When using the Scheffé post hoc test for a repeated-measures ANOVA,the denominator for the F ratio should be _____.
A)MSerror
B)MSbetween subjects
C)MSwithin
D)MSbetween treatment

Question

Quizplus · Accepted Answer

The Scheffé post hoc test for a repeated-measures ANOVA uses the mean square error (MSerror) as the denominator for the F ratio. This is because the MSerror reflects the variability within the groups, which is what you want to control for when comparing group means in a post hoc analysis following ANOVA.

When Using the Scheffé Post Hoc Test for a Repeated-Measures