Vassar Stats has an online procedure for this at:
http://faculty.vassar.edu/lowry/rdiff.html
Rick
Dr. Rick Froman
Psychology Department
Box 3055
John Brown University
Siloam Springs, AR 72761
(479) 524-7295
[EMAIL PROTECTED]
"Pete, it's a fool that looks for logic in the chambers of the hum
Hi, Marie.
I rely on Bob Rosenthal for answering that question. It's essentially the same
thing as comparing effect sizes reported as correlations. Transform your raw rs
to Fisher z(sub)r. Z of difference is zr1 minus zr2 divided by the square root
of 1 over N1-3 plus 1 over N2-3). I use Chapte
Hi Tipsters
I have a simple correlational question. What is the formula for comparing two
significant correlation coefficients? Among one group r(44) = .37, p = .01 and
among a different group r(115) = .19, p = .04. My question is whether the
first corr is sig. greater than the second?
Marie
