Date: Fri, 21 May 2004 16:28:49 -0500
Reply-To: Paul R Swank <Paul.R.Swank@UTH.TMC.EDU>
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From: Paul R Swank <Paul.R.Swank@UTH.TMC.EDU>
Subject: Re: Paired ANOVA?
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Proc freq will do the extension of the McNemar to more than 2 categories,
the Bowker test. It works for any square table.
Paul R. Swank, Ph.D.
Professor, Developmental Pediatrics
UT Health Science Center at Houston
From: SAS(r) Discussion [mailto:SAS-L@LISTSERV.UGA.EDU] On Behalf Of
Sent: Friday, May 21, 2004 12:05 PM
Subject: Paired ANOVA?
I have a group of people that completed a survey both before and after an
intervention. I'm interested in seeing how certain variables changed. I
did a McNemar's test on the dichotomous variables, but my question is on the
ordinal variables that have 3 categories. So, I have a variable called
forgmed (how many days did you forget to take your meds?) which was asked
before the intervention, then I have a variable called forgmed_t1 which was
asked after the intervention. The responses are 0, 1 or 2 (0 days, 1 day or
2 or more days). Should I be using a repeated measures anova in proc glm?
If so, what is my class variable and what would my model and contrast
statements look like? Any help would be much appreciated!