Re: st: sample size estimates for multilevel models

[David Airey <david.airey@Vanderbilt.Edu>]

Sounds bitter rather than practical, but I empathize. :)

Sent from my iPhone

On May 13, 2009, at 12:26 PM, Richard Goldstein  
<richgold@ix.netcom.com> wrote:

> Thanks but ...
>
> Although I bought the biggest Mac available, and although I have  
> attached external hard drives, and will need to attach some more, I  
> still don't really want to give up any room to any version of  
> Windows -- esp. since my dislike of Windows and its instability were  
> what moved me to the Mac
>
> If I have to do that I will -- but I definitely don't want to do that
>
> Rich
>
> David Airey wrote:
> > .
> > I run software on Windows on my Mac as needed, like SAS. Works fine  
> > with Parallels 4 and XP or Vista. If you still have your valid  
> > licenses, why not use them?
> > -Dave
> > On May 13, 2009, at 12:02 PM, Richard Goldstein wrote:
> > > 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
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