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RE: st: Intraclass correlation and binary hierarchical models


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: Intraclass correlation and binary hierarchical models
Date   Wed, 11 Nov 2009 22:42:58 +0100

<>

*************
webuse bangladesh, clear

/*Random-intercept model, 
analogous to xtlogit */ 
xtmelogit c_use urban/* 
*/  age child* || district:

nlcom (sd: exp(_b[lns1_1_1:_cons]))
*************


HTH
Martin

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Levy, Douglas E.,
Ph.D.
Sent: Mittwoch, 11. November 2009 22:34
To: statalist@hsphsun2.harvard.edu
Subject: RE: st: Intraclass correlation and binary hierarchical models

Thanks, all, for your responses.

Nevertheless, I'm still wondering if anyone is aware of how to extract or
calculate something equivalent to xtlogit's sigma_u in xtmelogit? And how
does
one get from the ereturn values in xtmelogit to the variance (or std.
deviation)
estimates listed in the random effects table?
Best,
Doug

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of
sjsamuels@gmail.com
Sent: Wednesday, November 11, 2009 3:45 PM
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: Intraclass correlation and binary hierarchical models

Though not a direct answer to your question, you might find the
following pertinent:

Comparing the contributions of groups of predictors: which outcomes
vary with hospital rather than patient characteristics? Journal of the
American Statistical Association, March, 1995 by Rosenbaum, Paul R.;
Ross, Richard N.; Silber, Jeffrey H.

Abstract: Death, adverse occurence and failure are considered as
patient outcomes and compared across hospitals. The effects generated
by differences in patient cases and hospital administration are
removed to determine the quality of care level. Logit models are
compared to examine the impact of patient and hospital
characteristics. It is shown that outcome variations are conditioned
more by patient characteristics.

-Steve

Steve Samuels
sjsamuels@gmail.com
18 Cantine's Island
Saugerties NY 12477
USA
845-246-0774
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