What Are Post Hoc Tests

Multiple Choice

What are post hoc tests?

A) They are tests, which conduct stepwise contrasts, contrasting all the different combination of groups within an ANOVA, through a comparison of each standard deviation against all the others.
B) They are tests, which conduct pairwise contrasts, examining all the different combination of groups within an ANOVA, through a comparison of each group's effect size against all the others.
C) They are tests, which conduct pairwise comparisons, contrasting all the different combination of groups within an ANOVA, through a comparison of each standard error against all the others.
D) They are tests, which conduct pairwise comparisons, comparing all the different combinations of groups within an ANOVA, through a comparison of each mean against all the others.