Can Dunnet`s post hoc test be used with non-normally distributed samples?

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Raid Amin

I would transform all data to normal quantiles first ( z scores), and then only would I run the ANOVA F test. Dunnett's test can also then be used, of course.

Shailendra Dwivedi

yes,it could be used ..

Dunnett's test applied to non-normal data is not valid as the resulting p-value would be incorrect.