Power Analysis for ANOVA Designs
This online application has been retired. The web page remains here only for historical purposes.
See the Other links below for more modern alternatives.
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
Help Me With:
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
- Power and Sample Size A variety of power calculators from HyLown Consulting LLC
- Sample size calculators A variety of sample size calculators, largely for clinical
research, from UCSF
- Russ Lenth's power and
A Java application that performs interactive power analysis for a wide variety
of designs. Select, e.g., Balanced ANOVA from the pull-down list,
then enter the design in the pop-up windown. Once you've specified the
design, you can control various parameters using sliders.
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.