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A post-hoc test is warranted when: the F is significant and there are more than two groups. we fail to reject the null hypothesis in
A post-hoc test is warranted when:
theFis significant and there are more than two groups.
we fail to reject the null hypothesis in an ANOVA.
we reject the null hypothesis when performing an independent-groups t test.
we have an a priori prediction about which group means will differ.
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