- Overview
- Lectures
- Lecture 12.1
- Lecture 12.2
- Powerpoint lecture/Chapter outline
- Bonus powerpoint lecture(password is the first nonhyphenated word on page 3 of the Instructor's Manual)

- Chapter 12 section of the student website
- Handouts
- Handout 12.1: Designing a factorial experiment
- Handout 12.2: ANOVA Summary Table Exercises
- A gentle introduction to the 2 X 2 design
- A more advanced worksheet for understanding the 2 X 2 design
- Detailed Learning Objectives for Chapter 12
- Crossword puzzle
- Completed crossword puzzle (password is the first nonhyphenated word on page 3 of the Instructor's Manual)

- Activities/Discussion Topics
- Have students participate in and analyze data from the following eyewitness testimony experiment
- Discuss or assign an interesting article describing a pair of 2 X 2 factorial experiments. Use this link to get an article summary and a handout that will help students understand the article.
- Have students read this article describing the results of several simple experiments analyzed as 2 (manipulation) X 2 (gender) designs (includes handouts to help students understand the article).
- Have students go through this tutorial (can assign as homework either before or after your presentation on interactions). Students get a certificate upon completing the tutorial.
- Go into depth on ordinal interactions by assigning this Web Appendix
- Review interactions
- Interpret the results of ANOVA summary tables
- Discuss types of factorial designs
- Statistical skills
- Have students propose a factorial experiment
- Have students present the results of a factorial experiment
- Have students conduct -- or role play -- a factorial experiment