ASSIGNMENT 6: ANOVA POST-HOC QUESTIONS

 

Cognitive theory suggests that college students learn best if they study later in the day (https://www.frontiersin.org/articles/10.3389/fnhum.2017.00188/full). Your task as a researcher is to test this idea. To this end, you recruit 45 undergraduate students of similar cognitive and academic ability. You then randomly allocate each student to one of three groups (Group A, Group B and Group C). All students study for the same exam over a two-week period (all students study for the same number of hours). Students in Group A study in the morning. Students in Group B study in the afternoon. Students in Group C study in the evening. At the end of the two-week period, all students sit the same exam. Scores on the exam range from 0 to 40 with higher scores indicating better exam performance. Finally, you conduct a one-way ANOVA to test if the three groups differ in their mean exam scores. You obtain the following output from the analysis:

_____________________________________________________________________________________________________________

 

Questions

 

The first question does not require you to use the SPSS output.

 

1.   
If an ANOVA has been conducted, when is it appropriate to conduct post-hoc analyses and why? (2 Marks)

 

 

The remaining questions relate to the above research scenario and/or the SPSS output.

 

2.   
Based on a visual inspection of the descriptive statistics (do not interpret the inferential statistics), which group(s) appear to perform best on the exam? Justify your response. (2 Marks)

 

 

3.   
With help from the unit materials, report the results of the analysis (including relevant post-hoc analyses if applicable) in APA format including all relevant information. (4 Marks)

 

 

4.   
Assume you are a Cognitive Psychologist. Based on the results of this study, what would be your recommendation to students studying for an exam? Justify your response. (2 Marks)

#ASSIGNMENT #ANOVA #POSTHOC #QUESTIONS

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