Phantom variable approach to unequall... PreviousNext
Mplus Discussion > Structural Equation Modeling >
 Nicholas Turner posted on Friday, January 11, 2013 - 7:16 am
I have unequally spaced longitudinal data. I would like to use the phantom variable approach to introduce additional latent variables to fill in the gaps in the panel design despite the lack of manifest variables. Can I do this in Mplus by applying approriate parameter constraints and if so could you point me in the direction of an example?

thanks in advance,
 Bengt O. Muthen posted on Friday, January 11, 2013 - 4:44 pm
I don't see why you want to take that approach to unequally spaced long'l data. I am sure you can set it up in Mplus and perhaps you can go by an approach such as McArdle's latent difference modeling. I don't have a setup handy - haven't tried it myself. Make sure the model is identified.
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