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Video Clips

Intro to Factorial ANOVAs
Brief introduction to factorial ANOVAs (5:59).

Definitions and Example of Multifactor 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).

Main Effects and Interactions
Description of main effects and interactions in factorial ANOVA experiments (11:25).

Factorial ANOVA
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).

Audio Clips

Two-Way ANOVA: Interaction
Further clarifies what an interaction is and when it occurs. A PowerPoint is provided but it can be used as audio only (3:33).

Internal Validity
Lecture on threats to internal validity (16:40).

Dave Brodbeck--Factorial ANOVA
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).

Web Resources

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.

Interaction Effects
This helpful handout provides background on the analysis and interpretation of interaction effects in the ANOVA.