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group_b
2012 Dec 02
1
Repeated-measures anova with a within-subject covariate (or varying slopes random-effects?)
...tional batch of
subjects that performed the task in the 6-run session but with the
order of conditions A and B reversed (A on even-numbered runs and B on
odd-numbered runs); now, if we wanted to analyze the data from the two
groups of subjects together, by including a between-subjects group
factor (groupAB, groupBA), would the model specification become
something like the following?
rt.aov <- aov(rt ~ run + group * stim * cond + Error(subj /(run +
stim * cond)), data=rt.df)
Perhaps should lme() be used instead (and with which formula?)?
Many thanks in advance to anybody who'd be so kind...