Factor structure and construct validity of the parent-reported Inventory of Callous-Unemotional Traits among high-risk 9 year olds

摘要

The presence of Callous-Unemotional (CU) traits delineates a subgroup of youth with severe antisocial behavior. However, debate surrounds the best method to assess CU traits. This study examined the factor structure of the parent-reported Inventory of Callous Unemotional Traits (ICU) among high risk 9-year olds (N = 540) and its predictive validity over one year. Confirmatory Factor Analysis showed support for a three-factor bifactor model and revised two-factor model using a shortened ICU. Within a three-factor bifactor framework the general callous-unemotional (CU) traits factor and specific uncaring factor scores were related to higher externalizing and lower internalizing behavior problems at ages 9.5 and 10.5. Findings were replicated using teacher-reported outcomes. However, results suggest the need for item refinement and highlight the utility of a two-factor solution using a shortened ICU. In particular, the meaning of the unemotional items is discussed in relation to the conceptualization of CU traits.