glmer

Dear Community,

I'm working with lme4 package, and have a question regarding glmer
function. I would like to compare effect sizes of a within and a between
subject study - in the within subject study df is twice as big as in the
between subject one. I was wondering whether there is a way to calculate
standardized effect size.

Thank you very much for your help in advance!

Best regards,
Bence Bago