A power primer.
1
New York U., US
|
Publication type: Journal Article
Publication date: 1992-01-01
scimago Q1
wos Q1
SJR: 8.696
CiteScore: 28.9
Impact factor: 19.8
ISSN: 00332909, 19391455
History and Philosophy of Science
General Psychology
Abstract
One possible reason for the continued neglect of statistical power analysis in research in the behavioral sciences is the inaccessibility of or difficulty with the standard material. A convenient, although not comprehensive, presentation of required sample sizes is provided here. Effect-size indexes and conventional values for these are given for operationally defined small, medium, and large effects. The sample sizes necessary for .80 power to detect effects at these levels are tabled for eight standard statistical tests: (a) the difference between independent means, (b) the significance of a product-moment correlation, (c) the difference between independent rs, (d) the sign test, (e) the difference between independent proportions, (f) chi-square tests for goodness of fit and contingency tables, (g) one-way analysis of variance, and (h) the significance of a multiple or multiple partial correlation.
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Metrics
31k
Total citations:
31176
Citations from 2024:
4030
(12.93%)
Cite this
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RIS |
BibTex |
MLA
Cite this
RIS
Copy
TY - JOUR
DO - 10.1037/0033-2909.112.1.155
UR - http://doi.apa.org/getdoi.cfm?doi=10.1037/0033-2909.112.1.155
TI - A power primer.
T2 - Psychological Bulletin
AU - Cohen, Jacob T.
PY - 1992
DA - 1992/01/01
PB - American Psychological Association (APA)
SP - 155-159
IS - 1
VL - 112
SN - 0033-2909
SN - 1939-1455
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{1992_Cohen,
author = {Jacob T. Cohen},
title = {A power primer.},
journal = {Psychological Bulletin},
year = {1992},
volume = {112},
publisher = {American Psychological Association (APA)},
month = {jan},
url = {http://doi.apa.org/getdoi.cfm?doi=10.1037/0033-2909.112.1.155},
number = {1},
pages = {155--159},
doi = {10.1037/0033-2909.112.1.155}
}
Cite this
MLA
Copy
Cohen, Jacob. “A power primer..” Psychological Bulletin, vol. 112, no. 1, Jan. 1992, pp. 155-159. http://doi.apa.org/getdoi.cfm?doi=10.1037/0033-2909.112.1.155.