Dear R-Users:
I would like to fit a multilevel model using LME such that the parameters after fitting the multilevel in two separate groups and when I use the complete data (with interactions between the grouping variable and the other variables) set are comparable (or the same).
The problem I am having currently is that I am not sure whether it is possible to let the random error term to vary by group such that the models are comparable. At present only one random error term is estimate and this "sort of" distorts the parameter estimates for the fixed and other random effects.
Looking forward to your help.
Vumani Dlamini
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