topic Re: R^2 value standard least square with random effects in Discussions

R^2 value standard least square with random effects

blip555555 — Wed, 23 Apr 2025 15:25:12 GMT

Good afternoon,

I was wondering when fitting a mixed model using standard least squares and adding random effects as attributes, is the R-squared reported an R-squared accounting for fixed and random effects?

Thank you!

Re: R^2 value standard least square with random effects

statman — Wed, 23 Apr 2025 15:33:58 GMT

R-square is the amount of the total variation in the study explained by the model.

Re: R^2 value standard least square with random effects

MRB3855 — Wed, 23 Apr 2025 16:26:10 GMT

Hi @blip555555 : To see what JMP reports in this situation, run the model twice; once with the factors' attributes set to random, and once leaving the factors as fixed effects. You will then know the answer to your question; if the R^2 are the same, "yes". Otherwise, "no".