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st: Repeated measures with no between-participants vars?


From   amiawake@psych.stanford.edu
To   statalist@hsphsun2.harvard.edu
Subject   st: Repeated measures with no between-participants vars?
Date   Mon, 5 Jun 2006 22:50:41 -0700 (PDT)

Hi everyone, (newbie alert)

I am trying to assess the way in which participants' evaluations of 3
different stimuli change over time, as indicated in a series of
measurements. I am interested in checking whether the pattern of changes
in those evaluations is different for the different stimuli.

In other words, the two within-participants variables are (1) type of
stimulus, and (2) time of measurement. There are no between-participant
variables.

This seems like a simple task, but I haven't been able to get Stata to do
this for me. I tried a number of variations on the repeated ANOVA command,
but no luck. I would greatly appreciate any advice.

Thanks in advance, enjoy the meanwhile,

- Eran
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