t-tests, non-parametric tests, and large studies—a paradox of statistical practice?
نویسندگان
چکیده
منابع مشابه
t-tests, non-parametric tests, and large studies—a paradox of statistical practice?
BACKGROUND During the last 30 years, the median sample size of research studies published in high-impact medical journals has increased manyfold, while the use of non-parametric tests has increased at the expense of t-tests. This paper explores this paradoxical practice and illustrates its consequences. METHODS A simulation study is used to compare the rejection rates of the Wilcoxon-Mann-Whi...
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ژورنال
عنوان ژورنال: BMC Medical Research Methodology
سال: 2012
ISSN: 1471-2288
DOI: 10.1186/1471-2288-12-78