Adolescents commit nearly one-fifth of the sex crimes each year. Among those offenders exists a group of adolescent sex offenders with callous and unemotional (CU) traits who seem to show a more severe pattern of sexual offending. The current study attempts to test the importance of these traits by comparing adolescent sex offenders high or low on CU traits based on victim and offense characteristics, and offending history. A sample of 150 detained adolescents with a current sexual offense conviction were assessed through self-report, clinical interview, and file review. Results indicated that after controlling for a history of antisocial behaviors, the high CU group was more likely to have a greater number of victims, use more violence with victims, and engage in more offense planning than the low CU group. The high CU group was also more likely to offend against both strangers and family.

The purpose of this study was to examine the potential moderating effects of CU traits on the relationship between self-reported social intelligence and aggression in a community sample of boys and girls (ages 14-18). Four subtypes of aggression were measured: reactive overt, reactive relational, proactive overt, and proactive relational. Results indicated that there was not a significant association between social intelligence and any of the aggression subtypes. Neither CU traits nor empathy moderated the association between social intelligence and any of the four subtypes of aggression. Supplementary analyses were conducted to investigate whether level and type of aggression was related to levels of social intelligence and CU traits (or an interaction between the two). Results indicated that at high levels of CU traits, youth exhibited significantly higher levels of proactive overt and reactive overt aggression (t(113.06) than at low levels of CU traits.

This study sought to explore the differential associations of CU traits, narcissistic traits, and Machiavellian traits with overt aggression, relational aggression, delinquency, behavioral dysregulation, and emotional dysregulation in a community sample of boys and girls (ages 11-17). Results indicated that the three personality traits were significantly correlated with each other, yet distinct. CU traits, narcissistic traits, and Machiavellian traits demonstrated different unique associations with behavior problems. Specifically, narcissistic traits showed the strongest unique associations with overt aggression, relational aggression, behavioral dysregulation, and emotional dysregulation. CU traits showed the second strongest unique associations with overt aggression, delinquency and behavioral dysregulation, but were not associated with relational aggression or emotional dysregulation. Lastly, Machiavellian traits showed a strong unique association with emotional dysregulation, but were not uniquely associated with externalizing behavior problems. These findings have implications for intervention with aggressive and antisocial youth.