PSY7065 Quantitative Data AnalysisMultiple Linear Regression Coursework
A researcher studied different factors influencing anxiety about statistics. He used
the average heart rate (in beats/min) in the 10 minutes prior to a statistics test as a
measure of Statistics Anxiety. For each participant, the researcher also noted several
factors that he thought might influence statistics anxiety: Age (in years),
mathematics mark at GCSE (GCSE, mark ranging from 0 to 100), and whether before
starting the course they realised quantitative statistics was a substantial part of their
Psychology degree (Realise; yes=2, no=1), and Gender (Male=1, Female = 2). The
data for 136 participants is presented in the accompanying file
PSY7065_MultipleLinearRegression_Portfolio2022.sav
1) Your aim is to use a linear regression model to examine the relationship between
Statistics Anxiety (as the criterion variable) and multiple predictor variables: GSCE
mark (GSCE), Age, Gender, and whether they realised statistics was part of the
course (Realise). Outline the assumptions of this regression model and discuss
whether or not each of these assumptions has been violated. Include the SPSS
output that you feel is necessary to support your claims in an Appendix.
2) Conduct the linear regression analysis and report and interpret the outcome.
There is no need to include any tables or figures from SPSS.
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The data has been created for assessment purposes; it may not reflect reality.
In your submitted document, avoid simply cutting and pasting prolifically from SPSS
output, choose your evidence to submit carefully. The only output that can be
included concerns the data summary and/or the assumption checks (although, when
possible, reporting statistical values within the text is preferred); if this concerns
figures, include appropriate captions.
Submit this coursework together with the other two assignments in a single portfolio
(i.e., a single file). This section should be word processed, written in full paragraphs,
and should not be longer than 3 sides of A4.
Report findings in the appropriate statistical format.
Cite references to support your answers where relevant. This only concerns
references about statistics, not about the fictive topic.
Interpret & explain your results; display understanding of the statistical principles
underlying the test.
Do not copy out lecture notes or material from the internet!
All coursework will be checked for plagiarism.
PSY7065 Quantitative Data Analysis 1
ANOVA Coursework
A researcher studied the effectiveness of a new virtual reality-based treatment for
Agoraphobia (fear of open spaces). She asked people who suffered from this phobia to
participate in her study. The researcher was interested in the direct effect of the treatment
as well as its longer-term effects; she thus measured agoraphobia prior to (PreTest), directly
after (PostTest) and 1 week after the virtual reality treatment (OneWeek). The degree of
experienced agoraphobia was quantified using the average heart rate measured in a real-life
test on the university main square (higher means more fear).
Two variants of the virtual reality treatment were considered, and participants were divided
into two groups to explore the effects of these variants: one involving participants standing
in different types of open spaces (level called Standing) and one in which they were moving
around in these spaces (level called Moving). In the data file 1 = Standing and 2 = Moving.
The data for 20 participants is presented in the accompanying file
PSY7065_ANOVA_Portfolio2022.sav
1) Conduct and report the appropriate analysis, including post-hoc analyses, after
confirming that its assumptions have not been violated (i.e., also report evidence of the
associated checks).
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The data has been created for assessment purposes; it may not reflect reality.
In your submitted document, avoid simply cutting and pasting prolifically from SPSS
output, choose your evidence to submit carefully. The only output that can be
included concerns the data summary and/or the assumption checks (although, when
possible, reporting statistical values within the text is preferred); for any figures,
include appropriate captions.
Submit this coursework together with the other two assignments in a single portfolio
(i.e., a single file). This section should be word processed, written in full paragraphs,
and should not be longer than 3 sides of A4.
Report findings in the appropriate statistical format.
Cite references to support your answers where relevant. This only concerns
references about statistics, not about the fictive topic.
Interpret and explain your results; display understanding of the statistical principles
underlying the test.
Do not copy out lecture notes or material from the internet!
All coursework will be checked for plagiarism.
PSY7065 Quantitative Data Analysis 1
Logistic Regression Coursework
A researcher studied decision making in childhood using a variant of the marshmallow test.
In the regular marshmallow test (Mischel & Ebbesen, 1970), children are given a
marshmallow on a plate and promised two marshmallows in reward for not eating the
marshmallow while the experimenter is out of the room (For an example, see:
https://www.youtube.com/watch?v=QX_oy9614HQ.)
The variant studied here concerned a shared reward. In this ‘Shared-Reward’ variant
children were told beforehand that one of the two promised marshmallows had to be
shared with a friend. They thus only got to keep one marshmallow.
The researcher registered participants’ decisions (Wait=0 or Eat=1) in this scenario and also
recorded several other factors thought to be relevant:
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Gender (Male=0, Female=1)
Self-control (0-100, measured through a validated questionnaire; higher means more
self-control)
Ability to have fun (0-30, measured through a questionnaire, completed by the
child’s carers; higher means more ability to have fun).
The data for 194 participants is presented in the accompanying file
PSY7065_LogisticRegression_Portfolio2022.sav. Conduct a logistic regression analyses to
examine the relationship between decisions as a function Gender, Self-control, and Ability
to have fun. Provide the motivation that you are allowed to conduct the analyses (i.e.,
ensure the assumptions are met) and conduct the analyses. Report information on the
model fit, amount of variance explained, which individual variables act as significant
predictors and the relationship between the individual variables and whether or not they
increase the odds of the child deciding to eat the marshmallow.
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The data has been created for assessment purposes; it may not reflect reality.
In your submitted document, avoid simply cutting and pasting prolifically from SPSS
output, choose your evidence to submit carefully. The only output that can be
included concerns the data summary and/or the assumption checks (although, when
possible, reporting statistical values within the text is preferred); for any figures,
include appropriate captions.
Submit this coursework together with the other two assignments in a single portfolio
(i.e., a single file). This section should be word processed, written in full paragraphs,
and should not be longer than 3 sides of A4.
Report findings in the appropriate statistical format.
Cite references to support your answers where relevant. This only concerns
references about statistics, not about the fictive topic.
Interpret and explain your results; display understanding of the statistical principles
underlying the test.
Do not copy out lecture notes or material from the internet!
PSY7065 Quantitative Data Analysis 1
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All coursework will be checked for plagiarism.
References
Mischel, W., & Ebbesen, E. B. (1970). Attention in delay of gratification. Journal of Personality and
Social Psychology, 16(2), 329–337. https://doi.org/10.1037/h0029815
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