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Mplus Users Guide v6.. - Muthén & Muthén

Mplus Users Guide v6.. - Muthén & Muthén

Mplus Users Guide v6.. - Muthén & Muthén

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MODEL Commandare used with the %WITHIN% and %BETWEEN% specifications todescribe the mixture part of the model.THE MODEL POPULATION COMMANDThe MODEL POPULATION command is used to provide thepopulation parameter values to be used in data generation using theoptions of the MODEL command described earlier. The MODELPOPULATION command has variations for use with multiple groupmodels, mixture models, and multilevel models. These are describedbelow.In the MODEL POPULATION command, each parameter in the modelmust be specified followed by the @ symbol or the asterisk (*) and thepopulation parameter value. Any model parameter not specified willhave the value of zero as the population parameter value.Parameter estimates can be saved from a real data analysis using theESTIMATES option of the SAVEDATA command and used in asubsequent Monte Carlo analysis as population parameter values. Thisis done by using the POPULATION option of the MONTECARLOcommand.MODEL POPULATION:The MODEL POPULATION command is used to provide thepopulation parameter values to be used in data generation for singlegroup analysis and the overall analysis model for multiple groupanalysis.MODEL POPULATION-label:MODEL POPULATION followed by a dash and a label is used toprovide parameter values to be used in the generation of data for thegroup-specific analysis models in multiple group analysis and theanalysis model for each categorical latent variable in mixture modelingwhen there are more than one categorical latent variable in the analysis.In multiple group analysis, the label following the dash refers to thegroup. The first group is referred to by g1, the second group by g2, and625

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