| Date: | Wed, 14 Jul 2004 09:39:05 -0700 |
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| Reply-To: | e dunbar <edunbar@ucla.edu> |
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| Sender: | "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU> |
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| From: | e dunbar <edunbar@ucla.edu> |
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| Subject: | Re: Comparing Independent Regression Coefficients |
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| In-Reply-To: | <001001c469a6$1b1512b0$5300a8c0@NOTEBOOK> |
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| Content-Type: | text/plain; charset="us-ascii"; format=flowed |
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I just did this in a study.
I am interested in the thoughts of folks on this list about whether it is
better to use
standardized or unstandardized betas in computing the comparisons?
yours,
ed dunbar
At 06:26 AM 7/14/2004, you wrote:
>From: Hector Maletta <hmaletta@fibertel.com.ar>
>Subject: Re: Comparing Independent Regression Coefficients
>To: SPSSX-L@LISTSERV.UGA.EDU
>
>I do not remember whether there is or not a way to compare the coefficients
>coming from different regressions. However, one different possibility is
>including in the regression a dummy variable to identify the two groups
>(coded 0 for cases in group 1 and 1 for cases in group 2) and then evaluate
>the significance of the beta coefficient for the dummy variable. This is not
>strictly equivalent but may be more illuminating.
>
>Hector
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