A post hoc test is only necessary following a decision to retain the null hypothesis.

Name: A post hoc test is only necessary following a decision to retain the null hypothesis.
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Question

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A post hoc test is typically conducted after rejecting the null hypothesis. It is used to determine which specific group mean differences are significant after a significant overall effect has been determined in an ANOVA or other statistical test.

A Post Hoc Test Is Only Necessary Following a Decision