Published on *OpenMx* (http://openmx.psyc.virginia.edu)

By *alex76*

Created *05/26/2011 - 09:30*

Thu, 05/26/2011 - 09:30 — alex76 [1]

Hello,

I have a question on the following: I have a model with 6 IV's, 3 mediators M, and 1 DV. (all observed variables).

Suppose model 1 has all direct effects of the IV's on the M's, and all direct effects of the M's on the DV. All IV's are allowed to correlate.

Model 2 is the same, except that one IV is dropped from the model.

How should I compare these two models to each other? If I understand this correctly, the models are not nested? So should I then use the AIC instead of a Chi sqr difference?

Kind regards, Alexandra

**Links:**

[1] http://openmx.psyc.virginia.edu/users/alex76

[2] http://openmx.psyc.virginia.edu/thread/955

[3] http://openmx.psyc.virginia.edu/thread/785

[4] http://openmx.psyc.virginia.edu/forums/opensem-forums/general-sem-discussions