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: [email protected] [mailto:[email protected]]
Sent: Wednesday, September 10, 2003 6:28 PM
To: [email protected]
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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* For searches and help try:
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* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/