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

[Richard Goldstein <richgold@ix.netcom.com>]

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/