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st: Osius-Rojek, Stukel's goodness of fit tests for Logistic Regression


From   brian.h.nathanson@att.net
To   statalist@hsphsun2.harvard.edu
Subject   st: Osius-Rojek, Stukel's goodness of fit tests for Logistic Regression
Date   Sun, 10 Oct 2004 08:18:51 +0000

Dear Colleagues:

    Does anyone know how to implement an Osius-Rojek goodness of fit test (it is a normal approximation to the Pearson Chi-square statistic) for a logistic regression model using Stata commands?  How about Stukel's test? I'm constructing a logistic regression model on a very large database and the Hosmer Lemeshow statistic indicates that the model does not "fit", however this is in part due to the sample size of the model. Hosmer and Lemeshow in their textbook, Applied Logistic Regression, recommend two other goodness of fit tests to go with their statistic, Osius-Rojek and Stukel.  Any help that you can give me in implementing either of these tests, or any advice on using Stata to assess the goodness of fit in a logistic regression model when the sample size is large would be greatly appreciated.  Thanks!

   -Brian




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