Problem 3: Compute the t-value for a repeated measures design: Null hypothesis: There is no difference in outcome scores (the DV measure) between…

You have set alpha at .05.  Based on the t-value you compute, do you accept or reject the null hypothesis?

Problem 4:

Compute the effect size, Cohen’s d, for the problem in Question 3. (See p. 361 in textbook, Chap. 11). Interpret the effect size (what does it tell you?).                    

Problem 5:

What does 95% confidence interval mean? What would it be for the study described in Question 3? Why do we compute it? (See pp. 361-362. This is also discussed in previous chapters).

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