Andy Ross posted on Tuesday, April 14, 2009 - 1:56 pm
Dear Prof Muthen
I would like to check that I am specifying my model correctly
When estimating a path analysis with a nominal variable which serves as both a dependent and independent variable - do I have to create dummy variables for the part in which I treat it as an independent?
A nominal variable cannot be used as a mediator. You could look at each category separately or use the nominal variable as a grouping variable.
Andy Ross posted on Wednesday, April 15, 2009 - 11:52 am
Many thanks for your response - I don't think my original question was very clear
What I'm trying to do is estimate the equivalent of a latent transition analysis (example 8.13 without the interaction) - except that in my analysis c1 and c2 are not latent, and u3 and u4 are the same categorical predictor measured at two time points (in that sense I'm not examining u2 as a mediator of u4 on u1)
How would I then specify the regression of u1 on u2?