John,
The answer is yes, you can obtain the same ANCOVA results in SPSS and Stata.
For example, in Stata, on the command line, type:
sysuse systolic
anova systolic drug disease age disease*age, continuous(age) partial
When you run the SPSS command suppress the intercept and build the same model as a univariate GLM
and you will get the same results.
Cheers,
Bob Yaffee
Robert A. Yaffee, Ph.D.
Research Professor
Silver School of Social Work
New York University
Senior Research Scientist,
NSF/DRU Prop# 0826983
Biosketch: http://homepages.nyu.edu/~ray1/Biosketch2008.pdf
CV: http://homepages.nyu.edu/~ray1/vita.pdf
----- Original Message -----
From: John Magill <[email protected]>
Date: Friday, July 25, 2008 11:45 am
Subject: st: ANOVA versus ANCOVA
To: [email protected]
> SPPS has a procedure called ANCOVA, while Stata's manual indicates
> that ANOVA produces both ANOVA and ANCOVA results. Will Stat produce
> the same results as SPSS on a given dataset? I am working on a
> project with two colleagues who will be using SPSS, and I want to be
> sure my results will be identical to theirs.
> Thanks,
> John
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> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
