This question already has an answer here:
I'm trying to find outliers in this mixed model:
m1 <- lmer(y ~ service + lectage + studage + (1|d) + (1|s), data=InstEval)
So I used the
reEx <- REsim(m1)
and plotted reEx
p1 <- plotREsim(reEx)
but how can I find which observations are the actual outliers?