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RE: st: Repeated Measures ANOVA and Missing Values


From   amir gahremanpour <gamirali@hotmail.com>
To   statalist <statalist@hsphsun2.harvard.edu>
Subject   RE: st: Repeated Measures ANOVA and Missing Values
Date   Tue, 18 Oct 2011 12:06:19 -0500

Dear Phil,

many thanks! 


Amir

----------------------------------------
> Date: Tue, 18 Oct 2011 08:10:09 -0700
> Subject: Re: RE: st: Repeated Measures ANOVA and Missing Values
> From: ender97@gmail.com
> To: statalist@hsphsun2.harvard.edu
>
> <gamirali@hotmail.com> wrote:
>
> so I suppose for repeated measures without missing values, xtmixed or
> r.anova are kind of the same thing !
> --------------------------
>
> Amir,
>
> Yes, -xtmixed, reml- without missing observations yields the exact
> same results as repeated measures anova. There are additional
> benefits to -xtmixed- even for complete data. -xymixed- allows for
> covariance structure other than compound symmetry (exchangeable), such
> as, ar1, using the -residuals- option. With -xtmixed- you can also
> have equally spaced time intervals that vary by subject.
>
> --
> Phil Ender
> UCLA Statistical Consulting Group
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