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Heartless and cunning? Intelligence in adolescents with antisocial behaviour and psychopathic traits

Allen, Jennifer and Briskman, Jackie and Humayun, Sajid and Dadds, Mark and Scott, Stephen (2013) Heartless and cunning? Intelligence in adolescents with antisocial behaviour and psychopathic traits. Psychiatry Research, 210. 1147–1153.

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Abstract

Clinical theory predicts that individuals high in psychopathic traits possess average or above average intelligence; however findings in adult and child samples have been mixed. The present study aimed to investigate: 1) the relationship between verbal and nonverbal intelligence and the three dimensions of psychopathy (callous-unemotional (CU) traits, narcissism, impulsivity); and 2) whether these dimensions moderate the association between verbal and nonverbal intelligence and the severity of antisocial behavior. Participants were 361 adolescents aged 9-18 years (68% boys) and their parents, drawn from four samples with different levels of risk for antisocial behavior. Families were disadvantaged and 25% were from an ethnic minority. Verbal intelligence was unrelated to parent-reported CU traits, narcissism or impulsivity after controlling for gender, sociodemographic disadvantage, sample, antisocial behavior and hyperactivity. Narcissism, but not CU traits or impulsivity, was significantly related to lower nonverbal IQ. None of the three psychopathic trait dimensions moderated the relationship between verbal or nonverbal IQ and antisocial behavior. CU traits, narcissism, hyperactivity and inclusion in the very high or high risk samples were significantly related to more severe antisocial behavior. Results contradict the widely held view that psychopathic traits are associated with better than average verbal or nonverbal intelligence.

Item Type: Article
Controlled Keywords: intellience, psychopathy, callous-unemotional, cognitive abiliity, performance IQ, verbal IQ, antisocial behaviour, Health and wellbeing
Divisions: IOE Departments > Departments > Psychology and Human Development
Depositing User: Atira Pure
Date Deposited: 11 Feb 2014 13:44
Last Modified: 29 Jan 2015 09:06
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