I'm running a linear mixed effects model with group, time, and the interaction between group and time as fixed effects and a random effect for each subject. The outcome was measured at 3 time points. I was just wondering if it would be more appropriate to include the baseline scores in the model as a covariate with the time 2 and 3 scores as the outcome, or include time 1, 2 and 3 scores as the outcome instead.



Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.