Hi On Sun, 30 Jun 2002, Johannes Naumann wrote: > at least to my knowledge, this is not implemented in SPSS. The (german) > textbook by Bortz (1989, 3rd ed., p. 264) states, that the difference > between two Fisher-Z-transformed correlations is normally distributed, > and thus the Ho r1 - r2 = 0 can be tested using the following tests > statistic: > > z = (Z1-Z2)/sigma(Z1-Z2) > > where > > sigma(Z1-Z2) = sqrt(1/(n1- 3) + 1/(n2 - 3)).
For an English-language reference, see Quinn McNemar's old (but excellent) book (no specifics as my copy is at work). McNemar, Quinn. Psychological Statistics Fourth Edition, 1969, John Wiley & Sons. Best wishes Jim ============================================================================ James M. Clark (204) 786-9757 Department of Psychology (204) 774-4134 Fax University of Winnipeg 4L05D Winnipeg, Manitoba R3B 2E9 [EMAIL PROTECTED] CANADA http://www.uwinnipeg.ca/~clark ============================================================================ . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
