|Date: ||Thu, 27 Apr 2000 11:32:45 -0500|
|Reply-To: ||Warren Schlechte <wschlech@KTC.COM>|
|Sender: ||"SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>|
|From: ||Warren Schlechte <wschlech@KTC.COM>|
|Subject: ||Does SAS Help Select Necessary Sample Size|
|Content-Type: ||text/plain; charset="iso-8859-1"|
I have a repeated measures problem, with multiple control and treatment
sites. I wish to measure the rate of occurrence of a specific genotype
before and after treatment at both control and treatment sites. Is there a
procedure in SAS that would allow me to specify rates and variances for the
different sites pre and post and the power of detection desired and would
output a sample size necessary to satisfy those constraints?
Thanks for any help.
Heart of the Hills Research Station
HC7 Box 62
Ingram, Texas 78025