Hi All!
So, I am a little stuck on something. I have a 2 (group) x 2 (intervention) x 4 (time) mixed effects model. The participants (in 2 groups) were test at pre-test, post-test, and 2 follow-up points. Here is my code:
mixed believe i.time##dx##cond || id:
However, I wish to include the pre-test scores as a covariate to help control for baseline differences. Any idea how to do this? Thanks for the help in advance, it is so appreciated!
So, I am a little stuck on something. I have a 2 (group) x 2 (intervention) x 4 (time) mixed effects model. The participants (in 2 groups) were test at pre-test, post-test, and 2 follow-up points. Here is my code:
mixed believe i.time##dx##cond || id:
However, I wish to include the pre-test scores as a covariate to help control for baseline differences. Any idea how to do this? Thanks for the help in advance, it is so appreciated!
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