POWPAL: A Program for Estimating Effect Sizes, Statistical Power, and Sample Sizes

POWPAL is a simple, interactive computer program that computes effect sizes and power estimates from summary statistics. Additionally, the program provides estimates of future sample sizes needed for various combinations of power, significance levels, and effect sizes.

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Bibliographic Details
Published in:Educational and psychological measurement 1995-10, Vol.55 (5), p.773-776
Main Authors: Gorman, Bernard S., Primavera, Louis H., Allison, David B.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Computer processing
Fundamental and applied biological sciences. Psychology
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychometrics. Statistics. Methodology
Software
Statistics
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Description
Summary:POWPAL is a simple, interactive computer program that computes effect sizes and power estimates from summary statistics. Additionally, the program provides estimates of future sample sizes needed for various combinations of power, significance levels, and effect sizes.
ISSN:0013-1644
1552-3888
DOI:10.1177/0013164495055005009