Topic: Multiple Comparisons and ANOVA Assumptions

Worked Workshop on Post Hoc Tests and Assumption Checks

Unequal Variances: Welch ANOVA and Games-Howell

Tukey HSD for Balanced Designs

Tukey-Kramer Comparisons for Unequal Group Sizes

Transforming Responses to Improve ANOVA Assumptions

Selecting a Transformation and Checking Its Effect

Scheffé Adjustments for Flexible Contrasts

Responding to Strong Nonnormality and Small Samples

Reporting Adjusted Pairwise Results Clearly

Levene and Brown-Forsythe Tests for Equal Variance