Chapter 11 Key Issues

1. What are the advantages of expanding a simple experiment to include more levels of the independent variable? Specifically, address the benefits in terms of

- generalizing results to a range of levels of the independent variable

- construct validity

2. What is the logic behind ANOVA?

3. What is an ANOVA summary table and how do you read it?

4. Why are post hoc tests used?

5. How and why would you do a trend analysis?

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