Re: st: Anova repeated measures

[Michael Norman Mitchell <Michael.Norman.Mitchell@gmail.com>]

I think that Morten has a very nice suggestion, using xtmixed due to 
missing data. To that end, I would highly recommend Phil Ender's 
presentation to the West Coast Stata User's Group which you can find at

http://www.docstoc.com/docs/28899119/Repeated-Measures-Anova-the-Wide-the-Long-and-the

I think it does an excellent job of progressively walking through the 
options for analyzing such data, culminating with illustrations of using 
-xtmixed- for repeated measures analysis and contrasting it with the 
previously shown alternatives.

Best regards,

Michael N. Mitchell
See the Stata tidbit of the week at...
http://www.MichaelNormanMitchell.com

On 2010-04-22 11.43 PM, Morten Vejs Willert wrote:
> Hi Peter
>
> Perhaps you could use repeated measures analysis of variance using
> Stata's mixed model capabilities (-xtmixed- command).
>
> Best regards
>
> Morten
>
> 2010/4/21 Peter Kraglund Jacobsen<peter@kraglundjacobsen.dk>:
>    
> > projektnum      t       gruppe  vas
> > 93      1       Parenteral morphine     8
> > 93      2       Parenteral morphine     .
> > 93      3       Parenteral morphine     9
> > 93      4       Parenteral morphine     9
> > 93      5       Parenteral morphine     8
> > 95      1       XXX with NaCl   5
> > 95      2       XXX with NaCl   .
> > 95      3       XXX with NaCl   3
> > 95      4       XXX with NaCl   2
> > 95      5       XXX with NaCl   .
> > 101     1       XXX with Naropine       3
> > 101     2       XXX with Naropine       .
> > 101     3       XXX with Naropine       5
> > 101     4       XXX with Naropine       5
> > 101     5       XXX with Naropine       .
> >
> > In this example, three persons (projektnum) in three groups (gruppe)
> > are asked about pain score (vas) at five different times (t).
> > How do I show if there is a difference in VAS between the three groups?
> > *
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> >
> >      
> *
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