In a 2 by 2 Mixed Factorial Anova, how would you go about conducting post hoc tests when you only have two groups. Would you conduct an independent samples t-test after the Anova to explore significant interaction effects?
SImple effects tests are what you want. Here's a site that will walk you through the ideas: http://www.discoveringstatistics.com/docs/simpleeffectsinmixedanova.pdf