| Date: | Fri, 25 Mar 2005 14:37:25 -0500 |
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| Reply-To: | Jeff Stuewig <jstuewig@gmu.edu> |
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| Sender: | "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU> |
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| From: | Jeff Stuewig <jstuewig@gmu.edu> |
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| Subject: | computing mediated effect and sobel |
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| In-Reply-To: | <42445FA9.7060508@jura.uni-hamburg.de> |
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| Content-type: | text/plain; charset=us-ascii; format=flowed |
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When computing the mediated effect (a*b or c - c` ) can one use
either the unstandardized b weight or the standardized beta? Additionally,
can you use either for computing the sobel test? I was always taught to
use the unstandardized b weight and its corresponding standard error but in
Howell's book "Statistical Methods for Psychology" he uses the standardized
beta and its standard error. Are these equivalent? Thanks.
Jeff
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