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Hallo, in an LGCM on physical endurance measured with motor tests Mplus reports correlation coefficients (i with s) which are far beyond 1 and +1. I do not understand these estimations. Thank you and best regards Stefan 


That says that you have a poor model that should be respecified in some way. Perhaps a random s is not needed for instance. 


Indeed, some model fits are poor. However I thought this correlation has to be between 1 and +1. In this case it is 17,... Thank you 


Postscript: Is it an issue of standardization in the Output command? 


The variances and the covariances of i and s are freely estimated. When standardized the estimates may give rise to correlations greater than 1 in absolute value, that is, the covariance matrix for i and s is not positive definite. There are ways to enforce pos def but I think it is valuable to see such nonpos def to realize that the model is not good and modify it. 

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