PRDV420: Introduction to R Programming

This video shows the implementation of ANOVA in the packages car and afex. It probably makes sense to start using one of these packages for ANOVA analysis instead of the base-R functions aov and anova, even if you have only one factor variable to start with. The video also covers a range of post-hoc tests used to find which groups the statistically significant differences occur between. These tests are useful, but the global ANOVA test is not needed for the analyst to start using these tests – just remember to use an adjustment for multiple testing.