GraphPad Statistics Guide

Dunn's multiple comparisons after nonparametric ANOVA

Dunn's multiple comparisons after nonparametric ANOVA

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Dunn's multiple comparisons after nonparametric ANOVA

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If you choose nonparametric ANOVA, the Multiple Comparisons tab lets you choose:

No multiple comparisons

Compare the mean rank of each group with the mean rank of every other group

Compare the mean rank of each group to the mean rank of a control group you specify

Compare selected pairs of columns.

In all cases, you won't have any choice of method. Prism will use Dunn's method at a significance level alpha you choose (usually 0.05).