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Re: st: RE: confidence interval around ICC after xtmixed


From   Shehzad Ali <drshehzad_ali@yahoo.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: RE: confidence interval around ICC after xtmixed
Date   Fri, 8 Jun 2012 15:12:26 +0100 (BST)

Thanks, Richard and Paul. This is excellent!

Shehzad



----- Original Message -----
> From: "Visintainer, Paul" <Paul.Visintainer@baystatehealth.org>
> To: "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
> Cc: 
> Sent: Thursday, 7 June 2012, 19:28
> Subject: st: RE: confidence interval around ICC after xtmixed
> 
> Shehzad,
> 
> The latest update of Stata 12.1 (23may2012) included a new command called -icc-, 
> which can be run after xtmixed:
> 
> .xtmixed <model>
> .estat icc
> 
> This will give you the ICC and it's 95% CI.
> 
> -Paul
> 
> 
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu 
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Shehzad Ali
> Sent: Thursday, June 07, 2012 10:21 AM
> To: Stata List
> Subject: st: confidence interval around ICC after xtmixed
> 
> Dear listers,
> 
> I am using the following model and want to estimate confidence interval around 
> intracluster correlation (ICC). I have calculated the ICC manually (and also 
> checked against the estimate from the user written routine -xtmrho-):
> 
> xtmixed dep_var x1 x2 x3 || highest_level: || second_level:
> 
> 
> Any help on how the CI can be calculated around the ICC would be appreciated.
> 
> Many thanks
> Shehzad
> 
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