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Re: st: tests for cross-model hypotheses after xtgee


From   nicola.baldini2@unibo.it
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: tests for cross-model hypotheses after xtgee
Date   Sat, 18 Oct 2008 12:52:06 +0200

-qic- (from SSC) calculates the QIC and QIC_u criteria for model selection in GEE, which is
    an extension of the widely used AIC criterion in ordinary regression.

Nicola
P.S. I'll NOT receive/read any email but the Digest.

At 02.33 16/10/2008 -0400, Federico Belotti wrote:
>Hi everyone,
>
>I ran 2 population-averaged panel data probit model (using xtgee,  
>fam(bin) link(probit)), using the same specification but using  
>overlapping data (1st --> full model, that is xtgee on 2001-2006  
>sample; and 2nd --> restricted model, that is xtgee on 2002-2006  
>sample). Now, I have to test if the 2 coefficients of the same
>covariate are equal.
>
>I know how to do this using the "suest" command but unfortunately it  
>doesn't work with xtgee...
>
>Does anyone help me??
>
>Thanks
>
>Federico 

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