| Date: | Wed, 10 Sep 1997 10:14:34 -0400 |
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| Reply-To: | Abdalla Abdel Ghafour Al Smadi <aa118585@OAK.CATS.OHIOU.EDU> |
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| Sender: | "SPSSX(r) Discussion" <SPSSX-L@UGA.CC.UGA.EDU> |
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| From: | Abdalla Abdel Ghafour Al Smadi <aa118585@OAK.CATS.OHIOU.EDU> |
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| Subject: | equating question |
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| Content-Type: | TEXT/PLAIN; charset=US-ASCII |
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Hi everybody:
I am doing a differential item functioning(DIF) study. I know that if
two forms of a test gevin to two samples of people we need to equate
scores of one form to be on the same scale as the other form.
My question:
What if we have the same group of items gevin to two groups of people, do
we still need to equate before analizing for DIF ???
thanks abdalla
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