Rather than do three pairwise analyses, it would be better to do one
repeated measures ANOVA either by GLM or mixed, to see if there are
overall differences and then perhaps follow-up with the pairwise tests.
Paul R. Swank, Ph.D.
Professor and Director of Research
Children's Learning Institute
University of Texas Health Science Center - Houston
-----Original Message-----
From: SPSSX(r) Discussion [mailto:
[hidden email]] On Behalf Of
Roy Money
Sent: Monday, July 07, 2008 9:09 AM
To:
[hidden email]
Subject: t test comparing 2 questions in one sample
I have a question about comparing two responses made at the same time by
individuals. The responses are evaluations of different work contexts
in which the individual operates: project team, work group and
consortium. The question of interest is: Is an individual's evaluation
of the work group different than their evaluation of the project team or
the consortium? - where the evaluations are based on the same scale.
Though the test is for a single sample of individuals the items to be
compared are paired responses in that they are from the same person.
I assume I should use a 'paired sample t test' since they are paired
observations from a single sample.
Is that correct?
Roy Money
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