The association between psychopathy and delinquency in juveniles: A three-level meta-analysis

Background Psychopathy has repeatedly been linked with delinquency and criminal recidivism of adults. With the increase of studies examining psychopathic traits in juveniles, it is important to also study this association in juveniles to increase the effectiveness of preventive interventions for juvenile delinquency.
PurposeThe primary aim of the present meta-analysis was to examine the association between psychopathic traits and delinquency in juveniles. The second aim was to examine which factors (i.e., type of delinquency, type of psychopathic trait, and other study- and participant characteristics) moderate the association between psychopathy and juvenile delinquent behavior.
MethodThe data were analyzed in three-level meta-analytic models. 
Results In total, 87 studies were included, which used 74 independent samples and reported on 358 effect sizes. Psychopathy was moderately and positively associated with juvenile delinquency (r = 0.24, p < .0001). This overall association was not influenced by type of delinquency. However, stronger effect sizes were found for impulsivity traits than for callous unemotional traits. 
Conclusion Psychopathy in juveniles is associated with current and future offense behavior. Therefore, assessing psychopathy in juveniles is important for strengthening intervention efforts targeting juvenile delinquency.