1) Is there a way to request the slope means in a LGCM for each level of a covariate or do these have to be hand calculated from the output.
2) A related question would be how to get the model estimated means for two treatments in a LGCM? I seem only to be able to get the estimated means for the entire sample, but want to look at the differences for each treatment at each time point. Is this possible in Mplus?
3) Could anyone recomended a reference for calculating effect sizes for covariates (e.g., tx) in a LGCM?