Problem involving parameters PreviousNext
Mplus Discussion > Multilevel Data/Complex Sample >
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 Patchara Popaitoon posted on Wednesday, May 18, 2011 - 2:56 pm
Dear Linda,

Please could you help me understand where the problem is in the model specification. I don't know how to read which one is parameter 155. I sometimes got similar errors but in different parmeters. Many thanks.

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THE STANDARD ERRORS OF THE MODEL PARAMETER ESTIMATES MAY NOT BE
TRUSTWORTHY FOR SOME PARAMETERS DUE TO A NON-POSITIVE DEFINITE FIRST-ORDER DERIVATIVE PRODUCT MATRIX. THIS MAY BE DUE TO THE STARTING VALUES BUT MAY ALSO BE AN INDICATION OF MODEL NONIDENTIFICATION. THE CONDITION NUMBER IS -0.222D-18. PROBLEM INVOLVING PARAMETER 155.
 Linda K. Muthen posted on Wednesday, May 18, 2011 - 3:45 pm
You can see what parameter 155 is by looking at TECH1. If you cannot figure out the problem, please send your output and license number to support@statmodel.com.
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