Statalist


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: RE: sample size estimates for multilevel models


From   Richard Goldstein <richgold@ix.netcom.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: sample size estimates for multilevel models
Date   Wed, 13 May 2009 17:03:14 -0400


thank you -- I used that when I used Windows and it is a nice program

Rich

Lachenbruch, Peter wrote:
There is a program called OD from the survey research center at
Michigan.  Check with Stephen Raudenbusch  sraudenb@uchicago.edu for
further instructions.  "Optimal Design for Multi-level and Longitudinal
Research"

Tony

Peter A. Lachenbruch
Department of Public Health
Oregon State University
Corvallis, OR 97330
Phone: 541-737-3832
FAX: 541-737-4001


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Richard
Goldstein
Sent: Wednesday, May 13, 2009 10:02 AM
To: statalist
Subject: st: sample size estimates for multilevel models


Having recently switched from Windows to a Mac, I find myself missing one thing from the Windows world -- software for sample size estimation for multilevel models (models that one would use, e.g., -xtmixed- or -gllamm- for).

I find that, within Stata, I can get what appears to be a reasonable estimate by -sampsi- for repeated measures and following this with Joanne Garrett's -sampclus- (from STB 60). However, I would like to check the reasonableness of the answer if possible either within Stata or with Mac software (if any).

Any suggestions are very welcome.

Thanks,

Rich
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index