Research Methods for the Behavioral Sciences
Multimedia Resources
Click on the following links. Please note these will open in a new window.
Video Links
t Test for Related Samples
Description: This YouTube video describes the formula for a t test with related samples (repeated measures) by using an example.
One Way Within Subjects (repeated measures) ANOVA
Description: This YouTube video describes a one way within subjects ANOVA and uses example data in SPSS to illustrate how to conduct the analysis and interpret the output.
Solomon Four Group Design
Description: A cartoon example is used in this YouTube video to illustrate the four groups utilized in the Solomon Four Group Design.
Audio Links
Podcast 11: Between and Within Design
Description: This podcast is a discussion of control subject variables through random assignment to condition and by using within-subjects design. Also discusses carryover effects, practice effects, and fatigue effects. Note that you must have access to iTunes for this podcast to play.
Podcast 5: Experimental Designs
Description: This podcast discusses posttest-only control group design, pretest/posttest control group design, Solomon Four Group design, multilevel or one-way design. Note that you must have access to iTunes for this podcast to play.
Web Resources
Counterbalancing
Description: This University of North Carolina at Chapel Hill website explains the use, integration, and results interpretation of counterbalancing to offset carryover effect in within-subjects experimental designs.
Solomon Four Group Design
Description: This website explains the uses, strengths, and drawbacks of the Solomon Four Group Design.
Threats to Internal Validity of Research
Description: This website gives a brief and easy to read overview of the various threats to validity.