Newbie here, just joined the list.
I discovered something interesting when performing a mixed between and within (repeated measure) ANOVA in R. The error terms (SS actually I guess) are inflated by the number of factors of the within measure. This just seems wrong. I think I'm doing it right
e. g.
subj grp test x 1 1 1 ... 1 1 1 1 1 2 1 1 2 2 2 1 2 2 1 2 2 2 2 2 2
So, the anova is done with
aov (x~ grp*test + Error(subj/test))
Is there something I am doing wrong here? On a related note can I properly analyze a subset of between measures by adding something to my aov command instead of aggregating the data?
thanks John
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