You might choose to do one or more of the following to help develop students' statistical skills.
- Review the calculations for degrees of freedom (see Box 12.2, p. 344) and have students calculate the degrees of freedom for a variety of factorial studies.
- Have students practice interpreting ANOVA summary tables by presenting a summary table from a recent article and selectively whiting out certain cells (the significance levels, the MSE, the df) and have students determine the missing entry.
- Have students interpret ordinal interactions (see Fgures 12.3b, p. 373).
- Illustrate how blocking increases power.
- Have students do ANOVA by hand.
- Introduce nonparametric alternatives to ANOVA.
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