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| From | Maarten Buis <maartenlbuis@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: Fwd: Comparing marginal effects of two subsamples |
| Date | Mon, 24 Oct 2011 17:43:31 +0200 |
On Mon, Oct 24, 2011 at 5:33 PM, Jianhong Chen wrote: > First, I used nbreg, dv iv moderator iv*moderator, the coefficient of > interaction terms in results section is 0.81. Then, I used nbreg, dv > iv moderator iv* moderator, irr; the IRR of interaction terms in the > results section is 1.20. Both is significant (p=0.023). That will always be true. -irr- does not change the model, it only changes how the results are displayed. -- Maarten -------------------------- Maarten L. Buis Institut fuer Soziologie Universitaet Tuebingen Wilhelmstrasse 36 72074 Tuebingen Germany http://www.maartenbuis.nl -------------------------- * * 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/