Multiple group LCM with different obs... PreviousNext
Mplus Discussion > Growth Modeling of Longitudinal Data >
 R McDowell posted on Thursday, December 21, 2017 - 6:02 am
Hello. I am trying to fit a multigroup LCM model for two groups. The first group has observations at times 0,1,...,10. The second group only has observations recorded at times 6,7,..,10 (ie observations are missing for times t=0,...5). I'd like to fit both latent curves simultaneously, however Mplus reports that the data is missing for the earlier times in the second group (obviously). I've tried incorporating the earlier time points into the latent curve for the second group by fixing loadings, means, variances etc. to zero but to no effect. Is it possible to fit the multigroup model for this type of data?
Thank you yet again for your helpful advice.
 Bengt O. Muthen posted on Thursday, December 21, 2017 - 3:27 pm
Use the approach of UG ex 6.18.
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