Add gender to the analysis in Exercise 1, and compute the mixed-design ANOVA. Request a plot of the cell means, and explain your ANOVA results in terms of the pattern in your graph. Regardless of whether the interaction is significant, follow the mixed-design ANOVA with separate one-way RM ANOVAs (i.e., simple main effects) for each gender.

Data from exercise 1

Perform an RM ANOVA to test for a significant change in anxiety level in all subjects over time (baseline, prequiz, and postquiz). Regardless of whether or not the ANOVA is significant, follow it with matched t tests (or two-level RM ANOVAs) for each pair of levels of the time factor.