Learning Objectives

After reading this chapter, you should be able to:

1. Describe how the complexity of the two-way ANOVA differs from that of the t tests and one-way ANOVAs.

2. Define and explain the following terms: cellmain effect, and interaction.

3. Identify the assumptions and list the order of interpretation for outcomes in the two-way between-subjects ANOVA.

4. Calculate the degrees of freedom for the two-way between-subjects ANOVA and locate critical values in the F table.

5. Compute the two-way between-subjects ANOVA and interpret the results.

6. Identify when it is appropriate to compute simple main effect tests and analyze a significant interaction.

7. Compute and interpret proportion of variance for the two-way between-subjects ANOVA.

8. Summarize the results of the two-way between-subjects ANOVA in APA format.

9. Compute the two-way between-subjects ANOVA using SPSS.