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st: RE: Power for complex experimental design


From   "FEIVESON, ALAN H. (AL) (JSC-SK) (NASA)" <alan.h.feiveson@nasa.gov>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Power for complex experimental design
Date   Thu, 11 Sep 2003 08:04:52 -0500

Jim - 

This looks like a case for simulation - In Stata, type "findit power
simulation" . There is a Stata FAQ and a Stata Journal article on this.

Al Feiveson

-----Original Message-----
From: Jim.Seward@sunhealth.org [mailto:Jim.Seward@sunhealth.org]
Sent: Wednesday, September 10, 2003 6:28 PM
To: statalist@hsphsun2.harvard.edu
Subject: st: Power for complex experimental design


I'm desperately in need of some guidance to do a power analysis to
determine sample size for a complex experimental design.  There are 3
experimental groups of mice, half male and half female.  There are 5
treatments.  Mice are sacrificed at 3 time points.  I've hypothesized
effect sizes.  Where do I start?

Thanks,
Jim Seward

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