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st: Two new packages: -sampicc- and -iccconf- available from SSC


From   "Visintainer PhD, Paul" <Paul.Visintainer@bhs.org>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: Two new packages: -sampicc- and -iccconf- available from SSC
Date   Thu, 20 Nov 2008 08:28:42 -0500

Thanks again to Kit Baum, two new packages dealing with intraclass correlations are available from SSC.

-sampicc- computes the sample size or, alternatively, the power required to test an ICC (p1) against a null value (p0).  In addition, the program will compute the sample size for a specified width of a confidence interval for the ICC.

 -iccconf- is an immediate command that computes a confidence interval for a single intraclass correlation (ICC).  The procedure is based on an approach using the F-test described by Rosner.

To install type:

.ssc install sampicc
.ssc install iccconf


Regards,

Paul


_____________________
Paul F. Visintainer, PhD
paul.visintainer@bhs.org



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