Machine generated contents note: 1. Latent Variable Hybrids: Overview of Old and New Models / Bengt Muthen -- pt. I Multilevel and Longitudinal Systems -- 2. Multilevel Mixture Models / Bengt Muthen / Tihomir Asparouhov -- 3. Longitudinal Modeling of Population Heterogeneity: Methodological Challenges to the Analysis of Empirically Derived Criminal Trajectory Profiles / Frauke Kreuter / Bengt Muthen -- 4. Examining Contingent Discrete Change Over Time with Associative Latent Transition Analysis / Brian P. Flaherty -- 5. Modeling Measurement Error in Event Occurrence for Single, Non-Recurring Events in Discrete-Time Survival Analysis / Katherine E. Masyn -- pt. II Models for Assessment and Diagnosis -- 6. Evidentiary Foundations of Mixture Item Response Theory Models / Marc Kroopnick / Daisy Rutstein / Roy Levy / Robert J. Mislevy -- 7. Examining Differential Item Functioning from a Latent Mixture Perspective / Karen M. Samuelsen -- 8. Mixture Models in a Developmental Context / Christians Spiel / Judith Gluck / Mark Wilson / Karen Draney -- 9. Applications of Stochastic Analyses for Collaborative Learning and Cognitive Assessment / Amy Soller / Ron Stevens -- 10. Mixture General Diagnostic Model / Matthias von Davier -- pt. III Challenges in Model Evaluation -- 11. Categories or Continua? The Correspondence Between Mixture Models and Factor Models / Peter Molenaar / Eric Loken -- 12. Applications and Extensions of the Two-Point Mixture Index of Model Fit / C. Mitchell Dayton -- 13. Identifying the Correct Number of Classes in Growth Mixture Models / Craig K. Enders / Davood Tofighi