t-tests, non-parametric tests, and large studies—a paradox of statistical practice?

<p>Abstract</p> <p>Background</p> <p>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...

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Bibliographic Details
Main Author: Fagerland Morten W
Format: Article
Language:English
Published: BMC 2012-06-01
Series:BMC Medical Research Methodology
Subjects:
Online Access:http://www.biomedcentral.com/1471-2288/12/78