## Statistical Skills

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.

Back to Chapter 12 Main Menu