Mplus Users Guide v6.. - Muthén & Muthén

CHAPTER 17Numerical integration becomes increasingly more computationallydemanding as the number of factors and the sample size increase.Interactions between observed variables are handled using the DEFINEcommand where an interaction variable is created via multiplication. Ifan observed dependent variable has missing data, a latent variable can becreated for this observed variable and the procedure described above canbe used.Interactions between categorical latent variables and between acategorical latent variable and an observed or continuous latent variableare handled using mixture modeling.Following is a table that summarizes ways of obtaining interactions fordifferent variable types.Types of Variablesobserved continuous withobserved continuousobserved categorical withobserved continuousobserved continuous withcontinuous latentobserved categorical withcontinuous latentobserved continuous withcategorical latentobserved categorical withcategorical latentcontinuous latent withcontinuous latentcontinuous latent withcategorical latentcategorical latent withcategorical latentInteraction OptionsDEFINEDEFINEMultiple GroupXWITHXWITHMultiple GroupMIXTUREMIXTUREKNOWNCLASSXWITHMIXTUREMIXTURE612