Psyc 303/304 Fall 2014
Final Exam
Statistics Component
Instructions: For each problem, perform the appropriate statistical test and report the findings (Do NOT simply report –“Reject or Fail to Reject Null Hypothesis”). Write a minResults section for each problem.
Include descriptive stats – Mean and SEM. Also, BE SURE to FIRST describe the type of research design being used along with the IV and DV. Show all work for full credit. Possible Stats: ttest for independent samples, ttest for dependent samples, regression analysis, ANOVA (oneway BS or twoway BS or mixed) Use α = 0.05 for all tests.
Prestress – 12, 14, 10, 14, 14, 17, 16, 11, 12, 16
Poststress 11, 14, 8, 15, 11, 14, 16, 9, 11, 13
depression from the number of social events attended per week for a sample of Ramapo College students. Determine if there is a relationship between depression and social events attended. Is this relationship significant?
Student 
Social Events Attended/Week 
Depression Score 
1 
0 
15 
2 
2 
3 
3 
2 
12 
4 
1 
11 
5 
3 
5 
6 
1 
8 
7 
2 
15 
8 
0 
13 
9 
3 
2 
10 
3 
4 
11 
4 
2 
12 
1 
8 
13 
1 
10 
14 
1 
12 
15 
2 
8 
Format A: 21 33 40 37 22 25 39 28 34 25 27
Format B: 38 32 56 58 45 46 57 49 43 41 55
TIME
1 
2 
3 

18 
15 
11 

18 
17 
15 

15 
18 
14 

17 
14 
15 

19 
14 
10 





20 
18 
16 

20 
17 
16 

18 
20 
18 

15 
15 
12 

17 
15 
15 
How many ttests would need to be used to analyze this data set?
What is the problem with this approach?
For the TakeHome part… simply answer the questions (AC)
A.) Provide IV, DV and Research Design. Provide a brief rationale for
your choice of design.
B). In terms of Statistical Power, why is a withinsubjects design
generally more powerful than a betweensubjects design?
C). Regardless of research design, what is the BEST method to
Increase statistical power and why is power important?
Extra Credit – worth 5% of Stats Final
D). Using the data from the RPI experiment perform the appropriate
analysis (with PostHoc tests, if necessary) on SPSS.
Subject  Mathematics 
Due By (Pacific Time)  12/11/2014 01:00 pm 
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