Multitrait-multimethod (MTMM) confirmatory factor models were combined with longitudinal structural equation models to examine trait and method stability over time. A longitudinal correlated-trait correlated-method (CT-CM) model allowed for the study of trait and method variance in observed scores over time. Longitudinal measurement invariance was…

Standardized rating scales remain the primary mechanism through which child behaviors are recorded. Despite the many advantages of such systems, the documented lack of agreement among different informants' ratings of the same child remains a pervasive problem for clinicians. This study examines the degree to which observed behavior ratings were…

Correlational analysis, classical test theory, confirmatory factor analysis, and multilevel Rasch modeling were used to refine a measure of adolescents' exposure to violence (ETV). Interpersonal violence could be distinguished from other potentially traumatic events; it was also possible to distinguish three routes of exposure (victimization,…