Dear Everybody: I want to test an interaction of two repeated measures in lmer() I've response times (Y) from N subjects with two within-subject-factors.
aov(Y ~ A*B + Error(subjects/A*B), ...) shows an insigificant interaction p(A:B) = .35
now lmer() lm1 = lmer(Y ~ 1+A+B+(1+A*B|subjects), ...) lm2 = lmer(Y ~ 1+A*B+(1+A*B|subjects), ...) p(A:B) = anova(lm1,lm2) is this right? and when do I have to write lm1 = lmer(Y ~ 1+A+B+(1|subjects)+(1|subjects:A:B), ...) lm2 = lmer(Y ~ 1+A*B+(1|subjects)+(1|subjects:A:B), ...) p(A:B) = anova(lm1,lm2) ? many thanks in advance, René ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
