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Re: st: RE: power analysis for mixed models


From   MAY BAYDOUN <mbaydoun2002@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: power analysis for mixed models
Date   Thu, 15 May 2008 08:51:07 -0700 (PDT)

Thank you so much! I will check it out.

Best,

May

--- "Lachenbruch, Peter"
<Peter.Lachenbruch@oregonstate.edu> wrote:

> There is a program OD - it's available through U
> Michigan Survey
> Research Center.  The authors are Jessica Spybrook
> (jessacah@umich.edu),
> Andres Martinez (amzzz@umich.edu) , Xiaofeng Liu
> (xliu@gwm.sc.edu ) and
> Stephen Raudenbush (sraudenb@uchicago.edu ).  
> It's based on work by Raudenbush and colleagues. 
> It's pretty easy to
> use, but you need to figure out what the 'right'
> values of some
> parameters are.
> 
> 
> Tony
> 
> Peter A. Lachenbruch
> Department of Public Health
> Oregon State University
> Corvallis, OR 97330
> Phone: 541-737-3832
> FAX: 541-737-4001
> 
> 
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] On
> Behalf Of MAY BAYDOUN
> Sent: Thursday, May 15, 2008 8:31 AM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: power analysis for mixed models
> 
> Hello,
> 
> I was wondering if there is an easy way to calculate
> power for mixed models in Stata using a similar
> method
> as the one for stpower. I know there is a command
> for
> repeated measures but not for xtmixed or xtreg.
> Thank
> you,
> 
> May
> 
> May Baydoun, PhD in Epidemiology (UNC-Chapel Hill) 
> Staff Scientist,
> National Institute on Aging, NIH/IRP,  Biomedical
> Research Center,
> Baltimore, MD
> 
> 
>       
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May Baydoun, PhD in Epidemiology (UNC-Chapel Hill)  Staff Scientist,  National Institute on Aging, NIH/IRP,  Biomedical Research Center,  Baltimore, MD


      
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