PSYC 2002 A
Zeke Williams
It is most beneficial to you to write this mock midterm UNDER EXAM CONDITIONS.
This means:
• Complete the midterm in 3.0 hour(s).
• Work on your own.
• Keep your notes and textbook closed.
• Attempt every question.
After the time limit, go back over your work with a different colour or on a separate piece
of paper and try to do the questions you are unsure of. Record your ideas in the
margins to remind yourself of what you were thinking when you take it up at PASS.
The purpose of this mock exam is to give you practice answering questions in a timed
setting and to help you to gauge which aspects of the course content you know well and
which are in need of further development and review. Use this mock exam as a
learning tool in preparing for the actual exam.
Please note:
•
Come to the PASS workshop with your mock exam complete. During the
workshop you can work with other students to review your work.
•
Often, there is not enough time to review the entire exam in the PASS workshop.
Decide which questions you most want to review – the Facilitator may ask
students to vote on which questions they want to discuss in detail.
•
Facilitators do not bring copies of the mock exam to the session. Please print out
and complete the exam before you attend.
• Facilitators do not produce or distribute an answer key for mock exams.
Facilitators help students to work together to compare and assess the answers
they have. If you are not able to attend the PASS workshop, you can work alone
or with others in the class.
Good Luck writing the Mock Exam!!
Dates and locations of mock exam take-up: MondayDecember12,
9:00am-12:00pm,RoomME3165
PSYC 2002 A
Zeke Williams
Part1:MultipleChoice
1. Whichofthefollowingdescribesaparametricbutnotanon-parametric
test?
a. Doesnotrequiredatatofitaparticulardistribution
b. Usesnominaldata
c. Testshypothesesaboutpopulationparameters
d. Doesnottesthypothesesaboutpopulationparameters
2. WhatisbeingtestedinaChi-Squaretestofindependence?
a. Thedependenceofonevariableonanother
b. Therelationshipbetweenpopulationmeans
c. Variance
d. Theexistenceofmaineffectsfortwovariables
3. Whichofthefollowingrepresentstheproportionofvarianceaccountedfor
bytherelationshipbetweentwovariablesinachi-squaretestof
independence?
a. Φ
b. Φ2
c. S
d. S2
4. Whatisalinearrelationship?
a. Whenthereexistsacorrelationbetweentwovariables
b. Whenonevariablecauseschangeinanothervariable
c. Thedegreetowhichastraightlinebestdescribestherelationship
betweentwovariables
d. Causeandeffect
5.
6.
7.
8.
9.
Zeke Williams
PSYC 2002 A
Youfindthatacorrelationexistsbetweenvariablesxandy.Thismeans…
a. thereisarelationshipbetweenxandycausedbytheeffectof
anothervariable
b. xcausesaneffectony
c. ycausesaneffectonx
d. Anyoftheabovecouldbecorrect
Thesignofthepearsoncoefficientofcorrelationrepresentswhat?
a. Strength
b. Direction
c. Form(shape)
d. Alphalevel
Youobtainapearsoncoefficientofcorrelationof0.06.Thismeanthat…
a. Onevariabledecreasesastheotherincreases
b. Theeffectsizeislarge
c. Thereisalinearrelationship
d. Thereislikelynorelationshipbetweenyourvariables
Whichofthefollowingisnotawaythatcorrelationsareused?
a. Todetermineifanewtestismeasuringwhatitwasintendedto
b. Todetermineifonepopulationisgreaterthananother
c. Todetermineifameasurementproducesconsistentresults
d. Topredictonevariablebasedonthevalueofanother
Whatmighthappentoyourrvalueifyourmeasurementdoesnottakeinto
accountthefullrangeofbothofyourvariables?
a. Youcouldgetarvaluegreaterthan1
b. Youcouldgetanrvaluethatistoohigh
c. Youcouldgetanrvaluethatistoolow
d. Youprobablyaccountfortoomanyoutliers
Zeke Williams
PSYC 2002 A
10.Youobtainapearsoncoefficientofcorrelationr=0.6.Thisishowmany
timesstrongerthanacorrelationofr=0.3?
a. 1.4
b. 2
c. 4
d. 6
11.Whichofthefollowingisadescriptivestatistic?
a. Correlation
b. t-test
c. ANOVA
d. Chi-square
12.Inregressionthevariablethatisbeingpredictedisthe______variable
a. predictor
b. criterion
c. inferential
d. deterministic
13.Whatproblemwouldarisefromusingseveralt-teststocomparemultiple
groupsinsteadofusinganANOVA?
a. Thepowerofyourtestdecreases
b. Thepowerofyourtestincreasestoomuch
c. Youmultiplyyourtype1errorbythenumberoft-testsyouperform
d. Youmultiplyyourtype2errorbythenumberoft-testsyouperform
Zeke Williams
PSYC 2002 A
14.Whatisaninteraction?
a. Theeffectthatanindependentvariablehasonadependentone
b. Whenoneindependentvariableinfluencestheeffectthatanother
hasonthedependentvariable
c. Whendependentvariablesareeffectedbyeachother
d. Agoodtimewithafewclosefriends
15.Youdesignadependentsamplesstudywithmultiplelevelsofyoursingle
independentvariable.Whatstatisticaltestwouldyouuseinyourstudy?
a. Dependentmeasures2-wayANOVA
b. Dependentmeasures1-wayANOVA
c. Chi-square
d. Independentmeasures1-wayANOVA
Part2:Problems
**SHOWALLYOURWORK**
1. Youareinterestedintheeffectsofrainbowsandunicornsonhappiness.
Youcollect4random,independentsamplesofpsychstudents.Youexpose
group1torainbowsandunicorns,group2torainbows,group3tounicorns
andgroup4toneither.Yourecordhappinessreportsonareputable
happinessscaleforallgroups.Dorainbowsandunicornseffecthappiness?
Testatalpha=0.01.
Unicorns
Nounicorns
Rainbows
19,17,20,21,16,18
9,8,10,10,11,8
Norainbows
13,14,12,13,15,10
4,3,7,5,4,5
PSYC 2002 A
Zeke Williams
2. Youareinterestedintherelationshipbetweenredbullandhavingwings.
Youtaketworandom,independentsamplesandadministerredbulltoone
ofthem.Yourecordthefrequencyofwingsversusnowingsappearingin
thetwogroups.Determineifredbullandwingsarerelated.Testat
alpha=0.05.
Group1:Redbull
Group2:NoRedbull
Wings
16
25
Nowings
18
9
3. Youarecuriousabouttheeffectthatstudytimehasonexamperformance.
Yourandomlyselect3samplesof10universitystudentsandhavethem
studyfor0hours,10hoursand20hoursonatopic.Youthenadministeran
examtothesestudentsonthesametopicandrecordtheirscoresonthe
exam.Doesstudytimehaveanimpactonexamscore?Testwith
alpha=0.01usingthefollowingdata…
2
i. 0hours:Σx=570,Σ(x )=34,000
2
ii. 10hours:Σx=630,Σ(x )=40,000
2
iii. 20hours:Σx=910,Σ(x )=82,000
4. Youarecuriousifapositivecorrelationexistsbetweenbeinghappyand
doingphysicalexercise.Yourecordthenumberofhourseachof12people
exerciseinaweekandselfreportdata,onareputablehappinessscale,
representingeachindividual’shappiness.Arehappinessandhours
exercisedpositivelycorrelated?Testatalpha=0.05.
Ifsomebodyexercisedfor21hours,howhappywouldyouexpectthemtobe?
PSYC 2002 A
Zeke Williams
Happiness
HoursExercised
12
5
7
3
5
0
19
17
16
13
6
2
10
4
1
0
4
0
3
1
14
10
12
12
JGoodluckonyourfinalsandhappyholidaysJ