Statistical power in physical anthropology: A technical report
- 1 July 1978
- journal article
- research article
- Published by Wiley in American Journal of Physical Anthropology
- Vol. 49 (1) , 133-137
- https://doi.org/10.1002/ajpa.1330490120
Abstract
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.Keywords
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