Date:         Fri, 11 Mar 2011 12:12:02 -0800
Reply-To:     Bruce Weaver <bruce.weaver@hotmail.com>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Bruce Weaver <bruce.weaver@hotmail.com>
Subject:      Re: r value differences
In-Reply-To:  <201103111444.p2BBlTTI032013@willow.cc.uga.edu>
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You could use James Steiger's Multicorr program, available here:

   http://www.statpower.net/Software.html



Lori wrote:
>
> In a small sample (N=13!) what is the best method to test the difference
> between correlations (r values) of related measures? So, parents reported
> on child behavior at 2 time points; the correlation for one composite over
> time = .634 (p=.02) and for the second composite = .338 (p=.258). What’s
> the best way to determine whether these correlations (for two composites
> from the same rating scale) are significantly different?
>
> It’s my understanding that the Fisher r to z transformation would not be
> appropriate because these are not two independent samples. . . but I’m
> not
> sure whether there is a better or more appropriate test.
>
> Thank you!
>
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-----
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Bruce Weaver
bweaver@lakeheadu.ca
http://sites.google.com/a/lakeheadu.ca/bweaver/

"When all else fails, RTFM."

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