Mplus Users Guide v6.. - Muthén & Muthén

CHAPTER 17specifies that regression coefficients are free to be estimated for classes1 and 2 of the categorical latent variable c regressed on the independentvariables x1, x2, and x3. The intercepts in the regression of thecategorical latent variable on the independent variables are free to beestimated as the default.The statement above can be simplified to the following:c ON x1-x3;The multinomial logistic regression of one categorical latent variable onanother categorical latent variable where c2 has four classes and c1 hasthree classes is specified as follows:c2 ON c1;orc2#1 c2#2 c2#3 ON c1#1 c1#2;For an unordered categorical (nominal) observed variable, an ONstatement is specified for each category except the last category which isthe reference category. A category label is used to refer to eachcategory. Category labels use the convention of adding to a variablename the number symbol (#) followed by a number. For a threecategoryvariable u,u#1 u#2 ON x1-x3;specifies that regression coefficients are free to be estimated forcategories 1 and 2 of the unordered categorical (nominal) observedvariable u regressed on the independent variables x1, x2, and x3. Thethresholds in the regression of the unordered categorical (nominal)observed variable on the independent variables are free to be estimatedas the default.The statement above can be simplified to the following:u ON x1-x3;580