9.1 Learning Objectives

After completing this lab, you should be able to do the following using R:

• Conduct univariate ANOVA omnibus tests.
• Perform pairwise comparisons with corrections for familywise error.
• Specify and test planned contrasts.

Additionally, you should be able to do the following:

• Report the results of ANOVAs with pairwise comparisons or planned contrasts in APA style.
• Interpret the results of the aforementioned tests.