A researcher finds a significant omnibus F test with J = 4. Which of the following statements is true? A) You should always do a priori comparisons before an ANOVA. B) You should always do post hoc tests after an ANOVA. C) You should always do post hoc tests to determine why H₀ was rejected. D) You should always do post hoc tests to determine why H₀ was not rejected.

Question

Quizplus · Accepted Answer

A priori comparisons are usually conducted without regard to omnibus ANOVA. Post hoc tests are conducted when H₀ is rejected in the omnibus test and J > 2.)

A Researcher Finds a Significant Omnibus F Test with J