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Re: st: Sample size for cluster randomised trials


From   "Michael N. Mitchell" <[email protected]>
To   [email protected]
Subject   Re: st: Sample size for cluster randomised trials
Date   Fri, 04 Jun 2010 09:53:55 -0700

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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