PSYCHOLOGY
YOU LEMON!
A CORRELATIONAL STUDY
Resources for Courses
Activity Overview
The aim of this activity is to provide students with an opportunity to take part in a fun in-class
correlational study, looking into the relationship between personality and saliva production.
Resources Required
 A lemon (that’s right, you did read correctly) or lemon juice
 Eysenck’s Personality Questionnaire Handout
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Teacher Instructions
Teaching & Learning Strategy A
Provide students with a copy of the ‘Eysenck’s Personality Questionnaire Handout’ and ask
them to complete the questionnaire individually and calculate their score, using the
information provided.
Then provided each pair of students with a lemon and ask them to work in pairs to conduct
the lemon test (see page two of the student handout). To conduct the ‘lemon test’, the
students will need to place a drop of lemon juice on their tongues and then see how many
times they can lick a piece of paper from top to bottom in 2 minutes. They should complete
this task in pairs, with one person timing and counting, while the other person completes the
lemon test. Once the students have all taken part in the lemon test, collect the results on the
whiteboard.
Finally, students can complete the follow-up research methods questions (see page three of
the student handout), to examine the relationship between personality and saliva production.
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PSYCHOLOGY
YOU LEMON!
A CORRELATIONAL STUDY
Resources for Courses
Eysenck Personality Questionnaire
Task: Read each of the statements below and decide how much you agree with each
statement, using the following scale: 1- Strongly Disagree to 5- Strongly Agree.
Score 1-5
I am a talkative person.
2
I don't enjoy meeting new people.
3
I experience mood swings - my mood goes up and down
regularly.
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1
4
I am a half glass empty type of person.
5
I am a quiet person.
6
I stop to think things over before I act.
7
Other people easily hurt me.
8
I am a lively outgoing person.
9
I let myself go and enjoy a good party.
10
I think that I should have life insurance.
11
I am level headed (sensible).
12
I am unable to sit still for a very long time.
13
I sometimes feel negative for no reason.
14
I am calm and relaxed most of the time.
15
16
I dislike being at parties and be surrounded by lots of
people.
I don't enjoy thrill-seeking activities, e.g. roller coaster
rides.
17
I am calm under stress/pressure.
18
I am easily irritated.
19
I prefer to be myself than in a large group.
20
I get bored easily when I'm by myself.
© TUTOR2U AQA A LEVEL PSYCHOLOGY
www.tutor2u.net/psychology
PSYCHOLOGY
YOU LEMON!
A CORRELATIONAL STUDY
Resources for Courses
Eysenck Personality Questionnaire – Part 2
Task: Once you have completed the questionnaire, add up your scores for the following
questions.
Questions
1, 8, 9, 12 and 20
I
2, 5, 15, 16 and 19
N
3, 4, 7, 13 and 18
S
6, 10, 11, 14 and 17
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Total Score
The Lemon Test
There is a theory that the amount of saliva that is produced during the lemon test is
correlated to a person’s personality type.
To conduct the ‘lemon test’, you will need to place a drop of lemon juice on your tongue
and then see how many times you can lick a piece of paper from top to bottom in 2 minutes.
You will complete this task in pairs, with one person timing and counting, while the other
person completes the lemon test. You will record the class scores below.
Student
Extraversion
Score
No. of Paper
Licks
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
© TUTOR2U AQA A LEVEL PSYCHOLOGY
www.tutor2u.net/psychology
PSYCHOLOGY
YOU LEMON!
A CORRELATIONAL STUDY
Resources for Courses
A Correlational Study
Once you have completed Eysenck’s Personality Questionnaire and the lemon test and
collected your data, consider the questions below.
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1. Write a directional hypothesis for your study. [Remember that the study is
correlational].
2. Using the space below, draw a scattergram of your results.
3. Using the data collected and the graph above, what can you conclude from these results.
© TUTOR2U AQA A LEVEL PSYCHOLOGY
www.tutor2u.net/psychology