible intera between stressful life events and RLS and DS. Support was found for an interactio between stressful life events and RLS across both studies. These findings indicat those who were highly rigid tended to experience greater increases in poor mental health in response to stressful life events. Some support was found for the expect that DS would not interact with stressful life events. However, since this finding not replicated across both studies, it was treated with caution. The results of th research not only replicate but extend previous research by demonstrating that th IV in fact two types of rigidity which are qualitatively different in terms of their implications for mental health. TABLE OF CONTENTS DECLARATION i ACKNOWLEDGEMENTS ABSTRACT ii iii T A B L E OF C O N T E N T S v T A B L E O F FIGURES xi T A B L E OF TABLES xiii INTRODUCTION 1 Aims of the present research 2 Organization of this thesis 3 CHAPTER 1 A n introduction to mental health and cognitive rigidity 6 1.1 The mental health crisis 7 1.2 Theoretical framework 10 1.2.1 The direct relationship betweenrigidityand mental health 10 1.2.2 14 Rigid people and stressful life events 1.3 Cognitive rigidity defined 15 1.4 Introduction to the review of cognitive rigidity measures 17 1.5 Summary 18 vi CHAPTER 2 Cognitive rigidity as measured by maximum performance tests 2.1 Measures of cognitive rigidity based on m a x i m u m Performance 2.2 20 21 The research: Social problem solving, suicide, depression and hopelessness 23 2.3 Models integrating stress, rigidity and mental health 24 2.4 26 Summary CHAPTER 3 Cognitive rigidity as self-reported tendency 28 3.1 Individual differences in the desire for simple structure 29 3.2 Comparison between P N S and other self-report measures of rigidity 3.3 Rigidity as measured as a self-reported tendency and mental health 3.4 3.5 32 35 The possibility for a positive relationship between desire for structure and mental health 38 Summary 41 vii CHAPTER 4 Personal need for structure 43 4.1 An introduction to the concept of need-for-structure 44 4.2 The phenomenology of Personal Need For Structure - PNS 47 4.3 A psychological theory of epistemology 47 4.4 Implications of PNS for cognitive functioning 49 4.5 PNS and mental health 55 4.6 RLS, DS and mental health 56 4.7 The relationship between PNS and stressful life events 57 4.8 Advantages of the PNS scale 59 4.9 Summary 60 The present research: Research hypotheses 61 Study 1 61 Study 2 63 CHAPTER FIVE Study 1 methodology, results and discussion 64 5.1 METHOD 65 5.1.1 Participants 65 5.1.2 Design and procedure 65 viii 5.1.3 Materials 66 5.2 RESULTS 68 5.2.1 Descriptives 68 5.2.2 Regression analysis between rigidity, stress and mental health measures 69 5.2.3 The interaction between rigidity and stressful life events 70 5.3 Study 1 discussion 75 CHAPTER SIX Study 2 methodology, results and discussion 78 6.1 METHOD 79 6.1.1 Participants 79 6.1.2 Design and procedure 79 6.1.3 Materials 80 6.2 RESULTS 82 6.2.1 Descriptives 82 6.2.2 Regression analysis between rigidity, stress and mental health measures 83 6.2.3 The interaction between rigidity and stressful life events 84 6.3 Study 2 discussion 91 IX CHAPTER 7 Overall discussion 7.1 Hypotheses one and two: D o R L S and D S have the same implications for mental health ? 7.2 93 96 Hypotheses three and four: Does cognitive rigidity moderate the relationship between stress and mental health ? 102 7.3 Other explanations for the pattern of findings 108 7.4 Limitations and future directions 109 7.5 Conclusion 116 REFERENCES 117 APPENDIX A INFORMATION SHEET 130 APPENDIX B CONSENT FORM 131 APPENDIX C BECK DEPRESSION INVENTORY II (1996) APPENDIX D PERSONAL NEED FOR STRUCTURE SCALE (1989) 132 133 APPENDIX E THE BECK HOPELESSNESS SCALE (1974) 134 APPENDIX F THE DEPRESSION, ANXIETY AND STRESS SCALE (1995) APPENDIX G 135 THE SATISFACTION WITH LIFE SCALE (1985) 136 X APPENDIX H SUICIDE IDEATION QUESTIONNAIRE (1987) 137 APPENDIX I HASSLES SCALE (1981) 138 APPENDIX J DEBRIEF HANDOUT 139 APPENDIX K R A W DATA STUDY 1 140 APPENDIX L R A W DATA STUDY 2 141 XI TABLE OF FIGURES Figure 1.1: Interaction between RLS and Stressful Life Events for Depression (Study 1) 72 Figure 1.2: Interaction between RLS and Stressful Life Events for Hopelessness (Study 1) 72 Figure 1.3: Interaction between RLS and Stressful Life Events for Suicidal Ideation (Study 1) 73 Figure 2.1: Interaction between DS and Stressful Life Events for Depression (Study 1) 74 Figure 2.2: Interaction between DS and Stressful Life Events for Hopelessness (Study 1) 74 Figure 2.3: Interaction between DS and Stressful Life Events for Suicidal Ideation (Study 1) 75 Figure 3.1: Interaction between RLS and Stressful Life Events for Depression (Study 2) 86 Figure 3.2: Interaction between RLS and Stressful Life Events for Hopelessness (Study 2) 86 Figure 3.3: Interaction between RLS and Stressful Life Events for Suicide Ideation (Study 2) 87 Figure 3.4: Interaction between RLS and Stressful Life Events for Anxiety (Study 2) 87 Figure 3.5: Interaction between RLS and Stressful life Events for Stress (Study 2) 88 xii Figure 4.1: Interaction between D S and Stressful Life Events for Depression (Study 2) 89 Figure 4.2: Interaction between DS and Stressful Life Events for Hopelessness (Study 2) 89 Figure 4.3: Interaction between DS and Stressful Life Events for Suicidal Ideation (Study 2) 90 Figure 4.4: Interaction between DS and Stressful Life Events for Anxiety (Study 2) 90 Figure 4.5: Interaction between DS and Stressful Life Events for Stress (Study 2) 91 xiii TABLE OF TABLES Table 1: Means (M) and Standard Deviations (SD) of major sample characteristic variables (Study 1) 68 Table 2: Intercorrelations between rigidity, stressful life events and mental health measures (Study 1) 69 Table 3: Regression analysis between rigidity, stressful life events and mental health measures (Study 1) 70 Table 4: Means (M) and Standard Deviations (SD) of major sample characteristic variables (Study 2) 82 Table 5: Intercorrelations between rigidity, stressful life events and mental health measures (Study 2) 83 Table 6: Regression analysis between rigidity, stressful life events and mental health (Study 2) 84 1 INTRODUCTION 2 Aims of the present research The present research has two primary aims. Firstly, we wish to show that not all ty of cognitive rigidity have negative implications for mental health. Cognitive rigid has usually been conceptualized in ways that present rigidity in a somewhat negativ light. The conceptualizations of Intolerance of Ambiguity (Eysenck, 1954; FrenkelBrunswick, 1949), Rigidity (Gough & Sanford, 1952), Uncertainty Orientation (Sorrentino & Hewitt, 1984; Sorrentino & Short, 1986), Dogmatism (Rokeach, 1960) and Authoritarianism (Adorno, Frenkel-Brunswick, Levinson, & Sanford, 1950) illustrate this point. More specifically, the scale measuring Authoritarianism (Ado al., 1950) relates rigidity to the concepts of power, toughness and authoritarian aggression. Previous research concerning rigidity as measured in terms of one's ability to be flexible has demonstrated that those who are highly inflexible/highly rigid tend to experience poor mental health outcomes, such as hopelessness, depression and suicid behavior (e.g., Bonner & Rich, 1987, 1988a; Cannon, 1999; Dieserud et al., 2001; Haaga et al., 1995; Nezu et al., 1989; Rickelman & Houfek, 1995; Schotte, Cools & Payvar, 1990). Previous research that measures rigidity in terms of a self-reported tendency has also found that those who are considered to be rigid tend to experienc negative mental health outcomes. For example, Dugas et al. (1998) found that Intolerance of Uncertainty has been identified as an important variable related to and generalized anxiety disorder. There is also some suggestion that high degrees o dogmatism are related to irrational beliefs and emotional disturbance (Ellis, 1986). 3 Past research has consistently shown that rigidity is mostly associated with poor me health outcomes. In contrast to these findings, we hypothesized that only some aspec of what can be called rigidity will be associated with poor mental health. In partic some people can be described as rigid because they desire structure and have a preference for order and routine in their lives (Thompson, Naccarato, Parker, & Moskowitz, 2001). We expect that these people will not experience poor mental health outcomes. In contrast, some people are described as rigid because they respond negatively when their structure is taken away (Neuberg & Newsom, 1993; Thompson et al, 2001). It is these people in particular who we expect will experience poor men health. We justify these predictions later in the theory and hypotheses section. Our second aim is to replicate and extend previous research (e.g., Neuberg & Newsom, 1993) concerning two aspects of cognitive rigidity, DS and RLS and their potentially divergent relationships with mental health. The present research extends previous research by including additional measures of mental health such as depression, hopelessness, suicidal ideation, stress and life satisfaction to the study of DS and The present research intends to expand our understanding of the potential usefulness the PNS scale beyond its established role in many psychological events (e.g., stereotyping; Schaller, Boyd, Yohannes, & O'Brien, 1995) to the implications that it may have for mental health. Organization of this thesis Chapter 1 orients the reader to research relating to the prevalence of psychological disorders in Australia. This is then followed by an introduction to the theoretical framework that is used to guide the formation our hypotheses. The chapter also 4 discusses the definitions relevant to the concept of cognitive rigidity and some of t issues associated with the measurement of cognitive rigidity. Cognitive rigidity can measured in two different ways. The first measures cognitive rigidity in terms of maximum ability tests and the second measures cognitive rigidity in terms of selfreport tendency tests. Chapter 2 looks at the measurement of cognitive rigidity in terms of ones maximum ability to be flexible. In doing so, this chapter discusses various scales, which are considered to be measures of cognitive rigidity. These types of scales are mostly concerned with an individuals ability to be flexible in the way that they solve probl This chapter reviews some of the research concerning the relationship between rigidit as measured by ones ability to be flexible and mental health. Chapter 3 discusses cognitive rigidity as conceptualized as a self reported tendency. discusses some of the most well known measures in this genre, with particular reference to a measure of cognitive rigidity - the PNS scale (Thompson et al., 1989). The results of our analysis suggest that the PNS scale is the ideal instrument in ter allowing us to satisfy the aims of the present research. The chapter then proceeds to discuss the relationship between self-report rigidity and mental health. The chapter introduces the idea that not all types of cognitive rigidity are expected to have neg implications for mental health. Chapter 4 continues to examine the concept of PNS. The chapter begins to discuss the need-for-structure concept and the role that it has in assisting individuals to under and navigate their environment. Also discussed is the theoretical basis for the PNS 5 construct and the implications that it may have for both cognitive functioning and mental health. The chapter discusses the two factors of the PNS scale and examines how they might relate to mental health. The research hypotheses are outlined at the en of this chapter. Chapter 5 explains the subjects, materials and procedures related to Study 1. The resu as well as a discussion of the results pertaining to Study 1 are then presented. Chapter 6 explains the subjects, materials and procedures related to Study 2. The resu as well as a discussion of the results pertaining to Study 2 are then presented. Chapter 7 presents the overall discussion of the results pertaining to each of the hypotheses relevant to both of the studies conducted. This chapter also discusses the implications and limitations arising from this research and highlights areas for futur research. 6 CHAPTER ONE AN INTRODUCTION TO MENTAL HEALTH AND COGNITIVE RIGIDITY 7 This chapter will introduce the reader to the concept of cognitive rigidity and h o w it might relate to mental health. A brief overview of Australia's current mental health status will be provided. The evidence based on this review suggests that poor mental health is a significant problem affecting a substantial proportion of the Australian worldwide community. It is argued that although there are many factors influencing ou mental health, the evidence thus far suggests that cognitive rigidity is thought to factor worthy of some investigation (Bonner & Rich, 1987, 1988a; Chang, 2002; Dieserud et al., 2001; Neuberg & Newsom, 1993; Rickelman & Houfek, 1995; Schotte et al., 1990). This chapter will also introduce Thompson et al. (1989) and Neuberg an Newsom's (1993) proposed definition of cognitive rigidity. This definition distinguishes between two types of rigidity, the poor/negative manner of response wh confronted with unpredictable/unstructured situations and the extent to which people desire structure in their lives. The hypotheses regarding the way in which these two aspects of rigidity might relate to mental health will be outlined. This will be fol by a discussion that offers some working definitions of the concept of cognitive rigidity. The chapter will then conclude with an introduction to the various ways in which cognitive rigidity can be measured. 1.1 The mental health crisis Almost 2.5 million Australians are estimated to have a mental disorder, with almost half of these people affected long term. It is also estimated that one in five Austr will be affected by a mental health problem at some stage in their lives (Henderson, Andrews, & Hall, 2000). Almost one out of five children and adolescents suffers from mental health problem or disorder within any six-month period (Zubrick, Silburn, Burton, & Blair, 2000). 8 Individuals with mental health problems and mental disorders are at markedly increased risk of suicide (Brown, Beck, Steer, & Grisham, 2000). Suicide is now a major cause of death among young people in Australia, second only to motor vehicle accidents as the single greatest cause of death. In NSW there are in excess of 700 suicide deaths and approximately 24,000 suicide attempts annually (Howe, 1999). A recent 20 year prospective study, found that suicide ideation was one of the unique factors for suicide (Brown et al., 2000). A survey at the University of Wollongong (Ciarrochi & Deane, 2000) indicated that 16% of students reported levels of suicide ideation akin to those with chronic psychiatric problems (Reynolds, 1987). Suicidal behavior can adversely effect the family, the individuals peers and the community (Kalafat, 1997). Depression is a factor commonly associated with suicide in all age groups. The majority of people who die from suicide meet criteria for depressive disorder in th weeks before death (Brown et al., 2000). After a previous suicide attempt, depressio the next highest risk factor for youth suicide (Silburn, Zubrick, & Garton, 1996). Depression is a significant problem worldwide with projections to the year 2020 indicating that depression will contribute the largest share to the burden of disea the developing world and the second largest worldwide (Murray & Lopez, 1996). A recent survey of Australia's mental health revealed that the prevalence rate of depression among the Australian population is about 5.8% (Henderson et al., 2000). Depression was more frequent in females (7.4%) than in males (4.2%). Compared to other age groups, those in the 18-24 year group evidenced the highest rate of depres disorders (11%). Depression has been significantly related to school difficulties, jo loss, physical illness, unsatisfactory relationships and impaired social judgements 9 (Beck, Steer, & Brown, 1996; Forgas, Johnson, & Ciarrochi, 1997; Tarris, Bok, & Calje, 1998). One of the major antecedents of depression is life stress, which inclu both daily hassles (Kanner, Coyne, Schaefer, & Lazarus, 1981) and major negative li events (Sarason, Johnson, & Siegal, 1978). Depressive disorders are associated with high rates of co-morbidity. A recent surve Australia's mental health revealed that of women with a depressive disorder 57% had least another mental disorder and 66% of men with a depressive disorder had at leas one other mental disorder (Henderson et al, 2000). Depressive disorders can co-occur with other disorders such as substance abuse, eating disorders and anxiety disorder Depression however is more likely to be associated with anxiety disorders more than any other disorder. Over the half the people with an affective or depressive disord have an anxiety disorder (Henderson, Jorm, Korten, Jacomb, Christensen, & Rodgers, 1998; McLennan, 1998). According to a recent survey of Australia's mental health, anxiety was the most common disorder affecting Australians (Henderson et al., 2000). It affected just under 1 in 10 adults, which comprises 1.3 million adults. Anxiety disorders were most prevalent in people aged 18-54. Women were 3 times more likely to suffer from an anxiety disorder than men. The personal and financial costs of mental health problems to local and worldwide communities is a significant problem. Mental disorders are estimated to be the four most expensive disease group, after digestive system diseases, circulatory disorder musculoskeletal problems (Murray & Lopez, 1996). The institutional and non- institutional cost of mental disorders in Australia has been estimated at $2.58 bil 1993-1994 alone. That year it constituted 8.3% of the total health system costs. 10 Intentional injuries cost a further $69 million and the cost for depression in that was $521 million (Murray & Lopez, 1996). Currently mental health problems are responsible for 11% of the disease burden worldwide. Predictions suggest that by 202 the disease burden of mental health conditions may increase to 15% (Murray & Lopez, 1996). The disablement data suggest that anxiety disorders account for 2.7 million d per month and depressive disorders 3.5 million days per month that people were unab to carry their usual activities such as work or home responsibilities (Henderson et 2000). The aforementioned statistics demonstrate that the burden of mental disorders the Australian and worldwide community is a serious matter. This is most particularl true in light of the fact that mental health problems are related to high levels of absenteeism, lost productivity, heavy burdens on careers and families, legal costs a lost quality and years of life (Henderson et al., 2000; Murray & Lopez, 1996). 1.2 Theoretical framework 1.2.1 The direct relationship between rigidity and mental health The modern world can be viewed as largely unstructured and unpredictable. Philosophers representative of ancient cultures such the Dalai Lama through to psychologist/theorists such as Albert Ellis, contend that our world is by nature unstructured and unpredictable. In fact, whether one looks at life from a Buddhist perspective or a Western perspective, "the fact remains that life is change ... all events, and phenomena are dynamic, changing every moment, nothing remains static" (Dalai Lama & Cutler, 1998, p. 163). This climate of change can be distressing for some individuals. However this does no always have to be the case. Buddhists, for example, meditate on the transience of li 11 and in doing so claim to overcome the distress associated with that transience. Followers of the Buddhist traditions, such as the Dalai Lama suggest that because today's world is characterized by sudden, unexpected change, the attempt to develop flexible mode of thinking can be crucial to survival, (Dalai Lama & Cutler, 1998). A supple mind can help us overcome "extreme thinking which leads to negative consequences" (Dalai Lama & Cutler, 1998, p. 198). Thus Buddhists argue that the ability to shift perspective can be one of the most powerful and effective tools we to help us cope with life's daily problems. Flexibility of mind allows us to reconci external changes going on around us and to assist in the maintenance of composure even in the most restless conditions, thereby nurturing the resilience of the human spirit. Within the normal population, some people respond poorly to a lack of structure. The individuals are usually labeled "rigid". However the reality is that life is always unstructured and it is always in a state of flux. Therefore it is highly likely that reality may be difficult for some people to deal with, and thus they may be subject feelings of disappointment or they may even feel overwhelmed by life. There has been a substantial amount of evidence to suggest that rigid or inflexible people experience poor mental health compared to those who are not so rigid (e.g., Bonner & Rich, 1987, 1988a, 1988b; Nezu et al., 1989). Indices of poor mental health such as depression, hopelessness and particularly suicidal ideation and behavior ha been commonly cited as being the likely result of a number of factors, with cognitiv rigidity being one of the more important ones (Bonner & Rich, 1987, 1988a; Dieserud, et al., 2001; Haaga et al, 1995; Nezu, 1985, 1987; Rickelman & Houfek, 1995; Schotte 3 0009 03290830 8 12 et al., 1990). There have also been numerous studies which have found a significant link between social problem solving deficits, a form of rigidity, and maladjustmen reviews, see D'Zurilla, 1986; Nezu et al., 1989). We wish to argue that the story is not so simple. Some aspects of cognitive rigidi lead to poor mental health (e.g., Bonner & Rich, 1987, 1988a; Dieserud et al., 2001 Haaga et al., 1995; Rickelman & Houfek, 1995; Schotte et al., 1990). However, we wish to argue that other aspects of rigidity may not have detrimental effects. As to earlier, an important distinction has been made in the field between those who structure and those who respond poorly to the lack of structure (Neuberg & Newsom, 1993). Thompson et al. (1989) formulated the PNS scale, which assesses individual differences in the extent to which people have a chronic need to have structure in lives. As mentioned earlier, this scale has two highly related yet conceptually dis sub-factors, DS and RLS. DS measures the extent to which people desire structure i their lives (e.g., "I find that a consistent routine enables me to enjoy life more" measures poor/negative manner of response when confronted with unpredictable/unstructured situations (e.g., "I hate to change my plans at the las minute") (Neuberg & Newsom, 1993). There is also preliminary evidence of correlations among these two factors with measures of the Big Five Inventory of th Omni Personality Survey (John, Donahue, & Kentle, 1991) and social anxiety measures that suggest that these factors are somewhat distinct in the manner posited (Neube Newsom, 1993). 13 We wish to argue that desiring structure in itself is not irrational and thus will n to poor mental health. We can strongly desire structure but not respond poorly when lose it. Indeed people who desire structure may well create worlds that are more predictable and pleasant. We propose that it is the conversion of desires into absolutistic demands or "musts" that is likely to result in emotional disturbance. Th view is supported by Rational Emotive Theory (RET; Ellis, cited in Dryden, 1991). According to Cognitive Behavioral Theory (CBT; Beck, 1976) and RET, rigid people have irrational or dysfunctional assumptions that may not be commensurate with the reality that they are facing. RET argues that if humans would stick to preferences o desires - "I would like this very much, but I don't have to have it" and not transmu into an absolute must, they would not have so much emotional trouble (Ellis, cited in Dryden, 1991). Hence according to RET desiring structure will not lead to emotional distress. The RET framework would assume that those who convert their desires for structure ("I prefer it when the rules in a situation are clear") into absolutistic ("The rules in a situation must always be clear"), are those who are more likely to experience emotional disturbance. These demands suggest that the person is not accepting reality. When their demands are contradicted by reality these individuals likely to respond with thoughts such as "I can't handle this situation, or this is aw Therefore the demands and the resulting thoughts are likely to lead these individual experience substantial distress (Ellis, cited in Dryden, 1991). The RET framework would assume that people high in RLS have unrealistic demands about reality. In ligh of the perspective offered by Ellis, it is highly possible that those who respond poo to a lack of structure may be those who do not just desire structure but those who d the presence of structure as a necessity or a must. 14 W e therefore predict that not all individual differences inrigiditywill have the same relationship with mental health. Specifically we hypothesize that the desire for stru will not be related to poor mental health. Rather it will be the poor response to a l structure that will relate to poor mental health. 1.2.2 Rigid people and stressful life events It is reasonable to consider that cognitively rigid people adopt less flexible ways o responding to and dealing with life stressors. Indeed there is ample evidence support the stress-diathesis models of suicidal behavior (Bonner & Rich, 1987, 1988a, 1988b; Dixion, Heppner, & Anderson, 1991; Dixion, Heppner, & Rudd, 1994; Priester & Clum, 1993; Schotte & Clum, 1982, 1987). Schotte and Clum's (1982, 1987) diathesisstress-hopelessness model of suicidal behavior is one example. According to their model, inflexible problem solving affects an individual's capacity to cope, thereby predisposing the individual to become suicidal under conditions of chronic stress. It the people who are considered to be highly rigid who have been shown to respond to stressful life events with poor coping. Stress diathesis models therefore predict an interaction between rigidity and stress. Therefore our next hypothesis is that highly rigid people would respond worse to stre than those lower in rigidity. That is, stress will be associated with greater increas poor mental health among those who are more rigid compared to those who are not as rigid. Earlier, the RET framework was used to argue that the RLS factor might represent a more dysfunctional form of rigidity than does the DS factor. Accordingly is hypothesized that those high in RLS will respond more poorly to stressful life eve 15 compared to those low in R L S . The final hypothesis is that D S will not interact with stressful life events. 1.3 Cognitive rigidity defined Cognitive rigidity can be conceptualized in several ways. For example, it can be viewe in dispositional or personality terms in that people may differ in the extent to which they tend to be flexible. Cognitive rigidity can also be conceptualized in terms of o skill or maximum ability to be flexible. Cognitive rigidity has been primarily defined as encompassing the cognitive distortio of dichotomous, or all-or-nothing thinking, and the inability to be flexible in terms generating or acting on alternative solutions (Weishaar, 1996). These elements of cognitive rigidity have been incorporated into more recent research on problem solving (Weishaar, 1996). Using the problem solving approach is one method of measuring cognitive rigidity, in that this approach assesses one's ability to be flexible. These measures aim to obtain an indication of one's optimal problem solving performance. The ability too effectively problem solve is dependent upon a number of factors. These factors include the ability to define and formulate the problem, to be able to generat alternative solutions, to be able to monitor and evaluate possible solutions (D'Zurill Chang, Nottingham, & Faccini, 1998), to be able to anticipate solution consequences (Schotte & Clum, 1987) and to abstain from the tendency to perseverate and resist the acquisition of new behavior patterns by holding onto previous and nonadaptive styles of performance (Ferrari & Mautz, 1997). These facets of the problem solving process have been applied to the study of interpersonal or impersonal problem solving ability. 16 A s mentioned earlier, cognitive rigidity can also be conceptualized in terms of a tendency rather than an ability. In this context, the term cognitive rigidity refers to cognitive style whereby individuals display significant tendencies towards being inflexible and/or intolerant toward ambiguity. Thus these individuals may be able to be flexible yet they do not tend to be flexible. Such individuals are also likely to show a definite preference for order and predictability, and hence may be dispositionally motivated to cognitively structure their worlds in unambiguous ways. There are a number of conceptualizations relevant to the definition of cognitive rigidi as a self-reported tendency. For example, one could conceptualize cognitive rigidity in terms of individual differences in the amount of effortful, elaborative thought people desire (Cacioppo & Petty, 1982), in terms of people's preferences for having control over their lives (Burger, 1992) and in terms of individual differences in one's preference for cognitive simplicity and structure (Thompson et al, 1989). Rigidity can also be conceptualized as individual differences in people's need for closure or people's desire for an answer on a given topic compared to confusion and ambiguity (Kruglanski, 1989). These concepts represent different aspects of cognitive rigidity. However, they also all possess, as a component of their conceptualizations, the notion of a preference for cognitive simplicity and structure. A primary focus of this paper concerns a specific aspect of cognitive rigidity - the nee for structure. A need for structure is thought to occur when an individual desires, or i compelled to impose structure, in order to dispel uncertainty, doubt and ambiguity. The imposition of structure is associated with cognitive consequences such as generating fewer hypotheses (Freund, Kruglanski, & Schpitzajzen, 1985). There is evidence 17 suggesting that those with a high need for simple structure are not those w h o are constrained to simplify and structure their world due to a lack of intellectual capabilities, but rather they do so because they prefer to (Neuberg & Newsom, 1993). Thus this motive to structure one's world is argued to represent a chronic motive no limited capacity. The PNS scale which measures the need for structure is argued to be representative o an aspect of cognitive rigidity. This is because it is highly correlated with two we known measures of rigidity. These measures are the Rigidity scale (r=.60) (Gough and Sanford, 1952) and the Rigidity About Personal Habits scale (r=.64) (RAPH; Meresko, Rubin, Shantz, & Morrow, 1954). Thompson et al. (2001) argue that magnitude of the PNS - RAPH correlation is high enough to indicate a degree of redundancy between the two measures, the PNS scale assuming phenomenological precedence. 1.4 Introduction to the review of cognitive rigidity measures There are a number of instruments with which one could use to measure cognitive rigidity. These measurements capture different, but equally important aspects of cognitive rigidity. Therefore it is essential to make a distinction between them. As the aforementioned distinctions regarding various conceptualizations of cognitive rigidity, these measures can be classified into one of two groups - rigidity as meas by maximum ability tests and self-report measures that capture a person's tendency towards being rigid or a person's typical level of rigidity. Some measures of cognit rigidity focus on maximum /optimal functioning (e.g., the Means-Ends Problem Solving procedure; MEPS; Piatt, Spivack, & Bloom, 1975a), while others are a mixture of optimal and typical functioning. Self-report measures tend to fall into the latte 18 category (Ciarrochi, Chan, & Caputi, 2000). Measures that tap into m a x i m u m or optimal performance with regards to cognitive rigidity tend to be those which are concerned with problem solving ability. Optimal performance is often what a person is capable of at a particular moment in time. Respondents are instructed to complete the measure to the best of their ability. Self-report measures in contrast, tend to be more dependent upon self-evaluation as opposed to aptitude. The emphasis is more on the various ways in which people typically think and behave as opposed to what they are capable of. For example a selfreport measure called the PNS scale (Thompson et al., 1989) instructs respondents to "read each of the following statements and decide how much you agree with each according to your attitudes, beliefs and experiences". One of its items includes " I that a consistent routine enables me to enjoy life more". Self-report measures also t not to impose time limits upon the test taker. The distinction between maximum performance rigidity and self-report rigidity primarily deals with the difference between one's optimal ability to solve problems and one's motivation or desire to thin and behave in ways that are considered to be rigid. Therefore it is argued there is a difference between what one is capable of doing as opposed to what one typically chooses to do. 1.5 Summary Cognitive rigidity is a factor that has significant implications for mental health. E in the chapter it was mentioned that the present research wished to explore the ways i which cognitive rigidity as measured as a self-reported tendency relates to mental 19 health. The PNS scale is a self-report measure, which captures the tendency to think and behave in a rigid manner. This scale is valuable for the purposes of the present research because unlike other measures of rigidity, it can be broken down into two related yet conceptually distinct sub-scales, namely DS and RLS. In order to place the concept of cognitive rigidity as measured as a self reported tendency in context, Chapter 2 will present a review regarding some of the instruments used in assessing cognitive rigidity as measured by maximum performance as well as a brief review of the research concerning the relationship between performance rigidity and mental health. This chapter will be followed by chapter 3, which deals with rigidity as measured as a self-reported tendency and its relationship with mental health. These chapters are designed to highlight the position that the information gleaned from both of these approaches is valuable in suggesting that some types of rigidity are associat with poor mental health and the inability to effectively cope with stressful life even 20 CHAPTER TWO COGNITIVE RIGIDITY AS MEASURED BY MAXIMUM PERFORMANCE TESTS 21 This chapter will discuss the measures of cognitive rigidity that are typically used in problem solving/mental health research. The chapter will conclude by examining the relationship between rigidity as measured by maximum performance and mental health. 2.1 Measures of cognitive rigidity based on maximum performance The most common measures of cognitive rigidity that are based on performance have tended to concentrate on problem solving ability (Weishaar, 1996). A performance test directly assesses a person's ability to apply skills effectively to a particular prob solving task (D'Zurilla & Maydeu-Olivares, 1995). The person's performance is then judged or evaluated and this measure is viewed as an indication of the level of abili that particular area (e.g., Nezu & D'Zurilla, 1981a, 1981b). Thus, tests of problem solving ability aim to capture one's maximum performance in that area. There are two main types of measures of problem solving ability namely social/interpersonal problem solving measures and impersonal problem solving measures. The majority of the literature concerning the relationship between mental health and rigidity as measured by maximum performance tests tend to focus on poor problem solving skills. More specifically on social problem solving deficits as oppose to impersonal problem solving deficits (Weishaar, 1996). Of all the "performance" measures of cognitive rigidity that are suitable for use with adult populations, there are three instruments that have been the most commonly used in the research concerning social problem solving skills and mental health. These thre include the MEPS (Piatt et al., 1975a), the Inventory of Decisions, Evaluations and 22 Actions (IDEA; Goddard & McFall, 1992) and the Interpersonal Problem Solving Assessment Technique (IPSAT; Getter & Nowinski, 1981). We focus on the MEPS because it is one the most widely used measures of social problem solving ability in research involving mental health (D'Zurilla & MaydeuOlivares, 1995). In this procedure the respondent is presented with a series of 10 incomplete stories that have only a beginning and an ending. In the beginning of the story, the protagonist is faced with a specific problem, and at the end the problem i resolved. The respondent is asked to fill in the middle of the story that connects th beginning to the ending. The respondent therefore has to suggest a number of strateg or alternative solutions for overcoming the given problem situation. The response is analyzed, quantitatively scored and this measure is viewed as an indicator of the le of the respondent's problem solving ability or ability to be flexible. The MEPS is reported to have a test-retest reliability for 2.5 weeks of .59 and for 8 months a reliability of .43. Its level of internal consistency ranges from .8 to .84 (Piatt e 1975a). There are a number of impersonal problem solving measures that are utilized in research concerning impersonal problem solving and mental health. The Alternate Uses Test (AUT; Wilson, Christensen, Merrifield, & Guilford, 1975), Kelly's (1955) Role Construct Repertory Test and the Embedded Figures Test (EFT; Witkin, 1950) are some examples. 23 2.2 The research: Social problem solving, suicide, depression and hopelessness The study of cognitive rigidity/flexibility is considered to be of great significance to the role that it plays in each of the various psychological conditions such as depression, anxiety, hopelessness and suicidal behavior (Bonner & Rich, 1987, 1988a, 1988b; Beck, 1976; Dixion et al., 1991; Dixion et al., 1994; Nezu, 1985, 1986, 1987; Priester & Clum, 1993; Schotte & Clum, 1982, 1987). A substantial amount of the recent research assessing the relationships between cognitive rigidity and suicide, depression and hopelessness tends to measure cognitiv rigidity or inflexibility by the presence of problem solving deficits, particularly s or interpersonal problem solving deficits (Weishaar, 1996). This is because of the greater clinical significance that has been assigned to the role of interpersonal pro solving as opposed to impersonal problem solving to the study of suicidal ideation (e.g., Bonner and Rich, 1988a; Dixon et al., 1991; D'Zurilla et al., 1998; Priester & Clum, 1993), to the study of suicide and hopelessness (Schotte & Clum, 1982, 1987; Weishaar, 1996) and to the study of depression (D'Zurilla, 1986; Nezu, 1987). The significance of interpersonal problem solving deficits is clearly highlighted whe considering its role in research concerning depression. A popular perspective for examining depression and depressive symptoms has been via the problem solving framework. Within this framework depression and depressive symptoms are believed to be triggered though an interaction of stressful events and rigid problem solving (Nez 1986, 1987). The reciprocal relationship between ineffective social problem solving skills and depression is supported by the research indicating that depressed individu 24 have been shown to demonstrate poor performances on the M E P S . These individuals can be said to demonstrate cognitive rigidity as they were unable to generate a sufficient number of alternative solutions to the proposed problem situations (Marx, Williams, & Claridge, 1992; Schotte & Clum, 1982, 1987). The importance of interpersonal problem solving deficits is further emphasized when considering that once suicidal individuals engage in interpersonal problem solving, the same deficits accompanying impersonal problem solving not only emerge, but are magnified (McLeavey, Daly, Murray, O'Riodan, & Taylor, 1987). 2.3 Models integrating stress, rigidity and mental health The following discussion involving life stressors, rigidity and mental health is desig to highlight the point that those who are rigid and who are exposed to life stressors a more likely to evidence greater increases in negative mental health states. Models that integrate stress and cognitive rigidity with negative mental health outcomes such as hopelessness, suicide and depression are based primarily in a stress-diathesis format. This format imposes life stressors upon on a set of cognitive risk factors (suicidal ideation, depression and hopelessness) that result in suicidal behavior. The risk fact pose a vulnerability to suicide that becomes evident as a result of adverse conditions such as life stressors. More recent models such as Dieserud et al. (2001) however support the concept of a cognitive path to suicide attempt, separate from the path mediated through depression/hopelessness/ideation. Schotte and Clum's (1982) diathesis-stress-hopelessness model of suicidal behavior argues that inflexible problem solving may predispose individuals to become hopeless and suicidal under conditions of chronic stress (Schotte et al., 1990). They proposed 25 that the combination of life stress and poor social problem solving ability affects an individuals ability to develop effective solutions for adaptive coping, which in turn results in hopelessness. This hopelessness is then postulated to put individuals at increased risk for suicidal behavior. Schotte and Clum's theory therefore predicts that deficit in problem solving abilities, as measured by the MEPS, will lead to suicidal behavior primarily through its impact on hopelessness. Several studies support various aspects of Schotte and Clum's model (Bonner & Rich, 1987, 1988a, 1988b; Dixion et al., 1991; Dixion et al., 1994; Priester & Clum, 1993) by primarily providing support for direct associations between two or more variables within the model (Dixion et al., 1994). More recent research has expanded previous research on stress-vulnerability models of depression and problem solving deficits as it relates to suicide attempt (Dieserud et a 2001). These findings indicated a two-path model of suicide attempt in a clinical population. The first path began with low self-esteem, loneliness and relationship difficulties, which progressed to depression, and was further mediated by hopelessness and suicidal ideation which lead to suicide attempt. The second path developed from low self-esteem and a low sense of self-efficacy and advanced to suicide attempt, mediated by a negative appraisal of one's own problem solving capacity and inflexible/poor interpersonal problem solving skills. Dieserud et al. (2001) argue that the results of this study may indicate that the ability to exercise flexible interperso problem solving might act as a protective mechanism for suicidality regardless of the levels of depression and hopelessness. Due to the fact that there has been little empirical data linking social problem solving deficits to suicidal behavior except as 26 they relate to hopelessness (Weishaar & Beck, 1990), the research by Dieserud et al. (2001) is of importance in providing empirical support to several aspects of social problem solving deficits that may be relevant to the construction of a cognitive profi of individuals who are likely to engage in suicidal behavior (Ellis & Ratliff, 1986). Measures of maximum performance possess both strengths and weaknesses. One can argue that optimal performance measures tend to be objective and therefore not subjected to bias. Another strength is that maximal performance tests are often of demonstrated reliability and validity (Dennis, Sternberg, & Beatty, 2000). For example it can be argued that optimal measures possess more stringent guidelines with which to score and interpret test results. Test performance under maximal conditions may also better simulate performance during challenging real-world events than test performance under typical conditions. These tests can also have some problems. The most significant problem is that they often are stressful and anxiety provoking. Due to thi effect some people may not able to present their optimal level of performance. Dennis et al. (2000) argues that some of these assessments also require significant lengths o time to administer. Finally, optimal performance measures do not really capture one's typical response style as do self-report measures. Therefore it is argued that self-re measures may better capture how people behave and think the majority of the time. 2.4 Summary The evidence presented suggested that cognitive rigidity as measured by optimal performance tests tends to have negative implications for one's mental health. Those who are highly rigid or inflexible were shown to experience poor mental health (Bonner & Rich, 1988a; Dixion et al., 1993; Marx et al., 1992; Nezu, 1987; Schotte et 27 al., 1990). The experience of stressful life events appeared to exacerbate the mental health of those who were considered to be highly rigid (Dieserud et al., 2001; Schott al, 1990; Schotte & Clum, 1982,1987; Yang & Clum, 1994). Although measures of maximum performance were shown to possess both strengths and weaknesses, the fact remains that their aim is to provide a specific type of information. This information chiefly pertains to one's ability to be flexible in the manner in which they solve problems. The present research however is concerned with another type of cognitive rigidity, a type which provides information which focuses upon individual differences in the extent to which people are chronically motivated t simply structure their worlds. The emphasis is therefore placed upon ones choice or tendency to behave and think in a rigid manner. Measures of cognitive rigidity in ter of maximum performance do not meaningfully address these interests, in that no measure of maximum performance allows one to assess two important motivational concepts relevant to the study of cognitive rigidity, which are central to this paper namely Desire for Structure and Response to Lack of Structure. 28 CHAPTER THREE COGNITIVE RTGrDITV AS A SELF-REPORTI. TENDENCY 29 Measures of cognitiverigidityas a self-reported tendency have been widely used in psychological research. Some examples include conceptualizations such as Intolerance of Ambiguity (Eysenck, 1954; Frenkel-Brunswick, 1949), Rigidity (Gough & Sanford, 1952), Uncertainty Orientation (Sorrentino & Hewitt, 1984; Sorrentino & Short, 1986), Dogmatism (Rokeach, 1960) and Authoritarianism (Adorno et al., 1950). These theoretical perspectives have made valuable contributions towards our understanding of human cognition, motivation and personality. This chapter will argue that despite the usefulness of the aforementioned measures in psychological research, they are not well suited to address the primary aims of the present research. The PNS scale is a self- reported tendency measure of cognitive rigidity that is considered to be more suitable for the purposes of the present research. This chapter will begin to present the ratio behind this selection. Finally, this chapter will conclude with a discussion regarding relationship between cognitive rigidity as a self-reported tendency and mental health. 3.1 Individual differences in the desire for simple structure The PNS scale (Thompson et al., 1989) is one measure in particular that has promise in its ability to provide a more complete understanding of cognitive rigidity. This self- report measure is distinct from the aforementioned process measures in that it does no assess matters relating to social problem solving. The PNS scale can be considered as an individual difference measure capturing a particular aspect of cognitive rigidity previously defined in the introduction - the need for structure. This scale and its tw sub-factors, DS and RLS have been shown to possess internal (Cronbach alpha =.77) and test-retest (over 12 weeks whole scale r= .76, factor 1 r=.84 and factor 2 r=.79) reliability and more than adequate convergent and discriminant validity (Leone, Wallace, & Modglin, 1999; Neuberg, Judice, West, & Thompson, 1997; Neuberg and 30 Newsom, 1993; Thompson et al., 2001). Evidence for the convergent and discriminant validity of the PNS scale will be elaborated upon and is presented below in section 3 The data on the PNS scale indicates that individuals do in fact differ in the extent which they are chronically motivated to simply structure their worlds (Moskowitz, 1993; Neuberg and Newsom, 1993; Thompson et al, 2001). The PNS scale measures the need-for-structure construct. This scale is considered to a valid measure of cognitive rigidity due to the fact that it correlates very highly other very well known measures of cognitive rigidity. For example, as mentioned earlier in chapter 1, the PNS scale evidenced correlations of (.60) with the Rigidity scale (Gough and Sanford, 1952) and (.64) with the RAPH scale (Meresko et al., 1954). A major advantage of the PNS scale is that unlike other scales which measure cognitiv rigidity as a self-reported tendency, the PNS can be broken down into two related yet conceptually independent sub-scales. As briefly alluded to earlier in chapter 1, these two sub-scales represent two distinct types of rigidity, DS and RLS, and are signific in that we can make different predictions from each of them (Neuberg & Newsom, 1993). Neuberg and Newsom (1993) and Thompson et al. (2001) present evidence that the 11-item scale captures two related but conceptually independent factors. One sub- scale measures the extent to which people desire to establish structure in their lives example "I enjoy having a clear and structured mode of life". The other sub-scale measures the manner in which people respond to a lack of structure, for example "It upsets me to go into a situation without knowing what to expect from it". Confirmator factor analysis tested the proposed two-factor model against a one-factor alternative Results indicated that the two-factor model better accounted for the subject's data t 31 the one-factor model (Neuberg & N e w s o m , 1993; Thompson et al., 2001). The two factors correlated fairly highly (inter-factor correlation's ranged from .54 to .75). recently Hess (2001) provided evidence supporting the assertion that the two-factor model structure of the PNS scale provides a reasonable description of the data across number of age groups (21-85 years). Thus, the PNS scale and its two factors are valid for use with university undergraduates (Neuberg & Newsom, 1993) as well as older populations. The individual difference notion of desire for simple structure can be seen as similar previous attempts to address personality influences in social thought processes. Authoritarianism (Adorno et al., 1950), Dogmatism (Rokeach, 1960), Intolerance of Ambiguity (Eysenck, 1954), Uncertainty Orientation (Sorrentino & Hewitt, 1984; Sorrentino & Short, 1986), The Need For Closure Scale (NFCS; Webster & Kruglanski, 1994) and the Rigidity scale (Gough & Stanford, 1952) all represent different aspects of cognitive rigidity. They also all possess as a component of their conceptualizations the notion of a preference for simple cognitive structures. It is argued that although all these personality constructs share some similarities, they ar importantly divergent from the PNS scale. Most significantly we now argue that the PNS scale is far better suited to reliably and directly operationalize the desire for simple structure construct. Most importantly, due to the fact that the PNS scale operationalizes two conceptually distinct yet highly correlated aspects of cognitive rigidity, DS and RLS, we argue that it is the scale that is best suited for our purpos that it allows us to test our hypotheses that not all types of rigidity have the same relationships with mental health. 32 3.2 Comparison between P N S and other self-report measures of rigidity We now return to the previously raised issue of discriminant validity. As mentioned earlier, there are some similarities between the PNS and other individual difference measures of rigidity. For example, the Authoritarian syndrome has implied rigidity in both cognitive function and in the acceptance of social hierarchies (Adorno et al., 1950). Dogmatism is concerned with openness and closedness of belief systems (Rokeach, 1960). Intolerance of Ambiguity was theorized as a construct related to one's resistance to a lack of conceptual clarity (Eysenck, 1954). Uncertainty Orientation addresses the ways in which people attempt to seek cognitive clarity (Sorrentino and Short, 1986). The Rigidity scale (Gough & Sanford, 1952) reflects the flexibility of thought and behavior and the NFCS (Webster & Kruglanski, 1994) reflects the desire for any answer on a given topic compared to confusion and ambiguity. Another related scale includes the Need for Cognition Scale (NCS; Cacioppo & Petty, 1982), which measures chronic preferences of people to engage in effortful, elaborative thought. The issue as to whether alternative conceptualizations reliably capture the desire for simple structure was explored by Neuberg and Newsom (1993). Confirmatory factor analyses and average inter-item correlations indicate that the Authoritarianism, Dogmatism, Intolerance of Ambiguity and Uncertainty Orientation measures all seem to assess multiple constructs, as single factors models provided very poor fits to the data and average inter-item correlations were quite low. Conceptually these alternativ are characterized by other unrelated constructs as well as their attention to simple cognitive structuring. Neuberg and Newsom (1993) argue that Authoritarianism for 33 example also assesses conventionalism, power and toughness, authoritarian aggression and submission, all of which appear to have little overlap with PNS. Dogmatism refers primarily to belief systems and their openness and closedness, not cognitive structure or their simplicity. Intolerance of Ambiguity relates to ones resistance to lack of conceptual clarity independently of the need for conceptual simplicity. It is argued t the inclusion of other constructs within these scales vastly limits their utility as a straightforward operationalization the desire for simple structure construct. Moreover, as operationalized, these alternative constructs (i.e., Authoritarianism, Dogmatism, & Intolerance of Ambiguity) are only somewhat correlated with the PNS scale (Neuberg & Newsom, 1993). The magnitude of the correlations ranges from low to moderate. In fact Neuberg and Newsom (1993) found that only one item from each of the Authoritarianism, Dogmatism and Intolerance of Ambiguity scales correlated above .30 with the PNS scale or either of its sub-factors, and none of these three ite did so consistently across scale administrations. Although the desire for simple structure may be relevant to these constructs, clearly the PNS is not redundant with these alternative operationalizations. The PNS scale strongly correlates with another measure of rigidity, the Rigidity scale (Gough & Stanford, 1952). However, it does so on the basis of only a small set of its items (Neuberg & Newsom, 1993). It therefore seems to be the case that a sub- component of the Rigidity scale begins to capture the desire for simple structure, but with weak reliability. The Rigidity Scale measures the flexibility of thought and behavior. However, in its original form it consists of multiple factors and is argued appear unreliable and nonunitary (Neuberg & Newsom, 1993). The PNS demonstrated 34 negative, weak correlations with the N C S (Cacioppo & Petty, 1982) suggesting that these two scales may be orthogonal constructs. This remained the case when Neuberg and Newsom (1993) broke the NCS into its three sub-components - cognitive persistence, cognitive confidence and cognitive complexity. Webster and Kruglanski (1994) presented the NFCS, which is another instrument that has as part of its conceptualization the desire for simple structure. In contrast to other self-report measures the NFCS was according to Kruglanski, Atash, DeGrada, Mannetti, and Webster (1997, p. 1005) "designed to operationalize the very same construct" as the PNS scale. The NFCS reflects the desire for any answer on a given topic compared to confusion and ambiguity. The NFCS is presented as a unidimentional instrument possessing strong discriminant and predictive validity (Webster & Kruglanski, 1994). However, the NFCS fails to exhibit discriminant validity and it fails as a unidimentional instrument (Neuberg et 1997; Thompson et al., 2001). Counter to the claim of unidimensionality, the NFCS is multidimensional instrument likely composed of at least two orthogonal factors, the desire for non-specific closure and the desire for specific closure (Neuberg et al., Thompson et al., 2001). As a consequence, interpretations of research in which the scale is used as if it were unidimentional obscures conceptual clarity and renders da interpretation problematic. The NFCS fails to exhibit discriminant validity relative to the preexisting instrumen most conceptually akin to it (Neuberg et al., 1997). The evidence has also shown that compared to the NFCS, the PNS scale more adequately satisfies many basic criteria of 35 good measurement (Neuberg et al., 1997; Thompson et al., 2001). For example, Neuberg et al. (1997, p. 1408) argues that the PNS scale demonstrates internal consistency, a clearer dimensional structure, and "considerably greater evidence of validity than the NFCS facets of Preference for Order and Preference for Predictability." When used as a unidimentional instrument, it is highly redundant with the preexisting PNS scale. In fact the strongest items of the NFCS are borrowed from the PNS scale. The two scales consistently show very high correlations (median r=. 79) When used as a multidimensional instrument, the first two of its five facets are indiscriminable from the two factors of the PNS scale, and a third facet is indiscriminable from the Thompson et al. (2001) preexisting Personal Fear of Invalidi Scale. Based on the analysis of Neuberg et al. (1997), it appears that the NFCS fails add anything beyond what is captured by extant instruments. The case for PNS's discriminant validity is further strengthened when one considers t breadth of demonstrated PNS influences. A discussion of the influences of the PNS scale and the advantages of using this scale for the purposes of the present research be presented in chapter 4. 3.3 Rigidity as measured as a self-reported tendency and mental health The previously discussed literature in chapter 2 suggests that those who exhibit problem solving skill deficits tend to suffer negative mental health outcomes such as depression and suicidal behavior (e.g., Dieserud et al., 2001). It was also shown that these effects are further exacerbated when individuals are exposed to stress (e.g., Schotte et al., 1990). We will now turn to the research concerning rigidity as measure 36 as a self-reported tendency and its relationship with mental health. We argue that the PNS scale is best suited for the purposes for the present research, however some of th other self-report measures of rigidity have also yielded findings that are relevant to hypotheses. The following is a review of some of this research. Intolerance of Uncertainty is a measure of self-report rigidity that has been identifi an important variable related to worry and Generalized Anxiety Disorder (GAD; Dugas et al., 1998). Those who evidence high scores on the measure of Intolerance of Uncertainty tend to possess the tendency to react negatively to an uncertain event or situation, independent of its probability of occurrence and of its associated consequence. In other words for the same uncertain situation, two people with the same perceptions of both its probability of occurrence and consequences may differ in their threshold of tolerance towards the situation. Those who are intolerant of uncertainty would deem the situation to be disturbing or even unacceptable (Ladouceur, Gosselin, & Dugas, 2000). This resistance and negative response to a lack of certainty or clarity is argued to be reflective of cognitive rigidity. This is due to fact that those who r such a manner are displaying a definite lack of flexibility in their behavioral respon to a lack of clarity or certainty. Intolerance of Uncertainty has been shown to be rel to trait worry in non-clinical subjects, even when anxiety and depression levels are partialed out (Dugas, Gosselin, & Ladouceur, 2001; Freeston, Rheaume, Letarte, Dugas, & Ladouceur, 1994). GAD patients as opposed to patients suffering from other anxiety disorders, and moderate worriers show greater levels of intolerance of uncertainty (Ladouceur, Freeston, Dugas, Rheaume, Gognon, Thibodeau, Boisvert, Provencher, & Blais, 1995, cited in Dugas, Freeston, & Ladouceur, 1997). 37 Albert Ellis has commented upon a related aspect of cognitive rigidity- dogmatism. Those who are thought to be dogmatic as measured by the Dogmatism scale (Rokeach, 1960) tend to be rigid in that their belief systems are not flexible, as they are conci to possess closed belief systems. There is some suggestion that a high degree of dogmatism is related to irrational beliefs and emotional disturbance (Ellis, 1986). Ther is also some evidence suggesting that increasing dogmatism carries with it increasing feelings of guilt and hostility in both males and females and increasing aggression in males (Heyman, 1977). The increase in hostility as dogmatism increases reflects the increasing disaffection and defensiveness of the more dogmatic individual. Heyman (1977) found that disaffected feelings and actions whether they be dogmatic, hostile or aggressive, are accompanied by increasing feelings of guilt. This suggests that these disaffected patterns include anger and disappointment turned inward as well as outward. Intolerance of Ambiguity (Eysenk, 1954; Frenkel-Brunswick, 1949) is another aspect of cognitive rigidity that has been shown to be related to poor mental health. Ambiguity is very similar too the concept of intolerance of uncertainty in that it refers to the of clear meaning associated with various life experiences. The person with low tolerance of ambiguity experiences stress reacts prematurely and avoids ambiguous stimuli. A person with a high tolerance for ambiguity perceives ambiguous stimuli as desirable, challenging and interesting (Furnham & Ribchester, 1995). Those who are highly intolerant of ambiguity are said to evidence the cognitive distortion of dichotomous or all-or-nothing thinking (Bochner, 1965). 38 Yapko (2001) argues that intolerance of ambiguity may be one of the most powerful and pervasive risk factors for depression. Consistent with this position is the researc Anderson (1990). Anderson (1990) argues that those who are intolerant of ambiguity are thought to be motivated to rapidly resolve uncertainties that are sparked by rumination about negative life events. It is at this point that those who are intoleran ambiguity find themselves unable to escape the negative implications of this rumination. Therefore to attain resolution they adopt negative expectancies that they tend to hold with certainty. That is, they ultimately come to experience depressive predictive certainty and depression. These results were consistent with later research that found ambiguity intolerance to serve as a vulnerability factor for both the certai of future suffering and for depression (Anderson & Schwartz, 1992). 3.4 The possibility for a positive relationship between desire for structure and mental health Although admittedly speculative, this section aims to introduce the idea that structuri one's world can lead to positive outcomes. Religion may provide one example of how this can be possible. Those who are religious tend to exist in a world with more structures in place compared to those who are not religious. For example religion often provides people with guidelines on how to think and behave and it provides people with explanations for why things are the way they are. Thus religion can provide people with a lot of structure. Evidence suggests that religious people are more structuring a rigid (Saroglou, in press). There is also evidence that suggests that religious people a happier and report better mental health (Thoresen, Harris, & Oman, 2001, cited in Plante & Sherman, 2001). The desire for structure might influence people to gravitate towards a structured existence. It is possible that amongst other factors, that such 39 structuring m a y lead these people to be happier. This speculative suggestion is raised in order to consider the possibility that desiring structure might have some benefits. The empirical literature suggests that when studies are based on measures of general religiosity (e.g., attitude to religion, intrinsic religiosity, religious affiliation an religious behavior such as prayer and church attendance) the association between religiosity and various aspects of rigidity is mostly positive (Saroglou, in press). For example, this is the case with dogmatism (Francis, 2001), low openness to experience (Saroglou, 2002) and values emphasizing the need for reduction of uncertainty and low importance attributed to the values emphasizing openness to change (Schwartz & Huismans, 1995). Religiosity is therefore argued to be more predictive of high need for order, structure and closure. This notion is supported by the finding that religiosity (e.g., attitude to religion, intrinsic religiosity, religious affiliation and religious such as prayer and church attendance) is positively related to the need for closure as measured by the NCFS by Kruglanski and Webster referred to earlier (Saroglou, in press). That is, religiosity is associated with a high desire for definite order and structure in one's life and a strong dislike of chaos and disorder. Given that the NFCS is argued to be redundant with the PNS scale (Neuberg et al., 1997) one could say that religious people tend to exhibit a high need for structure or a high desire for simple structure in their lives. A number of surveys and studies across Europe and North America have revealed that religious people more often than non-religious people report better mental health, feelings of happiness and greater satisfaction with life. For example, Thoresen, Harris, and Oman, (2001, cited in Plante & Sherman, 2001) review and present scientific 40 evidence supporting the argument that religious/spiritual factors positively influence physical and mental health. Fallot (2001, cited in Lamb, 2001) also reviewed the research and concludes that in the main, religion is often related to more positive mental health outcomes such as happiness and peacefulness. Finally Koenig (2001) reviewed a century of research examining religions relationship to mental health and other behaviors affecting mental and social functioning. Results suggested that most mainline religions with well-established traditions and accountable leadership tend to promote positive (i.e., well-being and life satisfaction) rather than negative human experiences. Recent research indicates that people with open and mature religiosity seem to be high in emotional stability (Saroglou, 2002). It was also found that religiosity was associated with low neuroticism. Weerasinghe and Tepperman (1994) also found that religion was associated with greater happiness and was a key factor in suicide prevention. There is also evidence suggesting that the link between faith and well-being remains even after statistically extracting the effect of general social acti and connectedness associated with religiosity (Ellison, 1991). One might ask why it is that religious individuals tend to experience positive mental heath. It is speculated th amongst other variables, that the desire for structure evident amongst religious individuals might contribute somewhat to their mental health. In addition to our speculations about religion, there is some evidence to suggest that rigidity may sometimes be beneficial. Budd (1993) found that those with a distinct cognitive structure have better self-reported coping skills. Evans, Thompson, Browne, and Barr (1993) found that in adults with acute leukemia in remission the presence of cognitive structuring was related to psychological well-being. Cognitive structure in this study was measured in terms of being intolerant of ambiguity and as being one 41 prone to seeking clarity. Finally, Bar-Tal (1994) found that when high monitors have high ability to achieve cognitive structure they suffer less psychological distress. Cognitive structure in these studies refers to an individuals preference for structure, akin to the concept of desire for structure mentioned earlier. There is also some evidence indicating that authoritarianism which is considered to represent an example of rigidity, is moderately correlated with better mental health in that those who are considered to be authoritarian have shown to exhibit greater self-esteem and less anxiety (Ray, 1984). 3.5 Summary This chapter presented the argument that when compared to the other measures of rigidity as a self-reported tendency, the PNS scale was considered to be the most suitable for the purposes of the present research. It was argued that in comparison to t other scales, the PNS scale was shown to be the best instrument with which to reliably measure the desire for simple structure concept. In contrast to some of the other scales, the PNS scale assesses individual preferences for organization and structure, without assessing additional components such as attitudes towards political and social issues. I comparison to the other measures of cognitive rigidity, the PNS scale is unique in that in capturing the desire for simple structure concept it allows for the valid and reliabl measurement of two empirically related yet conceptually distinct factors, DS and RLS. It is these factors and their potentially divergent relationships with mental health, wh form the primary focus of the present research. This chapter also presented the argument that although most of the evidence presented thus far suggests that rigidity is associated with poor mental health, such as in 42 depression, there is some evidence that suggests that some aspects ofrigiditysuch as the desire for structure, may at times be associated with positive mental health. The following chapter presents a comprehensive overview of the PNS construct and it elaborates upon its two factors, DS and RLS and how they might relate to mental health. 43 CHAPTER FOUR PERSONAL NEED FOR STRUCTURE 44 The personal need for structure concept was introduced in the previous chapter. This chapter will expand upon the information already provided on the PNS scale. The chapter will begin by outlining the early origins of the PNS construct. We will also discuss the role that PNS plays in the ways that people negotiate their social worlds This will be followed by a discussion on the phenomenology of PNS and of the more recent theoretical formulations of this concept. The last stages of the chapter will on the PNS scale and its relationship with cognitive functioning and mental health. Specific attention will be placed upon the two factors of the PNS scale, DS and RLS and how they relate to mental health. 4.1 An introduction to the concept of need-for-structure How meaning about the social world is attained is an essential concern of social cognition. Harvey (1963) argued that a biogenic need for structure can be postulated. However, be it a biological need or not, the making sense of situations appears to be essential to the prediction of recurrences and differences in the world. To cope or e to survive in our environment may require the ability to comprehend and define it. This skill can be conceptualized as a causal drive. Heider (1944, 1958) argued that humans posses such a drive which is designed to establish a set of causal explanation aimed at not only reducing the unpleasantness of doubt, but also providing a sense of mastery over the environment. One can therefore conceptualize the tendency to impose meaning on the environment as a chronic tendency that Thompson et al. (1989) labeled the personal need for structure. The tendency to structure our environment can serve many purposes some of which are explored below. 45 The world we live in can be described as complex, laden with a multitude of information. As a result of the vast amount of information surrounding the senses and the well-documented limits in attentional capacity the information processing task can be rather overwhelming (Pashler, 1992). According to Neuberg and Newsom (1993) people can reduce their cognitive load in two fundamental ways. The first of which involves the use of avoidance strategies. Avoidance strategies allow individuals to lim the amount of information that they are exposed to. One can create barriers that restri the chances that social and environmental information will unexpectedly impinge on their lives. Individuals may also ignore or pay less attention to potentially available information. Information reduction can also be achieved by attempting to structure the world into a simplified more manageable form. One can engage in behavioral structuring by establishing routines and relying on formalized social scripts in their encounters with others. One could also reduce the amount of informational quantity and complexity by engaging in a process called cognitive structuring. Cognitive structuring refers to the creation and use of abstract mental representations (e.g., schemata, scripts, and stereotypes). Representations as such are simplified generalizations of previous experiences. Although these generalizations may not always accurately apply to certain situations, they serve peoples needs for cognitive efficiency, enabling them to draw inferences about new events without having to expend a great deal of cognitive resources. Structures that are best able to reduce one's cognitive load are those that are simple, meaning that they are relatively homogeneous, well defined and distinct from other 46 structures. This enables clear interpretations of n e w events. Simple structures are argued to aid in the efficient processing of social, environmental and personal information. There is research, which also demonstrates structure consistency biases in attention, interpretation, memory, inference and impression formation, suggesting that people also possess a tendency to maintain such structures (Fiske & Taylor, 1991; Moskowitz, 2001). Neuberg and Newsom (1993) argue that people meaningfully differ in the extent to which they are dispositionally motivated to cognitively structure thei worlds in simple unambiguous ways. The use of simple cognitive structures underlies many important psychological events such as stereotyping, prejudice, affective extremity and certain psychopathologies such as depression (Neuberg & Newsom, 1993; Schaller et al., 1995; Thompson et al., 2001). Research has emphasized the social perceiver's flexibility in response to alternative social-cognitive motivations (e.g., Fiske & Neuberg, 1990). Much of this work still assumes that simplification motives serve as the default, with alternate motives such as accurate perception primarily arising when activated by extraindividual forces. Neuberg and Newsom (1993) therefore argue that an exploration of individual differences in the desire for simple structure enables one to begin addressi the ubiquity of the simplification motive. Evidence supporting such a motive based individual difference would not only imply the flexibility of the social perceiver but would also place the source of at least some of this flexibility within stable aspects o the perceiver as opposed to within the perceivers environment. Neuberg and Newsom (1993) also argue that research has focused primarily on environmental factors (e.g., context) and on short term unstable perceiver factors (e.g., mood). The desire for 47 simple structure concept therefore, joins other attempts to link notions of motivation and social cognition with personality. 4.2 The phenomenology of Personal Need For Structure - PNS The PNS scale was designed to capture as a chronic individual motive several aspects of the desire for simple structure. One of the aspects is the desire for structure and other refers to the manner of response to a loss of that structure. A person high in de for structure may be one who leads a simple, tightly organized life. Those who respond poorly to a lack of structure are those who should experience discomfort if they perceive structure and clarity to be missing from situations. They find ambiguity and "grey" areas annoying and uncomfortable. Those who respond poorly to a lack of structure are also more likely to be disturbed by people who vacillate or by opinions and situations that lack clarity and order. This style may lead to rigid, inflexible thinking and an unquestioned acceptance of the validity of one's own beliefs. Finally, this style of thinking and behaving may also be less useful in situations requiring the rapid review and reconsideration of beliefs in light of new evidence. 4.3 A psychological theory of epistemology The theory of lay epistemology described the cognitive and motivational aspects of knowledge seeking (Kruglanski, 1989). The cognitive component of knowledge seeking refers to the specific content of the concepts, while the motivational componen refers to how motives influence the initiation, course and cessation of the knowledge seeking process. Both the cognitive and motivational components function concurrently in a two-stage process of hypothesis generation and validation. The hypothesis generation stage is dependant on cognitive capability, which is in turn governed by the 48 availability (e.g., the required knowledge stored in long term-memory) and the accessibility (the momentary ease of retrieval of a portion of what is stored in longterm memory) of certain thoughts or hypotheses. During the process of hypothesis validation one gathers evidence that serves to refute or support their hypotheses. In order to reduce doubt individuals perceive a stimulus, generate hypotheses regarding the appropriate category with which to capture that stimulus, test the hypothesis, free the hypothesis testing when an appropriate solution has been made and then make inferences and plan accordingly. The evidence attended to and the significance given to any piece of evidence as well as the dissolution of the validation process is influenced by how quickly the person desires an answer and whether a specific type of answer is desired. Kruglanski and Freund's (1983) model focused on the testing and cessation of knowledge seeking processes. They conceptualized these processes as being influenced by two orthogonal motives: a) needs for structure and b) needs for specific versus nonspecific closure. A need for structure occurs when an individual is compelled to impose structure to dispel uncertainty and ambiguity. The need for structure is concidered to be the equivalent to the need to quickly remove doubt and arrive at any meaning that sufficiently captures the stimulus situation. This is associated with cognitive consequences such as generating fewer hypotheses and a less thorough review of relevant information (Freund et al, 1985; Kruglanski & Freund, 1983). A need for validity is related to the perceived costs of error due to some decision. When costs are substantial, individuals are more cautious in their judgements. Fear of invalidity is associated with the generation of more hypotheses (Kruglanski & Freund, 1983). 49 Thompson and her associates extended the theory of lay epistemics into the realm of individual differences. Thompson et al. (2001) postulated that the needs for structure and validity characterized typical response styles of certain individuals that would be evident across situations. Individual differences in dogmatism, authoritarianism, and intolerance of ambiguity have been described as "hot" motives that served basic emotional desires. However, Thompson et al. (2001) argues that these conceptualizations contain components of structure seeking that imply that such differences might exist independent of the "hot" emotional components. Structure seeking may interact with situational demands, leading individuals to remain in or seek out situations that best serve these needs. Thompson et al. (2001) contend that our understanding of how people interact with and comprehend their environments can be increased if we reframe the situationally based need for structure and fear of invalidi as being representative of chronic tendencies. 4.4 Implications of PNS for cognitive functioning The psychometric fitness of the PNS scale and its two sub-factors was established earlier in chapter 3. It was reported that the PNS scale and its two factors showed evidence of more than adequate convergent and discriminant validity. The PNS scale is argued to be able to predict several aspects of everyday social-cognitive functioning. These include the application of pre-existing beliefs and stereotypes and the ability to predict more complex planned behaviors that are subject to a variety of additional external constraints. However, being a relatively new scale, only a handful of studies have been published that examine the characteristics of high and low PNS scorers (Schultz & Searleman, 1998). As argued earlier, our social and non-social environments are complex, containing vast amounts of information, which may be 50 difficult to process comprehensively. Consequently, one m a y form cognitive categories that represent our abstracted, simplified ideas of the nature of the world and its contents. It is argued that the PNS scale serves as a valid operationalization of the desire for simple structure. Those scoring high in PNS should form and possess more simply structured, less complex views of the world than those who score low in PNS. Neuberg and Newsom (1993, study 3) argued that the existence of a consistent negative relationship between PNS and structural complexity would amount to further strong evidence for the validity of the PNS construct. The results indicated a strong pattern of negative correlations between PNS and sort complexity. Those high in PNS demonstrated card sorts that were less complex than those who were low in PNS did. Hence they were more likely to use simplistic categorical structures. The results indicated that the PNS predicts both a stable and general preference for structure, as correlations were evident across four domains (tw social and two non-social). Noteworthy is that the subjects completed the PNS 4-6 weeks prior to the sorting task. The two PNS factors correlated differently with complexity, depending on the particular sort. RLS was negatively and significantly associated with sort complexity across all four domains self, elderly, furniture and color. In contrast, DS evidenced modest correlations with complexity for the color and furniture sorts only. The research that is published suggests that high PNS is associated with a greater tendency to stereotype in ambiguous situations (Neuberg & Newsom, 1993, study 4; 51 Schaller et al., 1995). Work on impression formation and stereotyping has shown that people often categorize others and view them as members of a group about which they already possess generalized knowledge as opposed to perceiving them as individuals. Social categorization processes as such are likely to occur in order to reduce cogniti load and to simplify the cognitive task of understanding others. Stereotyping can be viewed as a structural means of simplifying an already complex world. Neuberg and Newsom (1993, study 4) found that high PNS people were more likely to apply existing gender stereotypes when drawing inferences about individuals from ambiguous behavior. This study however focused only on a process that arises only after group stereotypes were established. Later, we shall discuss the Schaller et (1995) studies, which explored how such stereotypes arise in the first place, as well assessing the link between PNS and stereotype formation. Moskowitz (1993) explored whether the need to impose structure might be strong enough to promote the unconscious use of trait inferences in the categorization of behavior. Spontaneous trait inferences (STI's) are one way in which people may try to structure or attempt to control their interpersonal interactions. Therefore people hig the desire for structure may rely on such inferences to a greater degree. They may als take these inferences to be more than summaries of their observed behavior. Indeed they may assume that their inferences serve as descriptors of the personality of the perceived person. Heider (1944) described dispositional inference as the most complete and structured explanation for an event. This argument lead Moskowitz (1993) to consider that those who employ STI's are more likely to make the inferential leap from 52 behavior identification to dispositional attribution. His results indicate that high people are more likely than low PNS individuals to form STI's. Thompson, Roman, Moskowitz, Chaiken, and Baragh (1994) have found that priming effects were also mitigated by PNS. In their research high PNS subjects were more likely to use constructs that had been recently primed in making subsequent judgments about the target's ambiguous behavior. In contrast, the judgements of those who were low PNS scorers were not consistent with the primed constructs. Thompson et al. (1994) concluded that high PNS individuals tended to freeze on the first available explanation were confident in their decision and so were unlikely to search for other judgments. Those low in PNS, however, were less confident in their most accessible judgments and would therefore be more motivated to consider alternative judgments. Kaplan, Washula, and Zanna (1993) assessed the influence of PNS on impression formation processes. They found that high PNS subjects under time pressure were less likely to integrate new information about positive or negative traits regarding a tar Kaplan et al. (1993) also found the amount of information (whether it be 1 or 6 piece had little effect on high PNS subjects who encountered pressure. Their judgments were mostly guided by their initial impression. Schaller et al. (1995) found that high PNS subjects were more likely than low PNS subjects to form erroneous group stereotypes. However, high PNS subjects were more likely to stereotype targets and engage in more simplistic forms of reasoning only when subjects were not required to later justify t judgments. When subjects knew that they had to publicly justify their judgments, high PNS subjects became less simplistic in their judgments and low PNS actually became less complex in their reasoning processes. Pilkington and Lydon (1997) more recently conducted an impression formation experiment whereby those high and low in PNS and those high and low in prejudice rated the interpersonal attractiveness of homosexual and heterosexual targets who possessed attitudes that were similar, ambiguous or dissimilar to the subject. They suggested that the desire for cognitive simplicity characteristic of high PNS would predispose such individuals to be more responsive to information consistent with their pre-existing schema's, whereas low PNS subjects would be more responsive to schema inconsistent information. Pilkington and Lydon (1997) argued that as a result of the threatening worldview inherent in prejudice, PNS would interact with attitude similarity and prejudice to predict judgments of interpersonal attraction. In accordance with this view, low PNS/ low prejudice subjects appeared more receptive to information indicating that the targe held attitudes differing from their own. Low PNS/ high prejudice subjects seemed to base their attraction judgments of the target primarily on information indicating attit similarity. Subjects high in PNS and high in prejudice were more responsive to information indicating the targets attitude dissimilarity, whereas high PNS/low prejudice subjects were most responsive to the target's attitudes that were similar to their own. Identical effects were obtained when Pilkington and Lydon replaced their measure of prejudice with a more direct measure of psychological threat. Finally, the PNS conceptualization demonstrates its breadth by moving beyond cognitive styles to behavioral preferences such as self-reliance in behavior selection and to the prediction of planned behaviors. Neuberg and Newsom (1993, study 2) 54 found a positive correlation between PNS and routinization indicating that those high PNS are more likely to create behavioral routines than are low PNS scorers. Similarly those high in PNS also tended toward being low self monitors, indicating that that suc individuals may be characterised by the use of their own structures as a determinant o behavior. These results allow for the probability that high PNS individuals should als be likely to arrange their social interactions in ways that allow them to avoid complexity and retain their simple structures. Thus such individuals may gravitate toward predictable social interactions. In line with the aforementioned research, Thompson et al. (2001) looked at the degree of rigidity evident in one's personal habits, which includes traditionalism, rule boundedness and discomfort and opposition to change as measured by the RAPH (Meresko et al., 1954). People scoring high on the RAPH are less likely to modify their behaviors and personal habits even when it may be appropriate to do so (Meresko et al. 1954). A positive relation between high PNS and RAPH scores was found. This suggests that those high in PNS tend to exhibit behavioral rigidity regardless of the inappropriateness of their behaviors or habits, or perhaps even when it may be more beneficial for them to change their behaviors. This is consistent with the research indicating that high PNS individuals are more likely to use their own structures as a determinant of behavior as opposed to external influences as is the case in high self monitors. Thompson et al. (2001) argue that the magnitude of the PNS-RAPH correlation (r=.64, p< .001) is high enough to indicate some degree of redundancy between the two measures. Thompson et al. (2001) argues that the PNS scale possesses phenomenological precedence as the need for structure could be manifested in rigidity 55 concerning personal habits, but it is less likely thatrigidityin personal habits could cause a high need for structure. Finally there is some preliminary evidence for behavioral validity of the PNS scale in terms of its ability to predict more complex planned behaviors. Neuberg and Newsom (1993, study 5) found that despite the existence of potentially influential environmen cognitive and social forces, the behavior of completing a subject pool requirement was predicted by subjects preferences for simple structure. They found that students high PNS were more likely to complete the requirement earlier in fact, they were more likel to complete the requirement at all, compared to low PNS individuals. These results are corroborated by Roman, Moskowitz, Stein, and. Eisenberg, (1995) who found that high-PNS subjects also participated earlier in the semester and completed their resear participation more quickly once beginning their involvement. 4.5 PNS and mental health There is preliminary evidence suggesting a relationship between global PNS and mental health (Neuberg & Newsom, 1993; Thompson et al., 2001). The relationship between PNS and mental health can be observed when assessing the cognitions of depressed people. Cognitive simplification is implicated in depression (e.g., Beck, 1967). Therefore it is reasonable to expect high PNS individuals to be susceptible to depression. Recent research provides preliminary evidence of a relationship between depression and PNS, such that a moderate positive relationship was found between PNS and Beck Depression Inventory scores (Thompson et al., 2001). This is reasonable considering the presence of stable, negative, global attributions and rigid schemata i 56 depressed individuals. It is this thinking style that reduces "the complexity, variability and diversity of experience and behavior" (Beck, Rush, Shaw, & Emery, 1979, p. 15). 4.6 RLS, DS and mental health The PNS can reliably be broken down into two sub-scales (Neuberg & Newsom, 1993). As mentioned earlier in chapter 3, these sub-scales have been shown to capture two related, but conceptually independent factors. Factor one is DS. This factor refers to extent to which people prefer to structure their lives. Some individuals may be higher their desire for structure (e.g., "I enjoy having a clear and structured mode of life", like to have a place for everything and everything in its place") than others. Factor t is RLS. This factor refers to the manner in which people respond when confronted with unstructured, unpredictable situations. Those considered to be high in RLS tend to respond negatively to interruptions to routines or to uncertainty/unpredictability (e.g "It upsets me to go into a situation without knowing what I can expect from it", "I hate to be with people who are unpredictable"). For each sub-factor some items are reversed scored, so that high scores on either factor imply that the respondent tends to react v poorly to a lack of structure or that they have strong tendencies to desire structure in their lives. Neuberg and Newsom (1993) argued that identifying the relationship between PNS and the constructs of the Big Five personality dimensions would be useful for both the purposes of assessing convergent and discriminant validity and for exploring proposed distinctions between the two PNS factors (John et al., 1991). Results indicated that bo PNS factors were significantly negatively correlated with Openness. This is to be expected as rigid individuals would be more likely to be less open to a wide range of 57 experiences. DS but not RLS was positively correlated with Conscientiousness. This was to be expected due to the pro-active nature of the DS factor. RLS but not DS was significantly positively correlated with Neuroticism and significantly negatively correlated with Extraversion. This was expected due to the social-affective nature of th RLS factor. Neuberg and Newsom (1993) assessed the relationship between PNS and measures of trait anxiety and affective distress as a means of assessing the hypothesized distinctio between the two sub-factors. As expected, correlations of PNS with measures of affective distress assessing social anxiety and trait anxiety revealed that such distres far better reflected in the RLS as opposed to the DS component, as evidenced by significant positive correlations. Thus far the preliminary evidence seems to support a distinction between the two sub-factors of the PNS scale in predicting mental health outcomes. The different predictive abilities of the two-sub factors is further highlight when one assesses how each sub-factor behaves in relation to reactions to stress. 4.7 The relationship between PNS and stressful life events Recent research lends support to the argument of a distinction between the two components of the PNS scale (Elovainio & Kivimaki, 1999). Elovainio and Kivimaki (1999) found a significant relationship between RLS and psychological strain. In contrast to this result, they found that the relationship between DS and strain was insignificant. They concluded that RLS is a factor, which may effect an individuals vulnerability to stress. These results are consistent with previous research that also found that DS appears to act as a psychological resource which decreases self-reported 58 strain, whereas RLS seems to represent a sensitivity factor for stress and strain (Kivimaki, Elovainio, and Nord, 1996). Elovainio and Kivimaki (1999) in a second study broadened the focus of the relationship between DS, RLS and strain by taking contextual factors into account. Elovainio and Kivimaki (1999) assumed that the relationship between DS, RLS and strain might be moderated by the level of complexity of the environment in which one operates. More specifically they expected that the relation between RLS and psychological strain would be stronger among those working in high complexity occupations than among those operating in low complexity occupations. No predictions were made regarding DS, strain and complexity. The results of study two revealed that the relationship between PNS and strain do in fact vary across the different components of PNS and is dependent on job context. The association between strain and RLS seemed to be linear and particularly clear when a high RLS person has to deal with the demands of a complex work situation. These findings strongly support the notion that high RLS increases strain under conditions high complexity compared to low complexity conditions. Different results were obtained for the relationship between DS, strain and complexity. The results demonstrated that not even being in a more complex and unstructured environment seemed to make individuals high in DS more vulnerable to the effects of stress. Psych strain in both these studies as well as in the Kivimaki et al. (1996) study was asses utilizing a five-item scale of psychological strain symptoms derived from the Occupational Stress Questionnaire (Elo, Leppanen, Lindstrom, & Ropponen, 1992). 59 9 6 . 5 % of the subject pool across all these studies were Finnish w o m e n . This m a y limit the generalizability of these studies to other populations. 4.8 Advantages of the PNS scale It is argued that the PNS scale unlike most of the other self-report scales is novel in it reliably distinguishes between two different types of rigidity, DS and RLS. This is important as this scale allows us to test our hypotheses that RLS and DS may have different relationships with mental health. As mentioned in earlier on in chapter 3, th are alternative personality constructs that appear to have the desire for simple struct as part their conceptual constitution (e.g., Need for Closure, Authoritarianism, Rigidit Dogmatism, Uncertainty Orientation and Intolerance of Ambiguity). However, all of these constructs are also characterised by additional unrelated constructs. In contrast the aforementioned scales, the PNS scale assesses individual preferences for structure and organization, without assessing attitudes toward other factors such as political an social issues. Alternative constructs such as the Need for Closure, Authoritarianism, Rigidity, Dogmatism, Uncertainty Orientation and Intolerance of Ambiguity are only marginally correlated with the PNS scale. The Rigidity scale and the NFCS are instruments that have been shown to correlate with the PNS scale. However, the Rigidity scale only correlates with the PNS on the basis of a small subset of its items (Neuberg & Newsom, 1993) and the evidence previously presented suggests that the NFCS can be considered redundant with the PNS scale (Neuberg et al., 1997, Thompson et al., 2001). The PNS scale is unique in that the aforementioned findings regarding the breadth of PNS demonstrated influences do not follow from the alternative self-report measures of 60 cognitiverigidity.Although one can hypothesize an alternative personality influence for any single finding, it is important to note that none of the aforementioned self-re measures of cognitive rigidity may be able to account for the full range of PNS findings. For example one could argue that strong authoritarians might be likely to stereotype others and complete their subject pool requirements. However it seems unlikely that such individuals should be particularly prone to simple organizations, spontaneous trait inferences, depression and so forth without accepting the notion that desire for simple structure partially underlies Authoritarianism. (Neuberg & Newsom, 1993). 4.9 Summary At the beginning of this chapter we elaborated upon the notion of desire for simple structure. Simple structures are described as being relatively homogeneous, well defined and distinct from other structures. It was argued that people meaningfully diff in the extent to which they are dispositionally motivated to cognitively structure thei worlds in simple unambiguous ways. This chapter also presented the evidence which illustrated that the use of simple cognitive structures underlies many important psychological events such as stereotyping, prejudice, behavioral rigidity and certain psychopathologies such as depression (Neuberg & Newsom, 1993; Schaller et al, 1995; Thompson et al., 2001). This chapter presented evidence indicating that those who have a personal need for structure do in fact form and possess more simply structured, less complex views of the world (Neuberg & Newsom, 1993). This tendency was shown to be more prominent in those who respond poorly to a lack of structure compared to those who desire structure. A key focus of this paper is to elaborate upon the relationship between the two factors of the PNS scale and mental health. The preliminary evidence thus far suggests that RLS factor of the PNS scale behaves somewhat differently to the DS factor of the PNS scale (Elovainio & Kivimaki, 1999; Kivimaki et al., 1996; Neuberg & Newsom, 1993). It seems that the DS component has far less of an association with negative mental health states than does the RLS factor. The research therefore, lends support to the argument that different types of rigidity might predict different outcomes with rega mental health. Also of interest was the research involving the interaction between complex environments and the components of PNS (Elovainio & Kivimaki, 1999; Kivimaki et al., 1996). The evidence provided preliminary support that the relationsh between PNS and strain vary across the different components of PNS and is dependent on the complexity of one's environment. The present research: Research hypotheses Study 1 The present research aimed to replicate and expand the previous research concerning the components of PNS and mental health. The present research is unique in its aim to more comprehensively address the possibility that cognitive rigidity may well have different components, which have contrasting implications for mental health. The present research extended previous research such as that conducted by Elovainio and Kivimaki (1999), Kivimaki et al. (1996) and Neuberg and Newsom (1993) by using Australian university students comprised of both males and females. The aforementioned research was conducted on American (e.g., Neuberg & Newsom, 1993; Thompson et al, 2000) and Finish populations (Elovainio & Kivimaki, 1999; Kivimaki 62 et al., 1996). In their assessment of the relationship between the components of PNS and mental health, prior research failed to provide a comprehensive assessment of mental health. For example, Elovainio and Kivimaki (1999) and Kivimaki et al. (1996) utilized a five item occupational strain measure. The present research meaningfully extended this previous research by including additional measures of mental health to include the domains of depression, suicidal ideation, hopelessness and life satisfactio The Neuberg and Newsom (1993) studies did not formally assess the relationship between stress and PNS. Although Elovainio and associates began to address this relationship, they used a specific measure of stress - occupation complexity. Their focus was to address the issue of cognitive rigidity and its potential role in relatio occupational strain. The present research expanded these studies by utilizing a more powerful and comprehensive measure of life stress. This measure addresses a wide variety of stressful events that one may encounter in life. Stressful events such as relationship stress, financial hassles and transportation problems might examples of some of the stressors that individuals might be exposed to. The theoretical framework that guided our hypotheses was discussed in chapter 1 in the theory and hypotheses section. Raised in that section was our argument that desiring structure in itself is not irrational and thus will not lead to poor mental health. We strongly desire structure but not necessarily respond poorly when we lose it. RET argues that if humans would stick to preferences or desires and not transform them int absolute musts, they would not have so much emotional trouble (Ellis, cited in Dryden, 1991). Hence according to RET desiring structure will not lead to emotional distress. The RET framework would assume that those who convert their desires for structure ("I prefer it when the rules in a situation are clear") into absolutistic demands ("Th 63 rules in a situation must always be clear") are more likely to experience emotional disturbance. These demands suggest that the person is not accepting reality. When their demands are contradicted by reality these individuals are likely to respond with thoughts such as "I can't handle this situation, or this is awful". Therefore the demands and the resulting thoughts are likely to lead these individuals to experience substantia distress (Ellis, cited in Dryden, 1991). The RET framework would assume that people high in RLS have unrealistic demands about reality. In light of the perspective offered by Ellis, it is possible that those who respond poorly to a lack of structure may be thos who do not just desire structure but those who deem the presence of structure as a necessity or a must. In light of the above we expect that DS and RLS will not have the same relationship with mental health. Therefore we predict that: H 1 : Response to lack of Structure will be significantly associated with lower levels of mental health. H 2 : Desire for structure will not be related to lower levels of mental health. H 3 : Those high in Response to Lack of structure will respond worse to stressful life events compared to those low in Response to Lack of structure. H4 : Desire for structure will not interact with stressful life events Study 2 Study 2 was designed to expand and replicate the results of study 1. This study expanded upon study 1 in that we included additional measures of mental health to include measure of anxiety, stress and a positive measure of well-being, life satisfaction. 64 CHAPTER FIVE STUDY 1 METHODOLOGY, RESULTS AND DISCUSSION 65 5.1 METHOD 5.1.1 Participants Three hundred and two university students (70 male and 232 female, mean age = 20) participated in the study in order to satisfy a course requirement. A small number of students failed to complete the questionnaire. For these reasons the following numbers of people were excluded: 8 people for the Hassles scales, 12 for the Suicide Ideation Questionnaire, 2 for the Beck Depression Inventory, and 2 for the Beck Hopelessness scale. The P N S scale was not included in the questionnaire battery for thefirst38 subjects. Thus, these 38 subjects were not included in the analyses. The total amount of subjects included in the analyses were 240 students (50 male and 190 female). There were no differences in the mental health between people w h o did or did not complete the entire protocol. 5.1.2 Design and procedure This study utilised a cross-sectional design. All participants were recruited from the University of Wollongong. Testing times for the present research were placed on university notice boards. Subjects volunteered to participate by placing their names next to the times that suited them best. All participants completed a battery of questionnaires. The measures that formed part of the questionnaire appear below. Participants were given an information sheet (e.g., Appendix, A ) and a consent form (e.g., Appendix, B). They were advised that their participation was voluntary and that data would be collected anonymously. After the study, subjects were fully debriefed and provided with a hand-out that encouraged them to seek assistance if struggling with suicidal thoughts. Contact details for a list of professionals and helping organisations were included (e.g., Appendix, J). 66 5.1.3 Materials The Beck Depression Inventorv-H fBDI-TI- Beck, Steer & Brown, 1996). The BDI-II consists of 21 items. These items are statements that measure cognitive, somatic and behavioral indices of depression experienced during the past two weeks. Each item is scored 0 to 3 with high scores indicative of depression. Examples of statements inclu ' I do not feel sad", "I don't have enough energy to do much". The inventory shows good internal consistency (.86). It has been shown to have good construct validity in university population (Oliver & Burkham, 1979). The scale is included in Appendix C. Suicide Ideation Questionnaire (SIO: Reynolds, 1987). The SIQ consists of 30 items (e.g., "I thought it would be better if I were not alive") concerning thoughts relati suicide that occurred in the previous month. The 7-point scale ranges from " I never had this thought " (0) to " almost every day" (6). The SIQ is highly reliable (intern consistency =.96). It is also related to a number of theoretically relevant measures including depression, hopelessness, and negative life events (Reynolds, 1987). The questionnaire in included in Appendix H. The Beck Hopelessness Scale (BHS; Beck, Weissman, Lester, & Trexler, 1974). The BHS contains 20 items measuring the extent of negative expectations and pessimism regarding the future. Subjects rate items as true or false (e.g., "I look forward to future with enthusiasm", "My future seems dark to me"). The BHS has high levels of internal consistency (KR-20= .89) and it predicts eventual suicide (Beck, Steer, Kovacs, & Garrison, 1985). The scale is included in Appendix E. 67 Personal Need for Structure (PNS; Thompson et al., 1989, submitted). The P N S has 12 items. Respondents rate each statement on a 6-point scale ranging from "strongly disagree" (1) to "strongly agree"(6). The scale aims to capture, as a chronic individu motive, several aspects of the desire for simple structure. The scale has two factor structures - Desire for Simple Structure (DS) and Response to Lack of Structure (RLS). Items indicative of DS include "I enjoy having a clear, structured mode of life" and " like to have a place for every thing". Items capturing RLS include "It upsets me to go into a situation without knowing what to expect" and "I hate to change my plans at the last minute". The scale has good internal reliability and test retest reliability (DS= & RLS= .79). The scale is included in Appendix D. Stressful Life Events (Hassles Scale) (HAS; Kanner et al., 1981). The HAS is a 117item inventory that assesses the frustrations and irritations of everyday encounters. includes items such as "troublesome neighbors", "financial insecurity", "difficulty wi friends" and "transportation problems". It is rated on a 3-point Likert scale ranging from "somewhat severe" (1) to "extremely severe" (3). The three point severity scales were summed to generate a cumulative severity score (Kanner et al., 1981). The HAS evidences moderate reliability (test-retest: .48 to.79 over lmth). The HAS has adequat construct validity, correlating in the expected direction with measures of stress, negative affect and psychological symptoms (Kanner et al., 1981). In future discussion regarding the HAS, hassles will be referred to as stressful life events. Internal stre measured by the DASS, which we included in study 2. Thus, we decided to use the term stressful life events to refer to the HAS in order to avoid confusion with intern stress as measured by the DASS. The scale is included in Appendix I. 68 5.2 RESULTS 5.2.1 Descriptives Table 1 presents the rate of suicidal ideation, depression, and hopelessness, other central sample characteristics. The mean rate of depression reported he represents a mild level of depression and is similar to that found in differe samples (e.g., Beck, Steer, & Brown, 1996: M = 12.56). Although some of the men health variables had distributions that were not normal (e.g., few people had ideation) we had no theoretical basis on which to transform the scales, so we analyzed raw data (see Mayer, Carlsmith, & Chabot, 1998). The same approach was followed for study 2. Our primary safeguard against type 1 error was to exami consistency of effects across both studies and to give the greatest weight or to the results that were replicated. As a further precaution, we used a two-t of .05 even though all our predictions were directional and might have been s tailed. Table 1 Means (M) and Standard Deviations (SD) of major sample characteristic variables. Measure M SD DS 3.81 LOl RLS 3.64 .77 Depression 12.73 9.13 Hopelessness 24.13 3.95 Suicidal Ideation 20.56 22.47 Stressful Life Events 53.95 33.85 Note: " D S " indicates Desire for Structure and "RLS" indicates Response to Lack of Structure. 69 We predicted that RLS would be associated with poor mental health outcomes and that DS would not be associated with poor mental health outcomes. As can be seen in Table 2 these predictions were supported. RLS was associated with more depression, hopelessness, and suicidal ideation, and with more stressful life events. Although significant, the correlations between RLS and the mental health variables were small. As predicted DS was not associated with poor mental health. In fact DS was actually significantly associated with less hopelessness. Concerning the other measures, depression, hopelessness, and suicidal ideation are all positively interrelated. Table 2 Intercorrelations between rigidity, stressful life events and mental health measures. 1 2 3 4 5 6 IDS « .57** ^05 U3* T08 ^01 2. RLS -- .24** .15* .13* .14* 3. Depression - .58** .69** .40** 4. Hopelessness -- .57** .18** 5. Suicide Ideation - .32** 6. Stressful Life Events Note. "DS" indicates Desire for Structure and "RLS" indicates Response to Lack of Structure. *P<0.05. ^.PO.Ol 5.2.2 Regression analysis between rigidity, stress and mental health measures We next used regression analysis to examine the extent to which RLS and DS uniquely relate to each aspect of mental health. As expected, the regression analysis in Table reveal that when controlling for DS, RLS is significantly related to depression, suic 70 ideation and hopelessness. This indicates that as predicted, those who respond negatively to a lack of structure tend to evidence poorer mental health outcomes in that they experience greater amounts of depression, suicide ideation and hopelessness. Also as predicted, when controlling for RLS, DS was not associated with poor mental health outcomes. Indeed it actually shows a significant negative relationship with depression, suicide ideation and hopelessness. This indicates that those high in the desire for structure do not experience poor mental health outcomes. In fact the data suggest that these individuals tend to experience better mental health in that they evidence less depression, suicide ideation and hopelessness. Table 3 Regression analysis between rigidity, stressful life events and mental health measures. RLS Beta R Square Beta DS R Square Total R Square Depression .40*** .106 -.30*** .053 .109 Hopelessness .33*** .047 -.32*** .067 .089 Suicide Ideation .26*** .073 -.23** .036 .053 Note: "RLS" indicates Response to Lack of Structure and "DS" indicates Desire for Structure. 'Total R Square" is the amount of variance explained by both D S and R L S combined. *P<0.05. **P<0.01. ***P<0.001. 5.2 J The interaction between rigidity and stressful life events Our third hypothesis was that those high in Response to Lack of Structure will respond worse to stressful life events compared to those low in Response to Lack of Structure. 71 General Linear Model (GLM) Analyses of Covariance (ANCOVA) were used to evaluate the impact of sex, stressful life events, rigidity (DS and RLS), and the interaction between stressful life events and rigidity on our measures of mental hea (suicide, depression, and hopelessness). All independent variables were treated as covariates and were converted to Z scores in order to reduce the problem of collinea (Aiken & West, 1991). The main variables in this study were not dichotomised. There were no median splits used in any analyses. Sex was effect coded (-1 male; 1 female). The first set of analyses focuses on stressful life events. There was significant mai effects of stressful life events on depression, F (1,234) = 35.26, MSE = .15, B = .13 < .001, hopelessness, F (1,234) = 4.21, MSE = .035, B = .025, p < .05, and suicidal ideation, F (1,234) = 20.50, MSE = .48, B = .20, p < .001, indicating that stressful events was associated with worse mental health outcomes. We examined all the results while controlling for sex and found no differences in the conclusions. Thus sex does not confound our conclusions. The main effect results for RLS on depression, hopelessness and suicidal ideation were significant and are of the same nature of th already reported in Table 3, all ps<05. Concerning our third hypothesis, the results indicated that there was a significant interaction between RLS and stressful life ev for depression, F (1,234) = 5.00, MSE = .145, B = .056 p = .03, hopelessness, F (1,23 = 5.87, MSE = .035, B_= .029, p = .02, and suicidal ideation, F (1,234) - 4.45, MSE = .488, B = .097, p = .04. Figures 1.1 to 1.3 illustrate the interaction. As predicted, stressful life events was associated with greater increases in depression, hopelessne and suicidal ideation amongst those high in RLS (rigidity) compared to those low in RLS. 72 1 0.9 0.8 — c 0.7- 06 1 " jg 0.5 * - Low Negative Response to Lack of Structure i ngn Negative Response to Lack of Structure * I" 0.4°0.30.2 0.1- n \j i L o w hassle High hassle Figure 1.1 Interaction between RLS and Stressful Life Events for Depression. 1.35 1.3 Low Negative Response to Lack of Structure High Negative Response to Lack of Structure co 1.25 to » 1-2 w Q) © 1.15 a o 1 1.1 1.05 1 L o w hassle High hassle Figure 1.2 Interaction between RLS and Stressful Life Events for Hopelessness. 73 2.5 2 c o 2 1.5 2CO — ^ ^ _ ^ _• * " ^ ^ High Negative Response to Lack of Structure 2 1 o 3 CO n u - Low Negative Response to Lack of Structure H L o w hassle High hassle Figure 1.3 Interaction between R L S and Stressful Life Events for Suicidal Ideation. W e next utilized A G L M A N C O V A to test our fourth hypothesis that D S would not interact with life stress. As reported in the previous analyses, stressful life event significant effect on all three of the mental health variables, all ps< .05. The mai results for DS on depression, hopelessness and suicidal ideation are the same as the previously reported results in the regression analysis in Table 3. As predicted DS w not associated with worse mental health outcomes, all ps>.05. Unexpectedly, the GLM ANCOVA revealed that there were significant interactions between DS and stressful life events for depression, F (1,234) = 7.00, MSE = .144, B = .063, p = .009, hopelessness, F (1,234) = 5.11, MSE = .035, B = .027, p = .03, and suicidal ideation, (1,234) = 4.09, MSE = .488, B = .089, p = .04. Figures 2.1 to 2.3 illustrate this effe Stressful life events were associated with greater increases in depression, hopeless and suicidal ideation among those high in DS (rigidity) compared to those low in DS. 74 0.9 -, 0.8 0.7 **•-* c 0.6 o — 8 °5 p £. 0.4 cu 0.2 Q 0.3 0.1 n - Low Desire for Structure Structure I u L o w hassle High hassle Figure 2.1 Interaction between D S and Stressful Life Events for Depression. 1.25 1.2 3 1.15 Low Desire for Structure •High Desire for Structure <_> c v> I 1.1 a •? 1.05 0.95 L o w hassle High hassle Figure 2.2 Interaction between D S and Stressful Life Events for Hopelessness. 75 2.5 2 o3 co _• ^ ^ ^ —" " ' en al Ideation 2 — - Low Desire for Structure I lign Uesne loi Structure 10.5 n u L o w hassle High hassle Figure 2.3 Interaction between D S and Stressful Life Events for Suicidal Ideation. 53 Study 1 discussion The results for study 1 confirmed our first two hypotheses concerning the distinction between the two types of cognitive rigidity (DS and RLS) and their relationship with mental health. As predicted in our first hypothesis, when controlling for DS, RLS was significantly and positively related to poor mental health. This indicates that those w respond negatively to a lack of structure are likely to suffer more depression, hopelessness and suicidal ideation compared to those who do not respond as poorly to a lack of structure. Also as predicted DS was not positively related to poor mental health. In fact the regression analysis revealed that when controlling for RLS, DS was actually significantly and negatively associated with depression, hopelessness and suicidal ideation. In contrast to RLS, having a high desire for structure may be advantageous in 76 that these individuals report better mental health as reflected by their lack of depression, hopelessness and suicidal ideation. The remaining hypotheses (H3 & H4) addressed the relationship between the two types of rigidity, stressful life events and mental health. It was hypothesized that those h in RLS would respond more poorly to stressful life events compared to those low in RLS. As predicted stressful life events were associated with greater increases in depression, hopelessness and suicide ideation among those high in RLS compared to those low in RLS. Our next hypothesis was that DS will not interact with stressful life events. This hypothesis was not supported A GLM ANCOVA revealed significant interactions between DS and stressful life events for depression, hopelessness and suicide ideation These results indicate that stressful life events are related to greater increases in depression, hopelessness and suicide ideation for those high in DS as opposed to those low in DS. Even though stress lowered the mental health of those high in DS at a faste rate, those high in DS still evidenced better mental health overall compared to low DS individuals. The first study was limited in that it only focused on three aspects of mental health, depression, hopelessness and suicidal ideation. The second study attempted to expand upon study 1 by including additional measures of mental health. The second study sought to include two additional indexes of mental health namely anxiety and stress. I addition the second study also included a measure indicative of positive mental health 77 namely life satisfaction. Study 2 tested the same four hypotheses as those tested in study 1. 78 CHAPTER SIX STUDY 2 METHODOLOGY, RESULTS AND DISCUSSION 79 6.1 METHOD 6.1.1 Participants Three hundred and fifty one university students (83 male and 268 female, mean age = 22) participated in the study in order to receive course credit. This study comprised two parts, survey A and B. Those who did not complete both surveys were excluded from the final analyses. In other words, if a subject completed A and not B, or B and not A, they were excluded from the final analyses. Thus 330 students (76 male and 254 female, mean age =22) were included in the final analyses. There were no differences in the mental health between people who did or did not complete the entire protocol. 6.1.2 Design and procedure This study utilized a cross-sectional design. All participants were recruited from the University of Wollongong. Sign up sheets detailing testing times were placed on the university notice boards. Three researchers conducted a large research project whereby all their measures were divided into two separate surveys, survey A and survey B. Students were required to complete both surveys, once they completed both surveys they were then given course credit. At the conclusion of subject recruitment, surveys were matched based on a unique code that each participant generated. Both surveys began with an information sheet briefly outlining what they would be expected to do (see Appendix A). Participants were also advised that their involvement was voluntary and that they could withdraw at any time without penalty to course grades. They were also informed that data would be collected anonymously. Following this was a consent form (see Appendix B) indicating that any data collected would be used for article publication and conference presentations. Measures relevant to this study are detaile below. At the conclusion of the study, participants were fully debriefed and provided 80 with a handout that encouraged them to seek assistance if struggling with suicidal thoughts. Contact details for a list of professionals and helping organizations were included (see, Appendix J). 6.13 Materials We used the same measures in study 1 to assess Personal Need for Structure, Suicide Ideation and Hopelessness. The Depression, Anxietv and Stress Scale (DASS; P.F. Lovibond & S.H. Lovibond, 1995; S.H. Lovibond & P.F. Lovibond, 1995). The DASS is a set of three self-report scales designed to provide relatively pure measures of the three related negative affective states of depression, anxiety and stress. The Depression scale measures dysphoria, hopelessness, self-depreciation, anhedonia, devaluation of life, inertia and lack of interest or involvement. The Anxiety scale measures autonomic arousal, skeleta muscular effects, situational anxiety and subjective experiences of anxious affect. Th Stress scale is sensitive to levels of chronic non-specific arousal. It assesses diffi relaxing, nervous arousal, and being easily upset or agitated, over-reactive or irrita and impatient. The DASS Depression and Anxiety scales show good convergent validity with other scales designed to discriminate between depression and anxiety (P.F. Lovibond & S.H. Lovibond, 1995). Alpha coefficients for the three 14-item DASS scales are as follows: Depression = .91, Anxiety = .84, and stress = .90 (N = 2,914; S.H. Lovibond & P.F. Lovibond, 1995). The scale is included in Appendix F. The Satisfaction With Life Scale (SWLS; Diener, Emmons, Larsen, & Griffin, 1985) is a well-validated measure of subjective satisfaction with life that allows respondents 81 weight domains of their lives in terms of their own values (Pavot & Diener, 1993). It consists of five statements (e.g., "I am satisfied with my life") measured on a 7-poin Likert scale ranging from completely agree (1) to completely disagree (7). Cronbach alpha coefficients (.80 to .89) and test-retest reliability values (.54 to .83) have b the acceptable range (Pavot, Diener, Colvin, & Sandvik, 1991). The instrument has been factor analyzed all five items load on one general factor of well being. The scal included in Appendix G. Stressful Life Events (Hassles Scale) (HAS; Kanner et al., 1981). The HAS is a 117- item inventory that assesses the frustrations and irritations of everyday encounters. T HAS underwent some minor modifications in this study, in that 5 items were added (items 118-122). It was felt that hassles dealing with aspects related to study "Having bad university classes and lecturers/tutors", relationships "not being in a relationshi "financial life" "becoming financially independent" and "family issues such as problems/arguments with parents, siblings and other family members" were missing from the original scale. It was also felt that these are issues that may well be highly relevant to young adults. This is significant especially in light of the fact that the respondents in this study were mostly first year psychology students. Items are rated o a 3-point Likert scale ranging from "somewhat severe" (1) to "extremely severe" (3). The three point severity scales were summed to generate a cumulative severity score (Kanner et al., 1981). The HAS evidences moderate reliability (test-retest : .48 to.79 over lmth). The HAS also has adequate construct validity, correlating in the expected direction with measures of negative affect, psychological symptoms and other stress scales (Kanner et al., 1981). The scale is included in Appendix I. 6.2 RESULTS 6.2.1 Descriptives Table 4 presents the rate of life satisfaction, suicide ideation, hopelessness, depres and anxiety as well as other central sample characteristics. The mean rate of depressi found here represents a mild level of depression. Mild levels of depression have been found in various college samples (e.g., Beck, Steer, & Brown, 1996: M = 12.56). Table 4 Means (M) and Standard Deviations (SD) of major sample characteristic variables. Measure M DS 3.81 3.55 RLS DasDepression DasStress DasAnxiety Suicidal Ideation Stressful Life Events Hopelessness Life Satisfaction .58 1.04 .55 6.39 51.01 1.16 4.64 SD .99 .91 .59 .67 .55 .65 34.03 .15 1.35 Note: " D S " indicates Desire for Structure and " R L S " indicates Response to Lack of Structure. W e predicted that R L S would be associated with poor mental health outcomes and that DS would not be associated with poor mental health outcomes. As can be seen in Table 5 these predictions were supported As expected RLS was associated with more depression, stress, anxiety, suicide ideation, hopelessness and with more stressful li events. RLS was also associated with lower levels of life satisfaction. Also as predic DS was generally not associated with poor mental health in that DS was not significantly related to depression, hopelessness and suicidal ideation. The measures 83 depression, anxiety, stress, suicide ideation and hopelessness were all positively interrelated. Life satisfaction correlated negatively with the aforementioned variab Table 5 Intercorrelations betweenrigidity,stressful life events and mental health measures. ~1 2~ ~T~ ~T~ ~1 6 7 8 9 1. DS » .57** .09 .29** .17** .06 IT* TOO ^03 2. RLS - .25** .40** .35** .19** .23** .17* -.13* 3. DasDepression -- .70** .73** .72** .44** .60** -.58** 4. DasStress -- .81** .52** .55** .40** -.44** 5. DasAnxiety - .57** .51** .45 -.47** 6. Suicidal Ideation -- .39** .54** -.52** 7. Stressful Life Events ~ 28* -.35** 8. Hopelessness — - 59 ** 9. Life Satisfaction Note: " D S " indicates Desire for Structure and " R L S " indicates Response to Lack of Structure. *P <0.05. **_°<0.01. 6.2.2 Regression analysis between rigidity, stress and mental health measures. We used regression to examine the extent to which RLS and DS uniquely relate to each aspect of mental health. Table 6 presents the regression analysis between rigidity, stress and mental health measures. As predicted, when controlling for DS, RLS was significantly associated with poor mental health outcomes. This indicates that those who respond negatively to a lack of structure tend to evidence greater amounts of 84 depression, suicide ideation, stress, anxiety and hopelessness and lower levels of life satisfaction. As expected the regression analysis in Table 6, demonstrates that when controlling for RLS, DS was not associated with poor mental health outcomes. In fact DS was found to be significantly associated with less hopelessness. Table 6 Regression analysis between rigidity, stressful life events and mental health measures. RLS Beta R Square DS Total R Square Beta R Square DasDepression 29*** .058 -.08 .004 .066 DasStress 41*** .112 -.01 .000 .159 DasAnxiety 37*** .093 -.04 .001 .122 Suicidal Ideation 22*** .033 -.06 .003 .037 Hopelessness 25*** .044 -.15* .015 .044 .023 .08 .004 .023 Life Satisfaction -.18** Note: " R L S " indicates Response to Lack of Structure and " D S " indicates Desire for Structure. "Total R Square" is the amount of variance explained by both DS and RLS combined. *P<0.05. **P<0.01. ***P< 0.001. 6.2 J The interaction between rigidity and stressful life events We next evaluated our third hypothesis that those high in Response to Lack of Structure will respond worse stressful life events compared to those low in Response Lack of Structure. A GLM ANCOVA was used to evaluate the impact of sex, stressful life events, rigidity (DS and RLS) and the interaction between stressful life events rigidity on our measures of mental health (suicide, depression, anxiety, stress and hopelessness). All independent variables were treated as covariates and were converte 85 to Z scores in order to reduce the problem of collinearity (Aiken & West, 1991). The main variables in this study were not dichotomised. There were no median splits used in any analyses. Sex was effect coded (-1 male; 1 female). The first set of analyses focuses on stressful life events. There was significant main effects of stressful life events on all mental health measures all ps <.001 indicating that stressful life event was associated with worse mental health outcomes. We examined all the results while controlling for sex and found no differences in the conclusions. Thus sex does not confound our conclusions. A GLM ANCOVA was used to examine the relationship between RLS and mental health. The main effect results for RLS on all the mental health measures were the same as those previously reported in the regression analysis in Table 6, all ps<05. As predicted these results indicate that people who evidenced high scores on negative response to lack of structure scored higher on depression, hopelessness, suicidal ideation, anxiety and stress. Those high in RLS also reported t they experienced lower levels of life satisfaction. Most importantly, as predicted in third hypothesis, there was a significant interaction between RLS and stressful life events for depression, F (1,325) = 4.52, MSE = .27, B = .054, p= .03, anxiety, F (1,32 = 5.37, MSE = .21, B - .052, p = .02, and stress, F (1,325) = 7.79, MSE - .27, B = .07 p = .006. Figures 3.1, 3.4 and 3.5 illustrate this effect. Stressful life events were associated with greater increases in depression, anxiety and stress among those high i RLS compared to those low in RLS. Contrary to what was predicted, there was no significant interaction between RLS and stressful life events for hopelessness, life satisfaction and suicidal ideation. However, although not significant, Figures 3.2 and 3.3 illustrate a pattern of results consistent with our predictions, in that stress wa associated with greater increases in hopelessness and suicidal ideation among those high in RLS compared to those low in RLS. 86 i.__ 1- Low Negative Response to Lack of Structure •High Negative Response to Lack of Structure c 0.8 o<0 0) 0.6_a© Q 0.4 0.2 L o w hassle High hassle Figure 3.1 Interaction between RLS and Stressful Life Events for Depression. 1.25 1.2 Low Negative Response to Lack of Structure •High Negative Response to Lack of Structure co 0) g 1.15 (0 (0 © g. 1.1 o 1.05 L o w hassle High hassle Figure 3.2 Interaction between RLS and Stressful Life Events for Hopelessness. 87 6.8 6.7 6.6 C 6.5 o 6.4 © 6.3 6.2 O 6.1 3 6CO 5.9 5.8 5.7 Low Negative Response to Lack of Structure •High Negative Response to Lack of Structure L o w hassle High hassle Figure 3.3 Interaction between RLS and Stressful Life Events for Suicide Ideation. 1.2 -, 0.8 © "5 0.6 c < 0.4 - / s s * 0.2 / S * * y Low Negative Response to Lack of Structure •High Negative Response to Lack of Structure 0- L o w hassle High hassle Figure 3.4 Interaction between RLS and Stressful Life Events for Anxiety. 1.8 1.6 1.4 — 1.2 to co * 1 _ 3) 0.8 0.6 0.4 L o w hassle • Low Negative Response to Lack of Structure High Negative Response to Lack of Structure High hassle i Figure 3.5 Interaction between RLS and Stressful life Events for Stress. A GLM ANCOVA was used to test our fourth hypothesis that DS would not interact with stressful life events. As reported in the previous analyses, stressful life e a significant effect on all the mental health variables all ps <.001. The main eff results for DS and mental health are the same as the previously reported results i regression analysis in Table 6. As predicted DS was not associated with worse ment health outcomes, all ps>.05. Most importantly, as predicted in our final hypothesis GLM ANCOVA revealed that there were no significant interactions between DS and stressful life events for depression, F (1,325) =1.12, MSE = .27, B = .03, p = .29, satisfaction, F (1,325) = 1.02, MSE = .016, B = -.069, p = .31, hopelessness, F (1, = .405, MSE = .022, B = .05, p = .53, suicidal ideation, F (1,325) = .075, MSE = .35 = .088, p = .79, anxiety, F (1,325) = .448, MSE = .21, B = .017, p = .504 or stress, (1,325) = .117, MSE = .27, B = .096, p = .73. Figures 4.1 to 4.5 illustrate this e Consistent with our predictions, stressful life events was not associated with gre 89 increases depression, hopelessness, suicidal ideation, anxiety and stress among those high in D S (rigidity) compared to those low in DS. 0.9 0.8 0.7 -I c 0.6 Low Desire for Structure • High Desire for Structure o 1 °5 ^ (0 a 0.4 © Q 0.3 0.2 0.1 0 L o w hassle High hassle Figure 4.1 Interaction between D S and Stressful Life Events for Depression. 1.25 1.2 S 1-15 L o w Desire for Structure •High Desire for Structure © c CO I 1.1 © | 1.05 0.95 L o w hassle High hassle Figure 4.2 Interaction between D S and Stressful Life Events for Hopelessness. 90 6.8 6.6 | 6.4co Low Desire for Structure •High Desire for Structure © Z 6.2 co T3 I 6 CO 5.8 5.6 L o w hassle High hassle Figure 4.3 Interaction between D S and Stressful Life Events for Suicidal Ideation. 0.9 0.8 0.7 0.6 Low Desire for Structure •High Desire for Structure IT 0.5'5 5 0.4 0.3 0.2 0.1 0 L o w hassle High hassle Figure 4.4 Interaction between D S and Stressful Life Events for Anxiety. 91 1.6 1.4 1.2 - 1 — CO CO 2 0.8 - Low Desire for Structure i ngii uesne loi Structure *>» CO 0.6 0.4 0.2 nVJ L o w hassle High hassle Figure 4.5 Interaction between D S and Stressful Life Events for Stress. 6.3 Study 2 discussion Study two was designed to replicate and extend study 1. The results for study 2 confirmed our first two hypotheses concerning the distinction between the two types of cognitive rigidity DS and RLS and their relationship with mental health. As predicted in our first hypothesis, the regression analyses revealed that when controlling for DS, RLS was significantly and positively related to poorer mental health outcomes. This indicates that those who respond negatively to a lack of structure are likely to suffer more depression, hopelessness, suicidal ideation, anxiety and stress compared to those who do not respond as poorly to a lack of structure. They are also more likely to experience significantly lower levels of life satisfaction. A s expected D S did not relate to poorer mental health outcomes. In fact the regression analysis revealed that when controlling for RLS, DS was actually significantly and 92 negatively associated with less hopelessness. In contrast to RLS, having a high Desire for Structure may be advantageous in that these individuals report better mental health as reflected by their lower levels of depression, hopelessness, suicidal ideation, anxi and stress. The remaining hypotheses (H3 & H4) addressed the relationship between the two types of rigidity, stressful life events and mental heath. H3 hypothesized that stressf life events would be associated with greater increases in depression, hopelessness, suicide ideation, anxiety and stress among those high in RLS compared to those low in RLS. These hypotheses were mostly supported in that a GLM ANCOVA revealed significant interactions between RLS and stressful life events for depression, anxiety and stress. The depression results replicate those found in study 1, however the study results were not replicated for hopelessness and suicide ideation. Nonetheless taken as whole the results indicate that as predicted stressful life events would be related to poorer mental health for those high in RLS as opposed to those low in RLS. Our final hypothesis was that DS would not interact with life stress. This hypothesis was supported. A GLM ANCOVA revealed that there were no significant interactions between DS and stressful life events for depression, hopelessness, suicide ideation, anxiety and stress. This indicates that life stress is not related to increases in lowe levels of mental health in those who are high in DS. 93 CHAPTER SEVEN OVERALL DISCUSSION 94 Whereas previous research has consistently found that cognitive rigidity has negative implications for mental health (Bonner & Rich, 1987, 1988a, 1988b; Chang, 2002; Dieserud et al., 2001; Dixon et al., 1994; Dugas et al., 1998; D'Zurilla, 1986; Ellis, 1986; Nezu et al., 1989; Priester & Clum, 1993; Rickelman & Houfek, 1995; Schotte et al., 1990), the results of the present study support the proposition that not all types cognitive rigidity relate in the same manner to mental health. The results across both studies consistently supported our first two hypotheses. It was found that the response to a lack of structure was consistently related to poor mental health outcomes whereas desiring structure was not related to poor mental health. Therefore the evidence suggests that not all types of cognitive rigidity have negative implications for menta health. Support for hypothesis three was found across both studies. Stressful life events were found to have a more adverse impact upon those who were high in RLS compared to those low in RLS. Those who were high in RLS showed greater increases in depression (Study 1 & 2), suicide ideation (Study 1), hopelessness (Study 1), anxiety (Study 2) a stress (Study 2). The results for depression replicated across both studies. Although t results for hopelessness and suicidal ideation did not replicate across both studies, t pattern of results (study 2) illustrated in figures 3.2 and 3.3 were still consistent our predictions. It was found that stressful life events were associated with greater increases in hopelessness and suicidal ideation in those high in RLS compared to those low in RLS. The evidence concerning our final hypothesis that predicted that DS would not interact with stressful live events was somewhat inconsistent. In study 1 we found that DS interacted with stressful life events, whereas in study 2 there was no interaction. 95 Our predictions regarding DS, RLS and mental health were based on some of the major theoretical principals of Albert Ellis. As mentioned above, the results of the present research generally supported these predictions. There are however, a number of alternative theoretical explanations consistent with those of Ellis that may also be us to explain the findings involving rigidity and mental health. The theoretical principle from CBT (Beck, 1967, 1979) and Self-Complexity theory (SC; Linville, 1982, 1985) are such examples. Explanations as to how these theories might be used to account for the observed relationships between rigidity and mental health will be presented in section 7.1. Due to the fact that the present research measured rigidity in terms of a self-reported tendency, the results obtained provide information that is qualitatively different from the types of information obtained via measures of maximum performance. Performance measures of cognitive rigidity tend to provide information relating to one's ability to flexible in the way that problems are solved. The present research however, aimed to address the issue as to individual differences in people's motivations regarding their tendencies toward being rigid. It was decided based on a number of factors that the PNS scale was the ideal instrument with which to achieve the aims of the present research. Such factors included the fact that the PNS scale is unique in that it has tw highly correlated yet conceptually independent factors, DS and RLS. These sub-factors allow one to distinguish, using the one scale, between two different types of rigidity. One type has negative implications for mental health (RLS) and one type does not (DS). This is a significant point in light of the fact that cognitive rigidity has usua conceptualized in a somewhat negative light. The conceptualizations of previously 96 discussed self-report rigidity scales such as, Intolerance of Ambiguity, Uncertainty Orientation, Dogmatism and Authoritarianism, are some examples of this. As explained in chapter 4, the PNS scale, unlike the other scales, is free of additional factors. Whereas the alternative self-report scales are characterized by other unrelate constructs as well as their attention to simple cognitive structuring. Authoritarianism for example, also assesses conventionalism, power and toughness, authoritarian aggression and submission, all of which have little overlap with PNS. Intolerance of Ambiguity relates to one's resistance to lack of conceptual clarity independently of th need for conceptual simplicity. 7.1 Hypotheses one and two: Do RLS and DS have the same implications for mental health ? Our results consistently demonstrate that RLS and DS do in fact have different relationships with mental health. RLS has a negative relationship with mental health whereas DS does not. We will discuss the outcomes of each hypothesis, beginning with those relating to RLS. We expected that those high in RLS would report poor mental health outcomes. As expected we found that those who responded poorly to a lack of structure were those who reported feeling more depressed, hopeless and suicidal in their thinking. The aims of study 2 were to replicate this pattern of results and expand the measures of mental health to include anxiety, stress and a positive measure of mental health, life satisfaction. The identical pattern of results from study 1 was replicated in study 2, in that we found that RLS was once again related to poorer mental health outcomes. It must be noted that although significant, many of the correlations between RLS and the mental health variables particularly in study 1, were small. Thesefindings,which demonstrate a relationship between R L S and poor mental health, are consistent with several previous results concerning the PNS construct. Neuberg and Newsom (1993) found RLS to be positively correlated with neuroticism, anxiety and social anxiety. Whereas Elovainio and Kivimaki (1999) and Kivimaki et al. (1996) found that RLS was related to occupational strain symptoms such as difficulties in concentrating, depression and nervousness. It is possible that those who respond poorly to a lack of structure experience poor mental health as a result of the incompatibility between their beliefs and reality. E (Ellis & Yeager, 1989) posits that people posses numerous irrational beliefs that lead them to unnecessary levels of emotional distress. Statements of demand represent an example of an irrational belief. People who make such demands essentially believe that they must have that which they desire. They also believe that they must have control over things, or that things must be the way they want them to be in order to be conten or happy. They unyieldingly and rigidly command the way in which their world must operate. RET argues that if humans would stick to preferences or desires - "I would like this very much, but I don't have to have it" and not convert them into rigid demands, they would not have so much emotional trouble (Ellis, cited in Dryden, 1991). Hence according to RET, desiring structure will not lead to emotional disturbance. In light of the perspective offered by Ellis, it is highly possible that who respond poorly to a lack of structure may be those who do not just desire structur but those who demand that structure be present in order for them to be satisfied. The fact that their manner of response to a lack of structure is negative and that they 98 evidence poor mental health as a result of the perceived loss of structure, supports th possibility. One can also interpret the relationship between RLS and poor mental health from the perspective of Aaron Beck. The perspective offered by Beck is consistent with that of Ellis. There are however, slight differences as to where they would place their initial emphasis in appraising and treating the nature of the cognitive distortions, which then result in emotional disturbance. In explaining this relationship Ellis would place the initial emphasis on one's irrational beliefs or absolutistic demands. For example an individual high in RLS might hold the belief that reality must be structured and that t world must be a stable place. Ellis would also argue that these individuals might magnify an events "badness" and convert something that might realistically be considered a hassle into a horror (Ellis & Yeager, 1989). Beck would place his initial emphasis on automatic thoughts or distorted inferences that people may make about their ability to cope with an event. For example, the rigid person might think "This problem is too complex, I won't ever be able to solve it". Beck would initially challenge this inference. For example he might say, "where is the evidence that the problem is too complex ?" The technique he uses is the downward arrow technique, which will allow one to eventually arrive at a person's irrational or core beliefs such "I'm incompetent". Ellis argues that the initial solution should not be aimed at helpin clients give up the derivatives of their demands. He believes that in order for the cli to get better, the initial focus should be on encouraging people to recognize their absolutistic demands or must beliefs, and to help them give them up. After this is achieved, one should then tackle the major (explicit and implicit) inferences and attributions that they derive from these musts (Ellis, 1972). 99 In contrast to Ellis, Beck continues to place his initial emphasis on distorted inferences. He argues that people can make distorted inferences in the form of rigid assumptions such as overgeneralizations and all or nothing thinking. Problems arise when critical incidents occur (e.g., stressful event) and mesh with a person's distorted inferences. Once activated, these faulty assumptions produce an upsurge in negative thoughts which then lead to unpleasant emotions (Beck, 1967). Therefore those high in RLS may have poorer mental health because they are likely to possess distorted inferences as well as irrational beliefs, both of which could decrease their ability to effectively d with lack of structure. Such thoughts may lead them to experience unnecessary disturbance. SC theory by Linville (1982, 1985) offers an alternative view to that of Ellis and Beck in explaining why those high in RLS experience poor mental health. The tendency to form simple self-representations is argued to meaningfully influence mental health (Linville, 1982, 1985). Those who are high in RLS tend to form simple selfrepresentations (Neuberg & Newsom, 1993, study 3). The evidence also suggests that they tend to form simpler and less complex self-representations than those who are high in DS (Neuberg & Newsom, 1993, study 3). Linville (1982, 1985) posited a model that implicated self-complexity in extreme affective reactions to self-relevant external events. The notion of the quantity of self-aspects is central to her theory. Linville (1982, 1985) argued that when a stressful event occurs, it affects the self-aspect most pertinent to the stressor. She proposed that for a person with numerous self-aspects (high quantity/complexity) the affected self-aspect is but one of many aspects. Thus a relatively small proportion of the total self will be affected. By contrast, a stressor 100 negatively affect a greater proportion of the total self in those w h o have fewer aspects in their self-concept. There is evidence suggesting that individuals with simpler selfrepresentations are more likely to respond to self-relevant events with affective extremity (Cohen, Pane, & Smith, 1997; Kalthoff & Neimeyer, 1993; Linville, 1985, 1987; Niedenthal, Setterlund, & Wherry, 1992). Hence it is possible that those high in RLS possess simpler self-representations, which in turn prompts them to respond to certain events with the affective extremity noted in the present research, such as depression, hopelessness or suicidal ideation. The aforementioned theoretical orientations (Ellis, Beck, & Linville) are not inconsistent with each other. They merely emphasize different elements that may be used to account for the disturbance noted in high RLS individuals. For example, where Linville might place the emphasis on simple self-representations, Ellis places his emphasis on the possibility that RLS individuals are unhappy because they make absolutistic demands and possess irrational beliefs about how they think reality should be. All these approaches are compatible with each other. The views of Ellis and Linville are compatible in that Ellis believes that it is best not to make single or li evaluations of the self. In fact part of a RET intervention is to assist people to have more diverse self-representations. Thus Ellis would attempt to encourage individuals to diversify the way they see themselves. The views of Beck and Ellis are compatible as they both emphasize the importance of dysfunctional cognitions in human disturbance. Our second hypothesis predicted that people who desired structure would not experience poor mental heath outcomes. As expected, study 1 revealed that those who desired structure did not experience poor mental heath. In fact we found that they 101 actually experienced better mental health in that they reported lower levels of hopelessness, depression and suicide ideation. In our second study we extended our measures of mental health to include anxiety, stress and life satisfaction. The result study 2 replicated those for study 1 in that once again, DS was found not to be associated with poor mental health. In fact DS was found to be significantly associate with less hopelessness. The evidence is clear for hypothesis two in that DS was consistently not related to poor mental health. Although we did not hypothesize that D would lead to better mental health outcomes, we did find evidence of a negative relationship between DS and some mental health variables. However the evidence regarding a significant negative relationship was not perfectly replicated across both studies. Study 1 produced clear evidence that DS was associated with lower levels of depression, hopelessness and suicidal ideation. However, even though the majority of the correlational and regression data for the mental health variables and DS were in t negative direction in study 2, hopelessness was the only mental health variable that evidenced a significant negative relationship with DS. The results indicated that DS c be related to mental health but is not related when controlling for RLS. Thus, DS does not uniquely predict mental health when controlling for RLS. The results from both studies support our argument that not all types of rigidity relate in the same manner mental health. What was consistent was the lack of a positive relationship between DS and mental health, which was quite different from what was observed for RLS and mental health. The evidence that desiring structure is not related to poorer mental health outcomes i consistent with previous results concerning the PNS construct. Recent research found that unlike RLS, DS was not related to psychological strain symptoms such as 102 depression, nervousness and difficulty concentrating (Elovainio & Kivimaki, 1999; Kivimaki et al., 1996). Similarly, Neuberg and Newsom (1993) found that DS did not significantly relate to manifest anxiety. Commensurate with the view offered by Ellis and RET is the finding that desiring structure does not have negative implications for mental health. As mentioned earlier, according to Ellis and RET individuals fall into emotional peril because they make demands as to how reality should be. The irrational belief is evident when someone believes that they absolutely must have that which is desirable. According to Ellis (Ellis, cited in Dryden, 1991) simply desiring structure is not irrational and will not lead to emotional trouble. In fact, one of the therapeutic aims of RET therapy is "to help people strongly desire only that which they believe they completely require " (Ellis & Yeager, 1989, p. 20). 7.2 Hypotheses three and four: Does cognitive rigidity moderate the relationship between stress and mental health ? As per our third hypothesis, we expected that those high in RLS would be those who experience greater increases in poor mental health as a result of the stressful life ev that they may encounter. As expected, we found that those high in RLS responded more poorly to stressful life events compared to those low in RLS. Those in high RLS evidenced greater increases in depression (study 1 and 2), hopelessness (study 1, not study 2), suicide ideation (study 1, not study 2), anxiety (study 2) and stress (study The effects for hopelessness and suicidal ideation found in study 1 may not have replicated for two reasons. Firstly, the effect may not have been strong enough, or ther 103 simply may not be any effect. The fact that anxiety and stress were only tested in stud 2, means that one cannot speculate upon the reliability of these findings. Future research may attempt to replicate the results for anxiety and stress. The most consiste finding replicated across studies 1 and 2 and the one we will focus on in this section the relationship between stressful life events, RLS and depression. These results implicating RLS as a vulnerability factor for stress are somewhat consistent with the results obtained by Elovainio and Kivimaki (1999). These researchers found that RLS not DS was related to an elevated risk of occupational strain symptoms, only in those who worked in high complexity jobs. Elovainio and Kivimaki (1999) argue that working in a high complexity job may be particularly stress provoking due to the requirement of multi-level expertise, subjugation to time pressure performance expectations and unpredictable environments. It is pointed out here that job complexity may be equated with life stressors in that they are both situations tha have the potential to exert a negative effect upon some individuals. Those who respond poorly to a lack of structure may be more susceptible to the effects of chronic stress life events for a number of reasons, some of which are presented below. The results of the present research suggests that those high in RLS are those who tend to experience poor mental health in that they evidence more depression, hopelessness, suicide ideation, anxiety, stress and lower life satisfaction. These elements of poor mental health are commonly believed to heighten one's vulnerability to stressful experiences, resulting in the accentuation of one's initial poor mental state (Bargh & Tota, 1988; Neuberg & Newsom, 1993). Therefore, the initial experience of poor 104 mental health amongst those high in R L S m a y be a factor that could lead these individuals to be more vulnerable to the effects of life stress. Consistent with the perspectives of both Beck and Ellis is the suggestion that high RLS individuals are more affected by stress as a result of their irrational beliefs and as a result of the distorted inferences that they may make in times of stress. For example they might infer that their goals are unattainable. There is some evidence suggesting that RLS is more highly related to behavioral routinization than is DS (Neuberg & Newsom, 1993, study 2). High RLS individuals with simple structures who consistently create routines may be especially likely to perceive certain events (e.g., unplanned occurrences) as being interrupting. Elovainio and Kivimaki (1999) argue they may also perceive their goals as being unattainable. There is well-documented evidence suggesting that emotions occur when schemata, goals or activities are perceived to be interrupted or challenged (Berscheid, 1982; Fiske, 1993; Mandler, 1975; Simon, 1967). Given that high RLS individuals may be more likely to perceive events as being interrupting - given their general non-complexity and preference for routine, such individuals may be particularly emotionally reactive, experiencing both greater amounts of emotion and larger swings in the valance of their emotions (Neuberg & Newsom, 1993). It is therefore possible that those high in RLS who react in an emotionally extreme way to situations in which they feel they cannot apply simple structures may be particularly vulnerable to the effects of life stressors. The results across both studies consistently found that those high in RLS were more vulnerable to stressful life events in that they evidenced greater increases in depress One reason for this could be that in times of stress rigid people might not be able to u 105 positive information to help them cope with the situation. For example, Beck's cognitive model of depression emphasizes not only hopelessness but also a view of depressed persons as employing rigid and polarized or dichotomous thinking (Beck, 1979). Beck (1979) also argues that elements such as subtle, negative, global attributions as well as rigid self-schemata disrupt the depressive's ability to utilize positive information, all of which tend to typify a depressed state. This style of think reduces the complexity and diversity of behavior and experience. Beck might therefore argue that it is possible that those high in RLS in response to stressful life events experience greater increases in depression because their rigid self-schemata may disrupt their ability to utilize positive information. Interestingly, Neuberg and Newsom (1993) found RLS and not DS to be significantly and negatively related to cognitive complexity. Thus Neuberg and Newsom (1993) argue that to the extent that cognitive simplification is implicated in depression, one might therefore expect those high in RLS to be susceptible to depression. The results of the present research supports this assertion in that depression was significantly related to RLS not DS in both the studies conducted. It is possible that those high in RLS in response to stressful life events show greater increases in poor mental health, particularly depression, because they are not able to cope effectively with stress. Another possible reason why those high in RLS might experience difficulty dealing with stress may be because they might retrieve autobiographical memories that are too general and that are lacking in the rich, detaile information that is required to cope with stress. There is some evidence with particular reference to depression, which suggests that this might be the case. Cognitive simplification and overgeneral thinking is pivotal to cognitive theories of depression 106 (e.g., Beck, 1976) and more recently research has demonstrated that this cognitive st extends to autobiographical memory retrieval (e.g., Williams & Broadbent, 1986; Williams & Dritschel, 1988, 1992; Williams & Scott, 1988). A host of studies has shown that depressed and parasuicidal respondents perform poorly in tasks in which th goal is to retrieve a specific memory (Williams, 1992, 1996, Williams & Broadbent, 1986; Williams & Dritschel, 1988, 1992; Williams & Scott, 1988). Instead of specific memories they offer summarized and general memories. Recent research has shown that the generation of specific memories is important in order to deal appropriately with social problems (Goddard, Dritschel, & Burton, 1996; Williams, 1996; Williams & Dritschel, 1988). Goddard et al. (1996) also found that the retrieval of categoric/general memories during a social problem solving task was strongly associated with the generation of less effective solutions. Given that socia problems are more open ended than other types of problems, they require the use of specific memories. These memories are more useful as a database as they are rich in detail and offer a large number of cues from which to generate a range of potential solutions. In contrast, general memories offer a more restrictive database and functi more effectively in closed problems for which the solution is fixed and variable (Williams, 1996). Williams (1992) proposed that a categoric retrieval style inhibits effective social problem solving because the database that it makes available is restricted due to of its lack of specific information. There is also some evidence suggesting that overgenerality in autobiographical memory is a trait marker of vulnerability to depression, because memory characteristics did change as depression improved (Brittlebank, Scott, Williams, & Ferrier, 1993). There is 107 evidence suggesting that those high in RLS engage in cognitive simplification with regards to the self and in a more general sense (Neuberg & Newsom, 1993). Neuberg and Newsom (1993) also argue that their data suggest that individuals who organize information in less complex ways may posses memory structures that are less complex. It is therefore possible that subjects high in RLS, who tend to utilize less complex structures lacking in specificity, may, in response to stressful events, recall informat or memories that are overgeneral and lacking in specificity. The recollection of these types of memories may give them few cues on how to cope with the stress. Therefore these individuals are inhibited from engaging in effective social problem solving. This results in an inability to deal effectively with stress which would subsequently lead t greater increases in poor mental health, especially depression. Our final hypothesis was that DS would not interact with stressful life events. This hypothesis met with mixed findings. Unexpectedly the results of study 1 revealed that stressful life events were associated with greater increases in depression, hopelessness and suicidal ideation among those high in DS. However it should be noted that even though stress lowered the mental health of those high in DS at a faster rate, those high in DS still evidenced better mental health overall compared to low DS individuals. Study 2 generated results in the expected direction in that DS did not interact with stressful life events. Therefore it is argued that if there is any such interaction, it not appear to be particularly reliable or to have a particularly large effect. The resul were fairly consistent with this, despite the finding that the results of study 1 were n perfectly consistent. Nonetheless, due to this discrepancy, we cannot treat this as a robust finding. Perhaps future research may address and resolve this issue by replicating the study, focusing on the relationship between DS and stressful life events 108 The results obtained in our second study, which was based on a larger sample size, is somewhat consistent with previous research concerning DS and stressful events (Elovainio & Kivimaki, 1999). Elovainio and Kivimaki (1999) found that unlike RLS, DS actually decreased the risk of psychological strain at work. Being in an unstructured and complex environment appeared to make those high in DS less vulnerable to the effects of stress. These researchers argue that the desire to establish structure in one's life may actually ser a buffer or as a protective trait against psychological strain for those who may be subjected to a stressful environment. A potential explanation for these findings can be found in the argument that those high in the desire for structure may possess better coping skills with which to manage stressful environments (Kivimaki et al., 1996). Kivimaki et al. (1996) argue that the desire for structure may mobilize adaptive appraisal-focused, emotional focused or problem focused coping processes which may protect one against the level of strain. Although speculative, the implications of this explanation will be addressed in the section dealing with future research. 7.3 Other explanations for the pattern findings Stressful life events tended to be correlated with rigidity. Therefore those high in rigidity may have experienced poor mental health due to the stress that they may encounter. In other words, stressful life events may confound the relationship between rigidity and mental health. However, inconsistent with this possibility was the finding 109 that R L S was still significantly related to poor mental health even after controlling for stressful life events. This was the case across both studies. Social desirability may have been another variable that could have confounded the results obtained. Social desirability may have affected the way in which subjects responded to the measures of rigidity and mental health. Inconsistent with this view is the evidence that found no relationship between social desirability and RLS or DS (Neuberg & Newsom, 1993). 7.4 Limitations and future directions The results of the present research are significant in that they have a number of theoretical and practical implications for the construct of cognitive rigidity. The evidence gathered from the current research replicates and extends the preliminary findings that suggest that rigidity can be divided into two factors - DS and RLS, both of which have differing implications for mental health. The results of the present research are also significant in that they show that not all types of rigidity have neg implications for mental health. The evidence suggests that there is a type of rigidity does not relate to poor mental health and that in some cases, such as in the case of hopelessness may in fact be somewhat beneficial. This type of rigidity is called the desire for structure. Response to a lack of structure is the other type of rigidity tha been shown to be associated with mostly negative mental health outcomes. A primary limitation of the present research is that it employed a cross-sectional design. Due to the correlational nature of the design one cannot infer causation. Given the significance of the research findings, perhaps future research should address this 110 problem by conducting longitudinal research. For example, one can measure rigidity and mental health at time one and then after a period of time measure these variables again. Using this method one can better understand the relationship between rigidity and mental health, in terms of understanding whether rigidity precedes poor mental health. This method might bring us closer to addressing the issue of causation. Another limitation of the present research is that it did not test between the various theoretical positions that were offered as potential explanations for the observed resul Four different positions were presented in order to account for the results obtained. Th first was Ellis who would place his initial emphasis on the argument that those high in RLS make themselves miserable because they might possess irrational beliefs. For example, these people may place unrealistic, absolutist demands upon reality. The second explanation was that of Beck who would place his initial emphasis on the argument that high RLS individuals possess distorted inferences which mesh with stressful incidences which then instigate an upsurge of negative emotions. The third position was Linville's argument that those who possess simple self-representations are more likely to be negatively affected by stressors. This is due to the fact that as stre will negatively influence a greater proportion of the total self in those who have fewer aspects in their self-concept. It is therefore possible that those high in RLS experienc poorer mental health because they tend to possess simpler self-representations. The final explanation was that those who are high in RLS experience more detrimental mental health outcomes because they do not possess effective coping mechanisms. Such mechanisms are necessary to be able to solve or cope with stressful life events. It would be interesting for future research to test between these four possibilities. The following is a discussion of each one. Ill Future research could directly test Ellis's theory and measure the beliefs of those high in RLS in order to test if they actually do make absolutist demands on reality. Then one could conduct therapeutic interventions, with control groups, that might address this cognitive style and attempt to modify the belief that one must have something a particular way in order to be able to cope with a situation. Ellis, for example, would attempt to encourage individuals to stop demanding and to accept that reality may at times be unstructured. He would encourage high RLS individuals to see that this scenario would not be as catastrophic as they might believe. One would collect pre and post measurements of the participant's mental health and rigidity status in order to evaluate the efficacy of the intervention. Future research could also test Beck's theoretical explanation. For example one could measure the distorted inferences of those low and high in RLS to test which group is most likely to make such inferences. Should those high in RLS appear to make distorted inferences with great frequency, future research could address this phenomenon. For example, one could conduct an intervention whereby one group of these individuals is initially taught to make more accurate inferences and the other group would serve as a control group and would not be taught these skills. In teaching accurate inferences Beck, would start to challenge the distorted inferences, by focusin on automatic thoughts such as "I'll never be able to cope with this much chaos or lack of structure". He would then challenge the distortion via socratic questioning or via behavioral experiments. These techniques are designed to reduce the tendency to focus on negative inferences and make room for the possibility that one can cope with the things one initially thought they could not. After the intervention, one could assess i 112 the intervention decreased the frequency of distorted inferences. Future research could measure rigidity and mental health before and after the intervention in order to ascertain if the intervention was successful. The rectification of rigid thinking styles, such as irrational beliefs and distorted inferencing, may be significant, particularly in light of how important the ability to flexible is thought to be for one's mental health as well for reducing psychiatric symptomatology (e.g Dali Lama & Cutler, 1998; Dixion et al., 1994; Lerner & Clum, 1990; Linehan, Armstron, Suarez, Allmon, & Heard, 1991; Salkovskis, Atha, & Storer, 1991). Another avenue for future research could be to test whether Linville's (1982, 1985) SC theory is a useful explanation for the observed findings. Firstly, future research sho attempt to replicate the findings of Neuberg and Newsom (1993) which suggest that those high in RLS possess simple self-representations. Future research might conduct interventions and in doing so manipulate self-complexity, whereby those high in RLS are taught to recognize the various aspects of the self. At this time one would measure their current mental health and rigidity. Another group of high RLS individuals can be incorporated into the study who are not taught to consider the ways in which they could be complex. One way of encouraging individuals to appreciate their complexity could be to draft a pie chart in which they draw up a number of aspects relevant to themselves. They then could meditate on each aspect of themselves in terms of what they might mean to themselves or to their friends, colleagues and families. After a period of time research could then examine the effectiveness of the intervention by measuring the participant's mental health status. The present research revealed that high R L S individuals were shown to be more affected by stress. One reason that was proposed to account for this was that those high in RLS might have a poor ability to cope with stress. Future research could assess this explanation and investigate the actual coping mechanisms and styles of those high in RLS, in order to ascertain if they do in fact use non-effective coping styles. Although speculative, Kivimaiki et al. (1996) suggested a link between coping mechanisms and desiring structure. Thus, future research could assess whether there is in fact a positi relationship between various adaptive coping styles such as perceived coping ability and the desire for structure component of the PNS scale. Longitudinal research could explore further the relationship between RLS coping. It could begin by measuring rigidity, initial coping styles and mental health at time one. One group of high RLS individuals could receive training in coping skills and the other group could act as a control group and yet another group could receive supportive therapy, which does not specifically address coping skills. After a period of time all t subjects would retake the measures of mental health and coping in order to ascertain if coping skills training was effective. Earlier it was suggested that those who perform poorly in social problem solving tasks, and who therefore fail to cope successfully with life stress are those who tend to recal autobiographical memories that are overgeneral and non-specific. It might be interesting for future research to evaluate the types of memories that those high in RLS might recall and their capacity to engage in effective social problem solving. There is evidence suggesting that those high in RLS engage in cognitive simplification 114 regarding self-representation and the broader environment (Neuberg & Newsom, 1993). Neuberg and Newsom (1993) also argue that their data suggest that individuals who organize information in less complex ways may posses memory structures that are less complex. It is therefore possible that subjects high in RLS, who engage in cognitive simplification, may in response to stressful events, recall information or memories that are overgeneral and lacking in specificity. Future research could therefore test this hypothesis. If this is the case, perhaps an intervention could be conducted whereby one group of subjects high in RLS is taught to be more specific in encoding and retrieval of emotional events and another group acts as a control. After a period of time one could assess these groups in order to ascertain if the training received had the beneficial effect of enhancing the ability of those high in RLS to find effective alternative solutions to their problems. The present research consistently found that RLS was related to poor mental health. Future research might also attempt to replicate these results across different age group as well as with various clinical samples, such as with clinically depressed patients, or those with social anxiety or obsessive compulsive disorder. Future research might also attempt to replicate the findings regarding DS and mental health with various clinical samples as well as across other age groups such as children, adolescents and the elderly. The results of the present research indicate that desiring structure is not associated w poor mental health. The present research also found some evidence suggesting that desiring structure is consistently associated with less hopelessness, and thus may be beneficial for one's mental health. It is possible that structuring one's environment ma 115 provide a sense of direction for those w h o are hopeless. This speculation could also be explored in future research. These results lead one to wonder if there are other circumstances situations where desiring structure could be good for you. For example, past research has provided indirect evidence for this adaptivity assumption whereby those high in global PNS were found to be more likely to complete their research requirements on time than low PNS subjects (Neuberg & Newsom, 1993; Roman et al., 1995). Future research could replicate and extend the these findings by examining whether those high in DS are the ones who complete their work on time or whether it would be those high in RLS who would complete their work on time. The motivation to desire structure in one's life could lead a person to create a mean understanding the world in a less chaotic manner and to interact with the environment in a more manageable way. Future research could therefore investigate the usefulness of DS in the applied domain of health. A major problem amongst health practitioners is that some patients fail to follow prescribed medical/drug regimes (Meichenbaum & Turk, 1987). Perhaps those high in DS would be more likely to follow medication instructions and keep appointments (Thompson et al., 2001). As a global construct, PNS has been related to a number of psychological events. Such events include the formation of new stereotypes (Schaller et al., 1995), being less li to change beliefs when confronted by new information (Rice & Okun, 1994) and being more likely to form spontaneous trait influences (Moskowitz, 1993). The current research has shown that DS and RLS relate differently to mental health. Therefore it i also possible that these two types of rigidity may relate differently to the aforementioned phenomena. Future research should explore such a possibility. It is 116 possible, for example, that those w h o are less likely to change beliefs when confronted with new information may be those who are high in RLS not DS. This is a possibility, especially in light of the argument that RLS represents a qualitatively different type o rigidity than does DS. 7.5 Conclusion Past research has suggested that rigidity is associated with poor mental health. It is argued that even the term "rigidity" tends to imply something negative. The scale used in the present study has been associated to redundancy with another measure of rigidity - the RAPH (Meresko et al., 1954) and is therefore argued to be reflective of cognitive rigidity. The results of the present research indicate that there are some types of rigi that have negative implications as evident by the results regarding RLS and mental health. However, we found that there is one component of rigidity - the desire for structure - that was not related to poor mental health. In fact it was found to be associated with less hopelessness across both studies. The results of the present research encourage us to re-evaluate our negative framing of all rigidity. 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Australian and New Zealand Journal ofPsychiatry, 34, 570-578. 130 APPENDIX A INFORMATION SHEET UNIVERSITY OF W O L L O N G O N G INFORMATION SHEET - SURVEY B Culture, willingness to seek help, and dealing with life problems and stress Keiren Hynes. Terri Said, Greg Scott and Dr Joseph Ciarrochi This research project is being conducted by Ms Keiren Hynes as part of her Mpsyc (Clinical) degree, M s Terri Said as part of her DPsyc (Clinical) degree, and by M r Greg Scott as part of his P h D Psychology degree, supervised by Dr Joseph Ciarrochi in the department of psychology at the University of Wollongong. This study is a completely anonymous survey. You will first be asked to fill out a survey that consists of 20 written scenarios. Y o u will then be asked to describe h o w you would feel in response to each of these scenarios. Y o u then will be asked to complete a second survey. The second survey assesses h o w m a n y hassles/problems are in your life and h o w you typically respond to these life situations both cognitively and emotionally. W h e n you have completed both the surveys, you will place all forms in an envelope and seal it. This will ensure your confidentiality. Your participation in this research is voluntary and you are free to refuse to participate and to withdraw from the research at any time. Your refusal to participate or withdrawal from this research will not in any w a y affect your grades or your relationship with the department or the university. If you would like to discuss this research further please contact Dr. Joseph Ciarrochi on (02) 42214488. If you have any enquires regarding the conduct of the research please contact the Secretary of the University of Wollongong H u m a n Research Ethics Committee on (02) 42214457. 1 131 APPENDIX B CONSENT FORM UNIVERSITY OF W O L L O N G O N G CONSENT FORM - SURVEY B Culture, willingness to seek help, and dealing with life problems and stress Keiren Hynes. Terri Said. Greg Scott and Dr Joseph Ciarrochi This research project is being conducted by Ms Keiren Hynes as part of her Mpsyc (Clinical) degree, M s Terri Said as part of her DPsyc (Clinical) degree, and by M r Greg Scott as part of his P h D Psychology degree, supervised by D r Joseph Ciarrochi in the department of psychology at the University of Wollongong. This study is a completely anonymous survey. You will first be asked to fill out a survey that consists of 20 written scenarios. Y o u will then be asked to describe h o w you would feel in response to each of these scenarios. Y o u then will be asked to complete a second survey. The second survey assesses h o w m a n y hassles/problems are in your life and h o w you typically respond to these life situations both cognitively and emotionally. W h e n you have completed both the surveys, you will place all forms in an envelope and seal it. This will ensure your confidentiality. Y o u will also be asked to provide relevant personal information, and to generate a participant code. B y entering this code and not writing your n a m e on the survey, or in the personal information section, your confidentiality will be assured. Your participation in this research is voluntary and you are free to refuse to participate and to withdraw from the research at any time. Your refusal to participate or withdrawal from this research will not in any w a y affect your grades or your relationship with the department or the university. If you would like to discuss this research further please contact Dr. Joseph Ciarrochi on (02) 42214488. If you have any enquires regarding the conduct of the research please contact the Secretary of the University of Wollongong H u m a n Research Ethics Committee on (02) 42214457. Life M a n a g e m e n t Survey I, (Participant's name) consent to participate in the research conducted by M s Keiren Hynes, M s Terri Said, M r Greg Scott and Dr. Joseph Ciarrochi as it has been described to m e in the information sheet. I understand that the data collected will be used for article publication and conference presentations and I consent for the data to be used in that manner. Signed Date / / 2 132 APPENDIX C THE BECK DEPRESSION INVENTORY II Date: Kame: Marital Status: — Occupation: . : . Age: Sex: 1 Education: yructions: This questionnaire consists of 21 groups of statements. Please read each group of statements carefully, and ken pick out the one statement in each group that best describes the w a y you have been feeling during the past two [e^s, including today. Circle the number beside the statement you have picked. If several statements in the group gem to apply equally well, circle the highest number for that group. B e sure that you do not choose more than one jatementfor any group, including Item 16 (Changes in Sleeping Pattern) or Item 18 (Changes in Appetite). 1. Sadness 6. Punishment Feelings 0 I do not feel sad. 0 I don't feel I a m being punished. 1 I feel sad m u c h of the time. 1 I feel I m a y be punished. 2 I am sad all the time. 2 I expect to be punished. 3 I am so sad or unhappy that I can't stand it. 3 I feel I a m being punished. 2. Pessimism 7. Self-Dislike 0 I a m not discouraged about m y future. 0 I feel the same about myself as ever. 1 I feel more discouraged about m y future than I used to be. 1 I have lost confidence in myself. 2 I a m disappointed in myself. 2 I do not expect things to work out for m e . 3 I dislike myself. 3 I feel m y future is hopeless and will only get worse. 13. Past Failure 0 I do not feel like a failure. 1 I have failed more than I should have. 2 As I look back, I see a lot of failures. 3 I feel I a m a total failure as a person. 4. Loss of Pleasure 0 I get as much pleasure as I ever did from the things I enjoy. 1 I don't enjoy things as m u c h as I used to. 2 I get very litde pleasure from the things I used to enjoy. 3 I can't get any pleasure from the things I used to enjoy. Guilty Feelings 3 I don't feel particularly guilty. 8. Self-Criticalness 0 I don't criticize or blame myself more than usual. 1 I a m more critical of myself than I used to be. 2 3 I criticize myself for all of m y faults. I blame myself for everything bad that happens. 9. Suicidal Thoughts or Wishes 0 I don't have any thoughts of killing myself. 1 I have thoughts of killing myself, but I would not carry them out. 2 I would like to kill myself. 3 I would kill myself if I had the chance. 10. Crying 0 I don't cry anymore than I used to. 1 I cry more than I used to. 2 I cry over every little thing. 3 I feel like crying, but I can't. I feel guilty over m a n y things I have done or •=•' should have done. j^jfejjuite guilty most of the time. | i l % g u i l t y all of the time. Continued on Back gllIl§Subtotal Page 1 ['J*"* •^^d^CMago -Sin fSe^m^M^*• MissCopyright © 1996 by Aaron T. Beck All rights reserved. Printed in the United States of America. 0154018392 .Agitation 17. Irritability g I am no more resdess or w o u n d up than usual. 0 I a m no more irritable than usual. I I feel more resdess or w o u n d up than usual. 1 I a m more irritable than usual. . I am so resdess or asitated that it's hard to stay still I a m so resdess or agitated that I have to keep moving or doing something. 2 I a m m u c h more irritable than usual. 3 I a m irritable all the time. 3 0 I have not experienced any change in m y appetite. la M y appetite is somewhat less than usual. lb M y appetite is somewhat greater than usual. 2a M y appetite is m u c h less than before. I have lost most of m y interest in other people or things. 2b M y appetite is m u c h greater than usual. 3a I have no appetite at all. It's hard to get interested in anything. 3b I crave food all the time. !. Loss of Interest 0 I have not lost interest in other people or activities. 1 I am less interested in other people or things than before. 2 3 L indecisiveness 0 18. Changes in Appetite I make decisions about as well as ever. 19. Concentration Difficulty 0 1 I find it more difficult to m a k e decisions than usual. 2 I can concentrate as well as ever. I can't concentrate as well as usual. It's hard to keep m y mind on anything for very long. I find I can't concentrate on anything. I have much greater difficulty in making decisions than I used to. 3 I have trouble making any decisions. IWorthlessness 0 - I do not feel I a m worthless. I I don't consider myself as worthwhile and useful as I used to. 2 I feel more worthless as compared to other people. 20. Tiredness or Fatigue 0 I a m no more tired or fatigued than usual. 1 I get moretiredor fatigued more easily than usual. I a m too tired or fatigued to do a lot of the things I used to do. I a m too tired or fatigued to do most of the things I used to do. 2 3 3 I feel utteriv worthless. i. Loss of Energy 0 I have as much energy as ever. 21. Loss of Interest in Sex 0 - 1 don't have enough energy to do very much. I I have not noticed any recent change in m y interest in sex. I a m less interested in sex than I used to be. 3 I don't have enough energy to do anything. 2 I a m m u c h less interested in sex now. 3 I have lost interest in sex completely. 1 I have less energy than I used to have. [Changes in Sleeping Pattern 1 I have not experienced any change in m y sleeping pattern. LU a o < la I sleep somewhat more than usual. "> I sleep somewhat less than usual. 04 -1 I sleep a lot more than usual. jMsleep a lot less than usual. CO 3a I sleep most of the day. Jb I wake up 1-2 hours early and can't get back to sleep. CO Subtotal Page 2 * ^is form is printed with both blue and black ink. If your snot appear this way, it has been photocopied in Mo 'copyright laws. Subtotal Page 1 Total Score 133 APPENDIX D PERSONAL NEED FOR STRUCTURE SCALE Using the scale provided as a guide, write the number that best describes h o w m u c h you agree or disagree with each of the following statements according to your attitudes, beliefs, and experiences in the blank space under "Agreement Rating". It is important for you to realize that there are no "right" or "wrong" answers to these questions. People are different and w e are interested in h o w you feel. Give only one answer for each statement. Please respond to all statements: Strongly Moderately Slightly Slightly Moderately Strongly Disagree Disagree Disagree Agree Agree 1 2 3 4 5 Agree 6 Agreement Rating 1. It upsets me to go into a situation without knowing what I can expect from it 2. I'm not bothered by things that interrupt m y daily routine 3. I enjoy having a clear and structured m o d e of life 4. I like to have a place for everything and everything in it's place... 5. I find that a well-ordered life with regular hours makes m y life tedious 6. I don't like situations that are uncertain 7. I hate to change m y plans at the last minute 8. I hate to be with people w h o are unpredictable 9. Ifindthat a consistent routine enables m e to enjoy life more 10.1 enjoy the exhilaration of being in unpredictable situations 11.1 become uncomfortable w h e n the rules in a situation are not clear. 4 134 APPENDIX E THE BECK HOPELESSNESS SCALE Beck Hopelessness Scale Please circle the response that most accurately describes you. Circling T means you believe the statement is true, circling F means you believe the statement is false. Please respond to each question. 1) I look forward to the future with enthusiasm T F 2) I might as well give up because I cannot make things better for myself 3) When things go badly I am helped by knowing they cannot stay that way forever T T F F 4) I can't imagine what m y life will be like in 10 years T F 5) I have enough time to accomplish the things I most want to do T F 6) In the future, I expect to succeed in what concerns m e most T F 7) My future seems dark to me 8) I expect to get more of the good things in life than the average person 9) I just don't get the breaks, and there's no reason to believe I will in T the future F T T F F 10) M y past experiences have prepared m e well for m y future T 11) All I can see ahead of m e is unpleasantness rather than pleasantness T F 12) I don't expect to get what I really want T F 13) When I look ahead to the future, I expect I will be happier than I am now 14) Things just won't work out the way I want them to T F 15) 16) I have great faith in the future I never get what I want so it is foolish to want anything T T F F 17) It is very unlikely that I will get any real satisfaction in the future 18) The future seems vague and uncertain to m e T F 19) I can look forward to more good times than bad times T F 20) There's no use in really trying to get something I want because I probably T 13 F T T won't get it F F F 135 APPENDIX F THE DEPRESSION ANXIETY STRESS SCALE DASS Please read each statement and circle a number 0, 1, 2 or 3 which indicates h o w much the statement applied to you over the past month. There are no right or wrong answers. D o not spend too much time on any statement. The rating scale is as follows: 0 Did 1 2 3 not apply to me at all Applied to m e to some degree, or some of the time Applied to m e to a considerable degree, or a good part of the time Applied to m e very much, or most of the time I found myself getting upset by quite trivial things I was aware of dryness of m y mouth I couldn't seem to experience any positive feeling at all I experienced breathing difficulty (e.g., excessively rapid breathing, breathlessness in the absence of physical exertion) 5. I just couldn't seem to get going 0 0 0 ] ] 1 2 2 2 3 3 3 0 0 1 ] 2 2 3 3 6. 7. 8. 9. I tended to over-react to situations I had a feeling of shakiness (e.g., legs going to give w a y ) I found it difficult to relax I found myself in situations that m a d e m e so anxious I was most relieved w h e n they ended 10. I felt that I had nothing to look forward to 0 0 0 1 1 2 2 2 3 3 3 0 0 1I ]I 2 2 3 3 11.1 found myself getting upset rather easily 12. I felt that I was using a lot of nervous energy 13. I felt sad and depressed 14. I found myself getting impatient w h e n I w a s delayed in any way (e.g., lifts, traffic lights, being kept waiting) 15.1 had a feeling of faintness 0 0 0 1 I I 2 2 2 3 3 3 0 0 I I 2 2 3 3 16. I felt that I had lost interest in just about everything 17. I felt I wasn't worth m u c h as a person 18. I felt that I was rather touchy 19. I perspired noticeably (e.g., hands sweaty) in the absence of high temperatures or physical exertion 20. I felt scared without any good reason 0 0 0 I 1 I 2 2 2 3 3 3 0 0 1 1 2 2 3 3 1. 2. 3. 4. 14 The rating scale is as follows: 0 1 2 3 Did not apply to m e at all Applied to m e to some degree, or some of the time Applied to m e to a considerable degree, or a good part of the time Applied to m e very much, or most of the time 21 22 23 24 25 I felt that life wasn't worthwhile I found it hard to wind d o w n I had difficulty in swallowing I couldn't seem to get any enjoyment out of the things I did I w a s aware of the action of m y heart in the absence of physical exertion (e.g., sense of heart rate increase, heart missing a beat) 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 26. 27. 28. 29. 30. I felt down-hearted and blue I found that I was very irritable I felt I was close to panic I found it hard to calm d o w n after something upsetting m e I feared that I would be "thrown" by some trivial but unfamiliar task 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 31.1 w a s unable to become enthusiastic about anything 32. I found it difficult to tolerate interruptions to what 1 w a s doing 33. I was in a state of nervous tension 34. I felt I was pretty worthless 35. I was intolerant of anything that kept m e from getting on with what I was doing 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 36. 37. 38. 39. 40. 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 I felt terrified I could see nothing in the future to be hopeful about I felt that life was meaningless I found myself getting agitated I was worried about situations in which I might panic and make a fool of myself 41. I experienced trembling (e.g., in the hands) 42. I found it difficult to work up the initiative to do things 15 0 0 1 1 2 2 3 3 136 APPENDIX G THE SATISFACTION WITH LIFE SCALE Life Satisfaction Scale Below arefivestatements with which you may agree or disagree. Using the 1-7 scale SSET^^ES Wi , eaCh item "t "y CirC ng " *-PP-Priate nJnLrt mat statement. There are n_ _,___, an^Ta Strongly Disagree 1 In most ways m y life is close to m y ideal 2. The conditions of my life are excellent 3. I am satisfied with my life 4. So far I have gotten the important things I want in life 5. If I could live my life over, I would change almost nothing 16 e ^e 1. "f^ ^ ^ Strongly Agree 137 APPENDIX H SUICIDE IDEATION QUESTIONNAIRE Suicide Ideation Questionnaire Directions Listed below are a number of sentences about thoughts that people sometimes have. Please indicate which of these thoughts you have had in the past month. Please circle the number under the answer that best describes your o w n thoughts. B e sure circle a number for each sentence. Remember, there are no right or wrong answers. Almost e This thought was in m y mind: ery y day 1. I thought it would be better if I was not alive 2 1 I thought about killing myself. 1 Couple of times a week I had this thought About Couple About before but I never once of times once not in the had this a week a month a month past month thought 2 4 6 7 2 4 6 7 3. I thought about h o w I would kill myself 1 2 4 6 7 4. 1 2 4 6 7 1 2 4 6 7 I thought about when I would kill myself. 5. I thought about people dying 6. I thought about death 1 4 7 7. I thought about what to write in a suicide note 1 4 7 8. I thought about writing a will 1 4 7 4 7 9. I thought about telling people I plan to kill myself. 1 10. I thought that people would be happier if I were not around 1 11. I thought about how people would feel if I killed myself. 1 2 3 4 5 6 7 12. I wished I were dead 1 2 3 4 5 6 7 13. I thought about h o w easy it would be to end it all 1 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 14. I thought that killing myself would solve m y problems 1 15. I thought olhers would be better off if I was dead 1 16. I wished I had the nerve to kill myself. ' 17. I wished that I had never been b o m 1 2 4 7 2 4 7 18. I thought if I had the chance I would kill myself. 1 2 4 6 7 19. I thought about ways people kill themselves 1 2 4 6 7 20. I thought about killing myself, but would not do it 1 2 4 6 7 17 138 APPENDIX I HASSLES SCALE Hassles are irritants that can range from minor annoyances to fairly major pressures, problems, or difficulties. They can happen a few or m a n y times. DIRECTIONS: Listed in the center of the following pages are a number of ways that you can feel hassled. There are two things that y o u need to do: 1. L o o k d o w n the list of hassles. Tick (V) the hassles that you have had in the past month. If there are hassles in the list that you did N O T have in the last month, do N O T tick them. 2. L o o k at the numbers on the right of the items you ticked. Circle the number that best describes h o w S E V E R E ( B A D ) each ticked hassle was. (V) HASSLES Somewhat Moderately Extremely Severe Severe Severe 1. Misplacing or losing things 2 3 2. Troublesome neighbors 2 3 3. Health of a family member 2 3 4. Social obligations 2 3 5. Inconsiderate smokers 2 3 6. Troubling thoughts about your future 2 3 7. Thoughts about death 2 3 8. Not enough money for clothing 2 3 9. Not enough money for housing 2 3 10. Concerns about owing money 2 3 11. Concerns about getting credit 2 3 12. Concerns about money for emergencies 2 3 13. Someone owes you money 2 3 14. Financial responsibility for someone w h o doesn't live with you. 2 3 15. Cutting down on electricity, water, etc 2 3 16. Smoking too much 2 3 17. Use of alcohol 2 3 18. Personal use of drugs 2 3 19. Too many responsibilities 2 3 20. Decisions about having children 2 3 12 Somewhat Moderately Extremely Severe Severe Severe Non-Family members living in your house 1 2 3 Careforpet 1 2 3 Planning meals 1 2 3 Concerned about the meaning of life 1 2 3 Trouble relaxing 1 2 3 Trouble making decisions 1 2 3 Problems getting along with fellow workers 1 2 3 Customers or clients give you a hard time 1 2 3 H o m e maintenance (inside) 1 2 3 Concerns about job security 1 2 3 Concerns about retirement 1 2 3 Laid-off or out of work 1 2 3 Don't like current work duties 1 2 3 Don't like fellow workers 1 2 3 Not enough money for basic necessities 1 2 3 Not enough money for food 1 2 3 Too many interruptions 1 2 3 Unexpected company 1 2 3 Too much time on hands 1 2 3 Having to wait 1 2 3 Concerns about accidents 1 2 3 Being lonely 1 Not enough money for health care 1 2 3 Fear of confrontation 1 2 3 Financial security 1 2 J Silly practical mistakes 1 2 3 Inability to express yourself 1 2 3 Physical illness * 2 3 Side effects of medication 1 Concerns about medical treatment 1 1 Physical appearance 1 Fear of rejection Difficulties with getting pregnant l 1 1 Sexual problems that result from physical problems I Sexual problems other than those resulting from physical problems. 1 13 3 -* 2 3 9 . 9 3 z 3 2 3 Concerns about health in general Not seeing enough people Somewhat Severe 1 Moderately Severe 2 1 2 Friends or relatives too far away 1 3 2 3 Preparing meals 1 2 3 Wasting time j 2 3 Car Maintenance \ 2 3 Filling out forms 1 3 2 Neighborhood deterioration 1 2 3 Financing children's education 1 2 3 Problems with employees 1 2 3 Problems on job due to being man or woman 1 2 3 Declining physical abilities 1 2 3 Being exploited 1 2 3 Concerns about bodily functions 1 2 3 Rising prices of common goods 1 2 3 Not getting enough rest 1 2 3 Not getting enough sleep 1 2 3 Problems with aging parents 1 2 3 Problems with your children 1 2 3 Problems with persons younger than yourself. 1 2 3 Problems / hassles with your lover 1 2 3 Difficulties seeing or hearing 1 2 3 Overloaded with family responsibilities 1 2 3 Too many things to do 1 2 3 Unchallenging work 1 2 3 Concerns about meeting high standards 1 2 3 Financial dealings with friends or acquaintances 1 2 3 Job dissatisfaction 1 2 3 Worries about decisions to change jobs 1 2 3 Trouble with reading, writing, or spelling abilities 1 2 3 Too many meetings 1 2 3 Problems with divorce or separation 1 2 3 Trouble with arithmetic skills 1 2 3 Gossip 1 2 3 Legal problems 1 2 3 14 Somewhat Moderately Severe Severe 91. Concerns about weight 1 2 92. Not enough time to do the things you need to do 1 2 93. Television 1 2 3 94. Not enough personal energy 1 2 3 95. Concerns about inner conflicts 1 2 3 96. Feel conflicted over what to do 1 2 3 97. Regrets over past decisions 1 2 3 98. Menstrual (period) problems 1 2 3 99. Theweather 1 2 3 100. Nightmares 1 2 3 101. Concerns about getting ahead 1 2 3 102. Hassles from boss or supervisor 1 2 3 103. Difficulties with 1 2 3 104. Not enough time for family 1 2 3 105. Transportation problems 1 2 3 106. Not enough money for transportation 1 2 3 107. Not enough money for entertainment and recreation 1 2 3 Shopping 1 2 3 109. Prejudice and discrimination from others 1 2 3 110. Property, investments or taxes 1 2 3 111. Not enough time for entertainment and recreation 1 2 3 112. Yardwork or outside home maintenance 1 2 3 113. Concerns about news events 1 2 3 108. __ friends 3 114. __ Noise 1 2 3 115. __ Crime 1 2 3 116. __ Traffic 1 2 3 117. _ Pollution 1 2 3 118. Not being in a relationship 1 2 3 119. Having bad University classes and lecturers / tutors 1 2 3 120 Becoming financially independent 1 2 3 121. Problems/arguments with parents, siblings& other family members 1 2 3 122. Understanding University classes and assignments 1 2 3 15 HAVE WE MISSED ANY OF YOUR HASSLES? IF SO, WRITE THEM IN BELOW: Somewhat Moderately Extremely Severe Severe Severe 123. 1 2 3 124. 1 2 3 125. 1 2 3 ONE MORE THING: HAS THERE BEEN A CHANGE IN YOUR LIFE THAT AFFECTED HOW YOU ANSWERED THIS SCALE ? IF SO PLEASE TELL US WHAT IT WAS: 16 139 APPENDIX J DEBRIEF HANDOUT UNIVERSITY O F W O L L O N G O N G DEBRIEF H A N D O U T AIMS: We were interested in your skill at perceiving, understanding and managing your emotions. W e also measured h o w stressful your life was and h o w you typically respond to that stress. W e expected that people high in emotion skill would better be able to deal with life problems and stress. W e were also interested in h o w cognitive factors might influence such stress. It is possible that after completing the questionnaires you may feel the need to talk someone about h o w you are feeling. If you have been struggling with a personal problem, it is often helpful to talk to someone about it. Often they can help just by understanding, or they might provide some ideas about h o w you could solve your problem. If you have had suicidal thoughts or feelings lately, it is very important that you talk to someone about it. Below is a list of organisations w h o have people trained to listen and be supportive of people w h o contact them. They welcome calls from anyone wanting to talk over anything that is of concern to them. Service Phone University of Wollongong Counselling Services (Free to university staff and students) Life Line 131114 (24 hour) (Crisis intervention, ongoing problems, and referrals) 17 02- 4221 3445 140 APPENDIX K RAW DATA STUDY 1 CO en CD CD CO CO — o o d o o o q o o o o o o o o o o o o CN d CO d CO CO O O CO CM io CO lO CO CM CN T— d LO o o o o o o CM d •sr LO CM CM o o o o o o o o o O o o o o o o o o o o o o q q o o o q q o o o o o o q o o q oCM o o CM CM CM CD CM LD CM CM CM CO LO CM CN CO d CM CM CN CN CO CM CM CM CN CN CN CM CM CM CM a. o CM CN o o o o o o o o o o o q o q o o o CN CM o o o o CO LO O O CM O o o o o o q o •<fr 03 CO O O io r-: to o o o o o o o o o o o o o o o q o o a o o o q o CO -ST CO CM CO LO d ^r LO CN o o o O o o o o o o O o o o o o o o o o o q o q q q q q q o q q q o o o o o o o o o "5 £ CM CN co CN c\i CM CM c\i CM CM CN o o LO CO CO CM CM CO TS £1 o o o CO co o o o q CO •sr CO CO CN CD CM lO CM CO o o lO LO CO CN LO CO - * • CM cvi CO CD id CO CD -a o o CO 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