A social psychologist is interested in how optimism is related to life satisfaction. A sample of...

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A social psychologist is interested in how optimism is relatedto life satisfaction. A sample of individuals categorized asoptimistic were asked about past, present, and projected futuresatisfaction with their lives. Higher scores on the lifesatisfaction measure indicate more satisfaction. Below are thedata. What can the psychologist conclude with ? = 0.01?

pastpresentfuture
22
24
27
26
28
27
28
29
30
30
24
27
25
28
29


a) What is the appropriate test statistic?
---Select--- na one-way ANOVA within-subjects ANOVA two-wayANOVA

b) Compute the appropriate test statistic(s) tomake a decision about H0.
critical value =  ; test statistic =  
Decision:  ---Select--- Reject H0 Fail to reject H0

c) Compute the corresponding effect size(s) andindicate magnitude(s).
?2 =  ;  ---Select--- na trivialeffect small effect medium effect large effect

d) Make an interpretation based on theresults.

At least one of the temporal means is different on lifesatisfaction.None of the temporal means is different on lifesatisfaction.    


e) Conduct Tukey's Post Hoc Test for the followingcomparisons:
1 vs. 3: difference =  ;significant:  ---Select--- Yes No
2 vs. 3: difference =  ;significant:  ---Select--- Yes No

f) Conduct Scheffe's Post Hoc Test for thefollowing comparisons:
2 vs. 3: test statistic =  ;significant:  ---Select--- Yes No
1 vs. 3: test statistic =  ;significant:  ---Select--- Yes No

Answer & Explanation Solved by verified expert
4.4 Ratings (842 Votes)
Calculations for F Tukeys and Scheffes are at the enda The Appropriate Test Statistic is A one Way ANOVAb Critical value 6927 TheTest statitic F 378Since F test is F critical we Fail to rejectH0c SS Between SS Total 2973 7693 03865The effect is mediumd Conclusion Atleast one of the temporal means is    See Answer
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