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 David James posted on Friday, January 22, 2016 - 11:02 pm
Hi Mplus team,

I am trying to complete the simultaneous estimation of an MIMIC model and a multinomial regression model, but keep getting the following error.

The model completes, but the output states:

THE MODEL ESTIMATION DID NOT TERMINATE NORMALLY DUE TO A CHANGE IN THE
LOGLIKELIHOOD DURING THE LAST E STEP.

AN INSUFFICENT NUMBER OF E STEP ITERATIONS MAY HAVE BEEN USED. INCREASE
THE NUMBER OF MITERATIONS OR INCREASE THE MCONVERGENCE VALUE. ESTIMATES
CANNOT BE TRUSTED.
SLOW CONVERGENCE DUE TO PARAMETER 24.
THE LOGLIKELIHOOD DERIVATIVE FOR THIS PARAMETER IS -0.55847450D-02.


ERROR OCCURRED IN THE BRANT WALD TEST FOR PROPORTIONAL ODDS FOR Y1.

ERROR OCCURRED IN THE BRANT WALD TEST FOR PROPORTIONAL ODDS FOR Y2.

ERROR OCCURRED IN THE BRANT WALD TEST FOR PROPORTIONAL ODDS FOR Y3.

ERROR OCCURRED IN THE BRANT WALD TEST FOR PROPORTIONAL ODDS FOR Y4.

ERROR OCCURRED IN THE BRANT WALD TEST FOR PROPORTIONAL ODDS FOR Y5.

ERROR OCCURRED IN THE BRANT WALD TEST FOR PROPORTIONAL ODDS FOR Y9.

ERROR OCCURRED IN THE BRANT WALD TEST FOR PROPORTIONAL ODDS FOR Y10.

ERROR OCCURRED IN THE BRANT WALD TEST FOR PROPORTIONAL ODDS FOR Y11.

ERROR OCCURRED IN THE BRANT WALD TEST FOR PROPORTIONAL ODDS FOR Y12.


Any assistance at all would be greatly appreciated.

Thanks you so much,
Daviid
 Bengt O. Muthen posted on Saturday, January 23, 2016 - 6:16 pm
Please send input, output, and data to Support along with your license number.
 Pia H. posted on Thursday, June 15, 2017 - 10:23 pm
Dear Linda and Bengt

I am having a similar problem with an SEM with latent interaction terms:

WARNING: THE MODEL ESTIMATION HAS REACHED A SADDLE POINT OR A POINT WHERE THE OBSERVED AND THE EXPECTED INFORMATION MATRICES DO NOT MATCH. AN ADJUSTMENT TO THE ESTIMATION OF THE INFORMATION MATRIX HAS BEEN MADE. THE CONDITION NUMBER IS -0.587D-03. THE PROBLEM MAY ALSO BE RESOLVED BY DECREASING THE VALUE OF THE MCONVERGENCE OR LOGCRITERION OPTIONS OR BY CHANGING THE STARTING VALUES OR BY INCREASING THE NUMBER OF INTEGRATION POINTS OR BY USING THE MLF ESTIMATOR.


THE MODEL ESTIMATION TERMINATED NORMALLY

ERROR OCCURRED IN THE BRANT WALD TEST FOR PROPORTIONAL ODDS FOR LIEDETEC.

ERROR OCCURRED [.... for several veriables]

Your advice would be very much appreciated.

Best,
Pia
 Bengt O. Muthen posted on Friday, June 16, 2017 - 5:59 pm
For a given ordered categorical DV you can dichotomize it in several ways and run each of those dichotomous DV analyses to see where the problem lies.
 Pia H. posted on Tuesday, June 20, 2017 - 10:54 pm
Thank you. Is the estimation of regression coefficients within the model affected by this error message or can the estimates be used?
 Bengt O. Muthen posted on Thursday, June 22, 2017 - 1:36 pm
The estimates can be used. But, with no test result we have no information on whether the ordinal regression model is suitable - but it is the standard model.
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