Hi
On 7 Apr 2001, Dianne Worth wrote:
> After several years of frustration with SAS, I am migrating
> to SPSS. I am currently working on a project in both
> packages, to ensure accuracy of results as I teach myself
> SPSS. I would like to obtain 1) the squared semi-partial
> correlation based on the sequence that predictors are entered
> into the model statement (SCORR1 in SAS) and 2) SCORR2, which
> is supposed to show the unique proportion of variance that
> the predictor explains in Y.
You can get part (semi-partial rs) in several ways in SPSS. The
ZPP option on the STATISTICS sub-command will report zero, part,
and partial correlations for each predictor in the equation.
The CHANGE and HISTORY options will show you r^2 change (= part
or semi-partial r when single predictor entered at a time).
CHANGE reports the value at each step and History reports the r^2
changes at the end. So the commands would be:
REGR /VARI = y b1 b2 b3 /STAT = DEFAU ZPP CHANGE HISTORY
/DEP = y /STEPWISE (or whatever METHOD of entry you choose to use)
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
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