Non positive definite and fit statistics PreviousNext
Mplus Discussion > Confirmatory Factor Analysis >
 Peter Ji posted on Wednesday, February 10, 2010 - 5:17 pm
I ran some models and for some of the them I received a NPD, non positive definite. So the model's results cannot be interpreted. But I even if the model was NPD, the output still presents fit statistics. Why is that so? and even when MPLUS produces fit statistics with a NPD, the model is still uninterpretable, correct?
 Bengt O. Muthen posted on Wednesday, February 10, 2010 - 10:50 pm
A model with inadmissible parameter values, such as NPD, can still fit the data well. But it is not defensible due to the NPD.
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