Which of the following procedures protects against increases in the experimentwise alpha by only allowing post hoc comparisons if the initial ANOVA F value is significant?
A) Contrast analysis
B) Fisher least significant difference test
C) Scheffé means comparison test
D) Tukey honestly significantly difference test

Question

Quizplus · Accepted Answer

The Fisher least significant difference test is a post hoc test that is only conducted if the initial ANOVA F test is significant, thus controlling the experimentwise alpha level by not performing unnecessary comparisons.

Which of the Following Procedures Protects Against Increases in the Experimentwise