Date: Fri, 4 Sep 1998 09:38:26 -0400
Reply-To: Jeff Mather <Jmather@HARTHOSP.ORG>
Sender: "SPSSX(r) Discussion" <SPSSX-L@UGA.CC.UGA.EDU>
From: Jeff Mather <Jmather@HARTHOSP.ORG>
Subject: one-way repeated measures
I have a simple design with 15 subjects treated with four different regimens. I know if I use GLM repeated measures ANOVA I can get the within subject differences, but I can't get post-hoc comparison's (it's only set up for between subject factors-and I have none).
To obtain multiple comparison's, I've rearranged my data so I can run a one-way ANOVA. Here, I can get post-hoc testing, as the setup now sees the regimen as a factor.
My question: I don't believe that any of the post-hoc tests offered in the simple 1-way anova are designed specifically for a paired comparison. Please let me know if I'm wrong here. What I've done is gone back to the original data set up and performed the post-hoc tests using all the combinations for a paired t-test, and manually adjusted the error rate by incorporating a bonferronni correction.
this is pretty combersum. Is my line of thinking correct here, is this the easiest way to get the post-hoc's done in a simple repeated measures design.