我在使用Mplus的过程中,出来的结果出现了如下情况。
请问如果我初始值没有问题,是不是就是因为模型未标识呢,这是什么意思呢,我该怎么进行修正呢?
THE MODEL ESTIMATION TERMINATED NORMALLY
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 0.285D-15. PROBLEM INVOLVING THE FOLLOWING PARAMETER:
Parameter 40, MZ2