After reading this chapter, you should be able to:
1 Delineate the factorial design from the factorial experimental design.
2 Identify the appropriate sampling method for a factorial design used in an experiment.
3 Identify and describe three types of factorial designs.
4 Distinguish between a main effect and an interaction.
5 Identify main effects and interactions in a summary table and in a graph.
6 Identify the implications of using a quasi-independent factor in a factorial design.
7 Explain how a factorial design can be used to build on previous research, control for threats to validity, and enhance the informativeness of interpretation.
8 Describe the higher-order factorial design.
9 Compute a factorial analysis of variance for the between-subjects, within-subjects, and mixed factorial design using SPSS.