Power Analysis for ANOVA Designs


This form runs a SAS program that calculates power or sample size needed to attain a given power for one effect in a factorial ANOVA design. The program is based on specifying Effect Size in terms of the range of treatment means, and calculating the minimum power, or maximum required sample size.

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Power Form

[Linux] & [SAS]

The calculations are performed using a SAS macro program, fpower.sas, which is somewhat more general than presented here. The web interface is written as a perl script, power.pl. This script uses the cgi-utils.pl by Lincoln Stein.

Other power analysis links

Michael Friendly
This URL: http://www.datavis.ca/online/power/
Note:This application is provided as free service. I am unable to answer e-mail concerning power analysis.