Mplus Discussion >> Vary Dispersion Parameters Over Classes in NB LCA

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Vary Dispersion Parameters Over Class...

Mplus Discussion > Latent Variable Mixture Modeling >

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Ben Matthews posted on Thursday, October 29, 2015 - 7:35 am

Dear Drs Muthen,

I'm running a latent class analysis on over-dispersed count data, and due to this over-dispersion I'm running a negative binomial model.

By default the dispersion parameters are equal across classes (UG p.223) - is there example syntax to allow the dispersion parameters to vary across classes?

Many thanks,

Ben

Tihomir Asparouhov posted on Thursday, October 29, 2015 - 9:40 am

Just add this code to the example.

%C#1%
u1-u8;
%C#2%
u1-u8;