Persistent confusion in nutrition and obesity research about the validity of classic nonparametric tests in the presence of heteroscedasticity: evidence of the problem and valid alternatives

The use of classic nonparametric tests (cNPTs), such as the Kruskal–Wallis and Mann–Whitney U tests, in the presence of unequal variance for between-group comparisons of means and medians may lead to marked increases in the rate of falsely rejecting null hypotheses and decreases in statistical power...

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Bibliografiske detaljer
Udgivet i:Am J Clin Nutr
Main Authors: Kroeger, Cynthia M, Ejima, Keisuke, Hannon, Bridget A, Halliday, Tanya M, McComb, Bryan, Teran-Garcia, Margarita, Dawson, John A, King, David B, Brown, Andrew W, Allison, David B
Format: Artigo
Sprog:Inglês
Udgivet: Oxford University Press 2021
Fag:
Statistical Commentary
Online adgang:https://ncbi.nlm.nih.gov/pmc/articles/PMC7948897/
https://ncbi.nlm.nih.gov/pubmed/33515017
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1093/ajcn/nqaa357
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