Help using Base SAS procedures

Is there a way to get a 'Power' column in Proc GLM?

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New Contributor
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Is there a way to get a 'Power' column in Proc GLM?

MI was looking up information on another topic when I came across some ANOVA output from SPSS:

Source  SS    df  MS    F       p        eta2     Power

X1         0.08  1   0.08  0.02  0.90  0.0012  0.05

X2         etc


The interpretation of the output was, "X1 was not signficant (p=0.90), but the study lacked sufficient power in that test (0.05)."

I thought that would be very important information to have and would like to see it in my SAS output.  I did some searching and found Proc GLMPOWER, but I don't think it is applicable.

Is there some other way to get the power associated with each variable in the ANOVA output?

(I'm using SAS 9.3)

Super User
Posts: 11,343

Re: Is there a way to get a 'Power' column in Proc GLM?

SAS has a proc power but is really intended for use in study planning. Look to see if you have the SAS Power and Sample Size Analysis installed.

Also I am somewhat leery about assumptions that may be going into the ANOVA regarding the actual sample design to get the reported power.

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