Statistical power in physical anthropology: a technical report

A statistical power analysis of The American Journal of Physical Anthropology (Volume 44, 1976) was conducted. Twenty-five articles, which included 3,304 major significance tests, constituted the final sample. Resultant power estimates of 0.38, 0.62, and 0.81, corresponding to small, medium, and lar...

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Bibliographic Details
Published inAmerican journal of physical anthropology Vol. 49; no. 1; p. 133
Main Authors Chase, L J, Chase, L R, Tucker, R K
Format Journal Article
LanguageEnglish
Published United States 01.07.1978
Subjects
Anthropology, Physical - methods
Periodicals as Topic
Statistics as Topic
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Summary:A statistical power analysis of The American Journal of Physical Anthropology (Volume 44, 1976) was conducted. Twenty-five articles, which included 3,304 major significance tests, constituted the final sample. Resultant power estimates of 0.38, 0.62, and 0.81, corresponding to small, medium, and large population effects respectively, were obtained. Although the medium effect size estimate falls short of the recommended 0.80 level, the statistical power of physical anthropological research fares well relative to several of the social scientific fields of inquiry.
ISSN:0002-9483
DOI:10.1002/ajpa.1330490120