Open Peer Commentary Chow: Statistical significance
A defense of statistical power analysis
Brian R. Lashley a1 a1 Department of Psychology, University of Connecticut, Storrs, CT 06269
lashley@NECA.com
Abstract
Chow attacks statistical power analysis on theoretical
grounds. I argue that if significance testing is defensible, so is
power analysis. A number of Chow's criticisms seem to suggest
that power analysts are confused about certain fundamental issues.
I claim that few power analysts make the mistakes Chow describes.
Finally, I address Chow's claim that power analysis is irrelevant
to NHSTP because it deals with a different issue.
