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st: Comparing nested regression models


From   Tam Lin <kirtlegreen@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   st: Comparing nested regression models
Date   Wed, 2 Jul 2008 08:39:44 +0000 (GMT)

Hello

I am analysing survey data with probability weights applied.  I want to compare simple with complex logistic regression models.  Normally I would save estimates from the complex model using the 'estimates store' command, and then  consider the simple model to be nested in the complex model.  I would then run the likelihood ratio test with the 'lrtest' command.

However, I cannot do this with p-weighted data.  I could use the 'force' command but the help menu advises against this.  

Is there an alternative way to compare two logistic regression models using the p-weighted data?

Thanks.


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