Hi, Thanks. I mis-spoke: the R-squareds are zero, not residual variances. What should one make of that? (I'm trying to work my way through some problems with the demo program before the real program arrives.) Ordinarily,wouldn't you be worried with a correlation of 1.00 (or so) between an intercept and slope in a growth model? Is there something about a mixture model that is different?
The r-squared values being undefined are related to the correlation being greater than one. Both of these indicate that the model has some faults and could benefit from modification. There is no difference between this siutuation in a regular model or in a mixture model.