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Re: st: Sample size for cluster randomised trials


From   Nikolaos Pandis <npandis@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Sample size for cluster randomised trials
Date   Fri, 4 Jun 2010 23:03:14 -0700 (PDT)

Dear All,

Many thanks on your input regarding sample size calculations for cluster randomised trials.
The optimal design software is great.

Best wishes,
Nick

--- On Fri, 6/4/10, Michael N. Mitchell <Michael.Norman.Mitchell@gmail.com> wrote:

> From: Michael N. Mitchell <Michael.Norman.Mitchell@gmail.com>
> Subject: Re: st: Sample size for cluster randomised trials
> To: statalist@hsphsun2.harvard.edu
> Date: Friday, June 4, 2010, 7:53 PM
> Dear Nick
> 
>    In addition to -sampclus-, there is the
> program called "Optimal Design" which you can 
> download for free at
> 
> http://www.wtgrantfdn.org/resources/overview/research_tools/research_tools
> 
>    That page has a link for the software as
> well as a very good manual that not only 
> explains how to use the software, but also provides great
> background information for power 
> calculations for cluster randomised trials.
> 
>    Here are a couple of additional
> references that could be very useful.
> 
> http://www.ssicentral.com/hlm/techdocs/RaudenbushandLiu00.pdf
> http://www.ssicentral.com/hlm/techdocs/PsychMethods97.pdf
> 
> Best luck,
> 
> Michael N. Mitchell
> Data Management Using Stata      - http://www.stata.com/bookstore/dmus.html
> A Visual Guide to Stata Graphics - http://www.stata.com/bookstore/vgsg.html
> Stata tidbit of the week     
>    - http://www.MichaelNormanMitchell.com
> 
> 
> 
> On 2010-06-04 6.48 AM, Nikolaos Pandis wrote:
> > Hi to all.
> >
> > I was wondering if there is an ado available for
> sample size calculation of cluster randomised trials?
> >
> > Many thanks,
> >
> > Nick
> >
> >
> >
> > *
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> 


      

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