2. A Cognitive Psychologist would like to evaluate whether the presence of distraction in your surroundings affects inhibitory control ability (i.e., the ability to control and suppress goal- irrelevant stimuli/information), and whether this effect depends on caffeine intake. Participants either consumed caffeine or no caffeine prior to arriving at the study (as specified by the Cognitive Psychologist researcher), and then completed an inhibitory control task when they arrived at the lab under the presence of distraction (e.g., while a nearby phone kept ringing) or no distraction. To test her hypothesis, she randomly assigns 48 participants to one of four different conditions: caffeine consumed + distraction present, caffeine consumed + no distraction present, no caffeine consumed + distraction present, no caffeine consumed + no distraction present. The number of errors on an inhibitory control test was measured (with more errors indicating poor inhibitory control). Use alpha = .05
See InhibitoryControl.csv file in eClass to access the data for this question.
a.) What are the factor(s) and dependent variable?
b.) Using jamovi, test the assumptions for the statistical test you have selected based on the scenario. Are the assumptions met based on this evidence? Please briefly explain what evidence led you to these conclusions.
c.) Write-up the results of your analysis in APA format. Adopt the same format as what was outlined in the lecture/tutorial slides, using a two-paragraph format.
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