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Mplus Discussion > Structural Equation Modeling >
 GradStudent posted on Monday, March 14, 2011 - 9:49 pm
I need help to figure out the syntax for the following:

Independent Variable is Treatment
I want to find out if the change in depression from pre to posttreatment is moderated by sex and several other dychotomous variables.

I tried using the syntax from some other users that have posted here, but I am getting an error.

my basic regression is

Depression Post on Depression Pre

but I don't know how to constrain the path.

i need to get the unconstrained paths for males and females

and then the constrained paths for males and females

and calculate the chi square diff test.

I would really appreciate any help with this. Ideally, if there is a syntax already written on this, I could then replace the variables to match mine.

Thank you!
 Linda K. Muthen posted on Tuesday, March 15, 2011 - 3:59 pm
You could do a multiple group analysis with gender as the grouping variable. The unconstrained model is:

post ON pre;

The constrained model is:

post ON pre (1);
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