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I think somewhere in the manuals, maybe in the ANOVA sections, we are warned that just because Stata can handle unbalanced designs doesn't mean the results are OK. The flexibility offered comes at the price of more responsibility from us.

> I have a very unbalanced design. To be more precise than in my > previous > email where I "combined information", I have following n- > distribution: 1. > Cohort with 4 groups: 21, 14, 35, 17; total 87 and 2. Cohort with 3 > groups: > 35, 21, 19; total 75; cohorts are analysed seperately. > In the Stata-Manual I found following information: > > manova fits multivariate analysis-of-variance (MANOVA) and > multivariate > analysis-of-covariance (MANCOVA) models for balanced and unbalanced > designs... > > I therefore decided not to do any adjustment. Please, correct me if > this was > wrong! > > Thanks again for your help! > Maren

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Posted at 11/16/2005 11:56:00 AM EST (UTC -0500) [Permanent Link]
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