This study analyzes the relationships between impulsivity and antisocial behavior in a noninstitutionalized sample, taking into account the multidimensional nature of impulsivity and the diversity of types of antisocial behavior. Data were obtained in 1989 and 1990 from 1,226 adolescents aged 12-18 years (583 boys and 643 girls) as part of a longitudinal study of risk factors for drug abuse and delinquency. The patterns of stability or change of the various dimensions of antisocial behavior (rule breaking, vandalism, theft, aggression, and drug taking) in relation to impulsivity were investigated. The results support that self-report measures of impulsivity are closely correlated with antisocial behavior among adolescents. The longitudinally oriented analysis of this work also shows that impulsivity is associated with a future increase in antisocial behavior.

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The Proposed Specifiers for Conduct Disorder (PSCD) scale (Salekin & Hare, 2016) was developed as a measure of the broader construct of psychopathy in childhood and adolescence. In addition to conduct disorder (CD) symptoms, the PSCD addresses the interpersonal (grandiose-manipulative), affective (callousunemotional), and lifestyle (daring-impulsive) traits of psychopathic personality. The PSCD can be scored by parents and teachers. The present study is a preliminary test of the psychometric properties of the PSCD-Parent Version in a sample of 2,229 children aged 3 to 6 years. Confirmatory factor analyses supported both a 3-and 4-factor structure being invariant across gender groups. The validity of the PSCD was also supported by convergent-divergent associations with an alternative measure of psychopathic traits as well as by the expected relations with fearlessness, conduct problems, reactive and proactive aggression, attention-deficit hyperactivity disorder and oppositional defiant disorder symptoms, and social competence skills. Overall, the PSCD is a promising alternative measure for assessing early manifestation of the broader construct of psychopathy in children. Its use should facilitate discussion of the conceptualization, assessment, predictive value, and clinical usefulness of the psychopathic construct as it relates to CD at early developmental stages. Public Significance StatementThis study was the first to test the psychometric properties of the Proposed Specifiers for Conduct Disorder (PSCD) scale. The PSCD offers an alternative and potentially psychometrically sound assessment of the full array of child and adolescent psychopathic traits and dimensions in addition to conduct disorder (CD) symptoms. Research with the PSCD could help to better understand the potential for additional CD specifiers.