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Topic: Test on Difference in Mean Correlations
Replies: 2   Last Post: Sep 7, 2012 2:40 AM

 Messages: [ Previous | Next ]
 R Posts: 31 Registered: 10/8/10
Test on Difference in Mean Correlations
Posted: Sep 5, 2012 10:08 PM

Hello:

Is there a way to perform a formal statistical test on whether two
mean correlations [calculated from data from the same sample] are
significantly different from each other:

H0: mean[corr(1,2), (corr 3,4)] = mean[corr(5,6), (corr 7,8)]

I realize that since correlations are not additive, in order to
calculate the mean correlations one would likely use the Fisher's z
transformation or perhaps use squared correlations, but I'm stuck
after this point.

I realize this is a peculiar question--just curious if hypothetically
this would be possible, and if so, how to do it.

Thanks!

Date Subject Author
9/5/12 R
9/6/12 David Jones
9/7/12 Richard Ulrich