Dwass-Steel-Critchlow-Fligner pairwise comparisons

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by zafrin » Fri Aug 23, 2019 8:15 am

Good Morning everyone!

I was wondering if it is necessary to adjust alpha, after using Dwass-Steel-Critchlow-Fligner pairwise comparisons in the course of a Kruskal-Wallis-Test. I couldn't find any reference in literature if DSCF is correcting alpha simultaneously or if I should use Bonferroni or something like it instead to control the familywise error rate.

I'd appreciate any clue! Thank you!
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by jonathon » Sat Aug 24, 2019 11:29 am

a quick test. we get a larger p-value when comparing only two levels, than when comparing three, so it looks like a correction is in play:

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by coledavis » Mon Aug 26, 2019 9:41 am

https://www.tandfonline.com/doi/abs/10. ... 9108830487

I believe that family-wise error rate is built in.
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