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From | "Carlo Lazzaro" <carlo.lazzaro@tiscalinet.it> |
To | <statalist@hsphsun2.harvard.edu> |
Subject | R: st: Interpretation of Two-sample t test with equal variances? |
Date | Wed, 20 Mar 2013 18:11:25 +0100 |
Dave is right. Actually I have read Gwinyai's post too fast and suggested something wrong. I am currently engaged in a project concerning pre-term delivery as dependent variable, that I have mistaken as Gwinyai's y, too. Anyway, provided that this is not a homework or an exercise on logistic regression, I confirm my concerns about the limited number of predictors in Gwinyai's model. For instance, are all the women included in the model at their first delivery? Best regards, Carlo -----Messaggio originale----- Da: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Per conto di David Hoaglin Inviato: mercoledì 20 marzo 2013 17:33 A: statalist@hsphsun2.harvard.edu Oggetto: Re: st: Interpretation of Two-sample t test with equal variances? Carlo, What meaning do you assign to an interaction between mode_delivery (the outcome variable) and age (the predictor)? David Hoaglin On Wed, Mar 20, 2013 at 10:48 AM, Carlo Lazzaro <carlo.lazzaro@tiscalinet.it> wrote: > Gwinyai, > your Pseudo R2 = 0.0015 seems very low. > Are you sure that all the relevant independent variables have been > included in your model? > > You may also consider searching for interactions between mode_delivery > & age. > > Best regards, > Carlo * * 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/ * * 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/