I want to remove outliers (with residuals beyond 2.5sd) from my model. I have tried this code:
acc.glmer1=glmer(correct_answer ~ condition + (1|Participant) + (1|word),
data = ldt[abs(scale(resid(acc.glmer)))<2.5,], family="binomial")
and I get the following error message:
Error: bad 'data':
I run the same code on a different dataset and it runs smoothly without any issues.