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| From | Clyde Schechter <clyde.schechter@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: Standard errors for difference-in-differences |
| Date | Wed, 19 Mar 2014 07:35:40 -0700 |
a difference in differences. He has a normally distributed interval outcome variable and a categorical predictor measured at two time points. The simplest way to do this is probably: -regress outcome i.predictor##i.time- The coefficient of the interaction term in the output will be the mean difference in differences, and the standard error he seeks will appear right next to it. Hope this helps. Clyde Schechter Department of Family & Social Medicine Albert Einstein College of Medicine Bronx, NY, USA * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/