Follow Up Tests in ANOVA in SPSS

This post discusses how to run follow up tests in ANOVA.

I often speak to researchers performing factorial ANOVA in SPSS. They find an interaction effect and they want to know how to understand it and decompose the effect.

Resources:

• UCLA discusses how to decompose and understand three-way interactions in SPSS.
• Levene's Guide to SPSS for Analysis of Variance has lots of explanation and examples
• Here's an example of using the LMATRIX subcommand to perform analysis of simple effects