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RE: st: Multilvel Model Power Estimation for non-inferiority testing?


From   "Lachenbruch, Peter" <Peter.Lachenbruch@oregonstate.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: Multilvel Model Power Estimation for non-inferiority testing?
Date   Mon, 11 Feb 2008 13:32:48 -0800

There is a program od that I ran into "Optimal Design for Multi-Level
and Longitudinal Research"  that does sample size computations.  Authors
are Jessica Spybrook (jessicah@umich.edu) 
Andres Martinez (amzz@umich.edu) 
Xiaofeng Liu	(xliu@gwu.sc.edu) 
Stephen Raudenbush (sraudenb@uchicago.edu )

It was produced at the survey research center of the institute for
social research at Michigan.

http://sitemaker.umich.edu/group-based/optimal_design_software
  
will let you download the program and the documentation.

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 Robert A
Yaffee
Sent: Monday, February 11, 2008 12:42 PM
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: Multilvel Model Power Estimation for non-inferiority
testing?

Brad,

Steve Raudenbusch was developing a program to do power estimation for
multilevel models and
a few years ago, it was available for free, from his web site.

    Regards,
            Bob Yaffee


----- Original Message -----
From: "Anderson, Bradley J" <BAnderson1@lifespan.org>
Date: Monday, February 11, 2008 12:31 pm
Subject: st: Multilvel Model Power Estimation for non-inferiority
testing?
To: statalist@hsphsun2.harvard.edu


> Could anyone point toward resources for analyzing statistical 
> power/sample size requirements when doing non-inferiority testing with

> multilevel data.  I'm not finding anything and am stumped.  Thanks
much!
> 
> Brad
> 
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