Date: Mon, 23 Jul 2007 10:09:42 -0700 Reply-To: Paige Miller Sender: "SAS(r) Discussion" From: Paige Miller Organization: http://groups.google.com Subject: Fisher's Exact Test vs Generalized Linear Models Comments: To: sas-l@uga.edu Content-Type: text/plain; charset="iso-8859-1" I have a binary response variable as the results of a simple designed experiment. The experiment could be either a one-factor experiment with k levels of the independent variable, or it might be a two-factor experiment with k1 and k2 levels of the independent variables. In either case, I can run Fisher's exact test or I can fit a generalized linear model. In SAS, you would use PROC FREQ for Fisher's exact test, or you can fit the generalized linear model with PROC GENMOD. Fisher's exact test and the generalized linear model test do not seem to give the same results when you test to see if the factor(s) have an effect. I am hoping someone can explains the pros and cons of each test, or point me to a reference. -- Paige Miller paige\dot\miller \at\ kodak\dot\com 

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