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| Li Yan posted on Monday, December 18, 2017 - 7:32 pm
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Dear Dr Muthen,
When I run an unconditional parallel LGCM, it gives me a warning:
WARNING: THE LATENT VARIABLE COVARIANCE MATRIX (PSI) IS NOT POSITIVE DEFINITE. THIS COULD INDICATE A NEGATIVE VARIANCE/RESIDUAL VARIANCE FOR A LATENT VARIABLE, A CORRELATION GREATER OR EQUAL TO ONE BETWEEN TWO LATENT VARIABLES, OR A LINEAR DEPENDENCY AMONG MORE THAN TWO LATENT VARIABLES. CHECK THE TECH4 OUTPUT FOR MORE INFORMATION.PROBLEM INVOLVING VARIABLE S1.
MODEL: i1 s1 | po02@0 po05@1 po08@2 po11@2 po14@2;
i1 s2 | po02@0 po05@0 po08@0 po11@1 po14@2;
i2 s3 | pa02@0 pa05@1 pa08@2 pa11@2 pa14@2;
i2 s4 | pa02@0 pa05@0 pa08@0 pa11@1 pa14@2; |
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| Do as the message suggests - check TECH4. |
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