Research linking psychopathic tendencies to childhood behavior problems is predicated on the assumption that the findings are based on using psychometrically sound measures of psychopathic tendencies. Although evaluated with community samples, the psychometric properties of such measures have not been evaluated with inpatient clinical populations…

The Psychopathy Checklist-Revised (PCL-R) has been conceptualized as indexing two distinct but correlated factors. Previous research has established that these factors demonstrate distinct patterns of relations with external criteria. However, more recent findings suggest that the PCL-R psychopathy construct may encompass three distinguishable…

This study examined the structure, distribution, and correlates of a new measure of self-reported callous-unemotional (CU) traits in 1,443 adolescents (774 boys, 669 girls) between the ages of 13 to 18 years. The Inventory of Callous-Unemotional Traits was subjected to exploratory factor analysis and confirmatory factor analysis. Exploratory…

The authors investigated the predictive and incremental validity of the Early Assessment Risk List for boys (EARL-20B; Augimeri, Koegl, Webster, & Levene, 2001), a structured clinical checklist designed for the professional judgment of risk for aggressive and disruptive behaviors and risk/needs factor-based management of this risk. Seventy-six…