Mixed Model Analysis Wamings The final Hessian matrix is not positive definite although all convergence criteria are satisfied The MIXED procedure continues despite this waming_ Validity of subsequent results cannot be ascertained Model Dimension Number of Levels Number of Parameters Fixed Effects Random Effects Residual Total Intercept Intercept + Age Covariance Structure Variance Components Subject Variables Industry Dependent Variable Total salary & wages received in reference month. As of version 11 5, the syntax rules for the RANDOM subcommand have changed. Your command syntax may yield results that differ from those produced by prior versions. If you are using version 11 syntax, please consult the current syntax reference guide for more information. nformation Criteria -2 Log Likelihood Information Criterion (AIC) Hucyjnand Tsats Criterion (AICC) criterion (CAIC) Schwarz's Bayesian Criterion (BIC) 1293909.174 1293919.174 1293919.174 12%96ggog 1293964.909 The information criteria are displayed in smaller-is-better form a. Dependent Variable: Total salary & wages received in reference month.