If a one-way ANOVA is statistically significant and you calculate a post hoc analysis, which of the following is the most conservative?
A)Scheffé
B)Fisher's least significant difference
C)Tukey's honestly significance difference
D)Student Newman-Keuls

Question

Quizplus · Accepted Answer

The Scheffé test is considered the most conservative post hoc analysis following a one-way ANOVA because it controls the Type I error rate across all possible comparisons, not just pairwise comparisons. This makes it less likely to find significant differences by chance, but also potentially less powerful for detecting true differences.

If a One-Way ANOVA Is Statistically Significant and You Calculate