How to check for interaction effects in ANOVA
Hi there, this might be a rookie question. Nevertheless: I have performed a 2x2x2 between subjects experiment. I am running ANOVA's to test for main effects, but I also want to test for interaction effects. But how to do that? For example, what is the interaction effect of treatment X and Y together and/or the effect of gender? Any advice for how to solve this would be highly appreciated.
vince_faller