Video and Multimedia
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Brief introduction to factorial ANOVAs (5:59).
Definitions and Example of Multi-Factor Between-Subjects ANOVA
This video defines main effects, interactions, and the relationship between the two. It also discusses an example and plots the means for an interaction (10:00).
Description of main effects and interactions in factorial ANOVA experiments (11:25).
This video describes factorial ANOVA and the type of variables that are included. Includes interesting example to further illustrate the concepts (9:09).
How Do Factorial Designs Work?
This engaging video discusses a two factor research design using an interesting topic: Physical attractiveness (15:42).
Further clarifies what an interaction is and when it occurs. A powerpoint is provided but it can be used as audio only (3:33).
Lecture on threats to internal validity (16:40).
This entertaining lecture by Dave Brodbeck describes factorial ANOVA (57:13).
Dave Brodbeck—Factorial ANOVA 2
Another factorial ANOVA lecture by Dave Brodbeck (53:44).
Mixed ANOVA Using SPSS Statistics
Provides introduction to mixed ANOVA and how to use SPSS to conduct the analysis. Three study designs and examples are provided.
This website provides an explanation of a two-way ANOVA, advantages of factorial design, and practice problems.
This helpful handout provides background on the analysis and interpretation of interaction effects in the ANOVA.
Two-Way ANOVA and Interactions
Describes two-way ANOVA and interactions as well as interprets SPSS output of an example problem.