The Youth Psychopathic Traits Inventory (YPI) assesses psychopathic traits cost-effectively while minimizing social desirability. To determine which YPI summary scores should be used, we tested (a) the factorial validity of its three scales and 10 subscales, (b) the fit of a new bifactor model, and (c) the measurement invariance of the best model across gender, age, and community/institutionalized samples. Three hundred ninety-five community adolescents (M age 15.8) and 200 institutionalized adolescents (M age 15.0) filled in the French translation of the YPI. The factorial validity of the 10 subscales was supported by confirmatory factor analysis. Model comparisons favored the new bifactor model, independent of age, gender, and community/institutionalized status. Measurement invariance was confirmed. These findings support the previous YPI validation studies conducted on the 10 subscale scores, and suggest that YPI users should rely in all samples on the simultaneous use of the total score and the three scale scores, which is a common practice.

This study aims at evaluating how minor and serious delinquency relates to cognitive and emotional functioning in high-risk adolescents, taking problematic substance use into account. In 80 high-risk adolescent males (13-19 years), the frequency of minor and serious offences committed over the last year was predicted, in multiple regression analyses, from problematic substance use, intellectual efficiency, trait impulsivity, alexithymia (inability to express feelings in words), and cognitive coping strategies. Both minor and serious delinquency were more frequent in adolescents with more problematic substance use and higher intellectual efficacy. Minor delinquency was further related to a tendency to act out when experiencing negative emotions, and difficulties in focusing energy on instrumental action when under stress; while serious delinquency was predominantly and strongly related to rigid and dichotomous thinking. The results underline the heterogeneous nature of delinquency, minor offences being primarily associated with emotional regulation deficits, while major offences are related with a lack of cognitive flexibility.

Youths with conduct disorders (CD) are particularly studied for their violent and aggressive behaviors. Many researchers considered aggressive behaviors as being either reactive or proactive. Moreover, factors such as age of CD onset, impulsivity, and callous-unemotional traits, separately, have been related to these different types of aggressive behaviors. However, very few studies addressed the combined contribution of these three factors on proactive and reactive aggression. This question was tested in a sample composed of 43 male adolescents with CD. A single regression analysis including all predictors and outcomes, using Bayesian statistics, was computed. Results indicated that impulsivity was related to reactive aggression, while CU traits were related to proactive aggression. These results suggest first, an important heterogeneity among youth with CD, probably leading to different trajectories and, second, that youths with callous-unemotional traits should receive special attention and care as they are more at risk for proactive aggression.

The current study investigated gender differences in the main components of antisocial behavior in an at-risk versus an offender group of adolescents. One-hundred and forty-three adolescents divided into two different risk groups [at risk (n = 54) and offenders (n = 89)] were compared according to gender (111 boys and 32 girls). Externalizing symptoms were assessed with the Delinquent and Aggressive subscales of the Youth Self-report Questionnaire, internalizing problems with the Beck Anxiety Inventory and the Beck Depressive Inventory and personality traits with the Barratt-Impulsiveness Scale as well as the Youth Psychopathic Traits Inventory. Results revealed a consistent interaction pattern, with girls presenting higher levels of externalizing symptoms, more motor impulsivity and a more arrogant and deceitful interpersonal style than boys in the at-risk group. In contrast, in the offenders' group, psychopathic traits were more present in boys than in girls. Regarding internalizing problems, girls showed more depression than boys, independently of the risk group. Among offending youths, girls present equally severe externalizing problems, and problematic personality traits as boys. At-risk girls have the highest rates of difficulties across the tested domains and should therefore be specifically targeted for prevention and intervention.

Callous-unemotional (CU) traits are associated with impaired distress recognition, possibly leading to suboptimal empathy development. Evidence stems from computerized task results, having little in common with day-to-day experiences. We assessed institutionalized adolescents’ empathic accuracy in their ability to infer staff members’ emotions, using Ecological Momentary Assessment. A sample of 55 adolescents reported perceived levels of distress and anger in staff, 4 times per day over the course of 8 days. CU traits were assessed with the Youth Psychopathic Traits Inventory, and data were submitted to multilevel regression analyses. All adolescents well identified anger and distress; high CU adolescents even overestimated both anger and distress intensities. Our ecological data suggest that in real-life situations, cognitive empathy skills may compensate for high CU adolescents’ distress recognition impairment. However, this compensatory process results in the perception of excessively negative emotions.