Odd CFA results using MLR PreviousNext
Mplus Discussion > Confirmatory Factor Analysis >
 Chris Coleman posted on Sunday, April 14, 2013 - 8:40 am

Consider these competing models and results (same dataset, MLR estimator used, no error/warning messages):

f1 by o1* o2-o8;
X2=108, df=20, scf=1.33
(H0 scf=1.35, H1 scf=1.34)

f1 by o1* o2-o8;
f2 by o2* o3 o5 o7;
f1@1 f2@1;
f1 with f2@0;
X2=143, df=16, scf=0.81
(H0 scf=1.64, H1 scf=1.34)

The bifactor model should always yield a lower X2 than the simple one-factor model, shouldn't it?

 Linda K. Muthen posted on Sunday, April 14, 2013 - 4:12 pm
I think this holds for ML not MLR. Please end the outputs and your license number to support@statmodel.com. if you want further information.
 Chris Coleman posted on Monday, April 15, 2013 - 12:23 pm
Hi Linda,

Thanks for your reply. You're absolutely right; the pattern of X2s was as expected with the ML estimator.
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