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Forsman, Mats; Lichtenstein, Paul; Andershed, Henrik; Larsson, Henrik – Journal of Child Psychology and Psychiatry, 2010
Background: Antisocial behaviour may partly develop as a consequence of psychopathic personality. However, neither the direction of effects nor the aetiology of the association has previously been clarified. The aim in this study was to investigate the direction of effects between psychopathic personality and antisocial behaviour, and to…
Descriptors: Adolescent Development, Antisocial Behavior, Personality, Longitudinal Studies
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Forsman, Mats; Larsson, Henrik; Andershed, Henrik; Lichtenstein, Paul – British Journal of Developmental Psychology, 2007
This study tested if persistent externalizing behaviour and symptoms of Attention Deficit Hyperactivity Disorder (ADHD) in childhood are associated with personality and behavioural aspects of the psychopathic personality constellation in adolescence. The target sample consisted of all 1,480 twin pairs born in Sweden between 1985 and 1986.…
Descriptors: Attention Deficit Hyperactivity Disorder, Twins, Personality Traits, Foreign Countries
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Tuvblad, Catherine; Grann, Martin; Lichtenstein, Paul – Journal of Child Psychology and Psychiatry, 2006
Background: Socioeconomic status is often assumed to be of importance for the development of antisocial behavior, yet it explains only a fraction of the variance. One explanation for this paradox could be that socioeconomic status moderates the influence of genetic and environmental effects on antisocial behavior. Method: TCHAD is a Swedish…
Descriptors: Twins, Socioeconomic Status, Intervention, Employment Level