PSY 3234 Summer 2018, Exam 3, FormB 4 What would be a good way to compare group

Question

PSY 3234 Summer 2018, Exam 3, FormB 4 What would be a good way to compare group means for sedentary exercise in the sample of obese rats? a. Tukey's HSD b. Paired-samples t-tests c. Repeated measures ANOVA d. Correlation 5. Is it fair to conclude that, for the obese rats, vibration therapy improved BMI scores to the same extent as regular exercise? a. Yes b. No Questions 6-13 refer to the following ANOVA table from a hypothetical study 10 17.24 8.62 15.51 10 A x B 18 20 58 34 39 0.58 6. What kind of study was this? a. Between-groups b. Within-groups c. Mixed model (one between-subject factor and one within-subject factor) Unknown/Not enough information to tell 7. What are the degrees of freedom for the interaction term, A x B? b. 2 d. 4 8. How many subjects participated in this study? a.40 35 c. 34 d. 39 9. What is the mean squared error value for the interaction term, A x B? a. 18 b. 6 d. 3 10. Suppose that the p-value for the main effect of factor B is 0.01. This means that

Explanation / Answer

D.F FOR INTERACTION= 39-34-2-1= 2

SS.Q FOR B= 58-20-18-10= 10

MSQ FOR INTERACTION AXB= SSQ(INTERACTION)/D.F= 18/2= 9

SOURCE SSQ D.F M.S F CAL A 10 1 10 17.24 B 2 5 8.62 AXB 18 15.51 ERROR 20 34 0.58 TOTAL 58 39

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