This paper presents results of the only large-scale study carried-out in Poland to date on the
prevalence of psychopathic traits and their relationship with aggressive behaviour in …

A long tradition of theoretical and empirical work has described different variants (or
subtypes) of psychopathy, in an attempt to delineate similarities and differences among …

There is a relative dearth of research on features of schizotypal personality in children, in
part due to lack of instrumentation. This study tests 5 competing models of the factor …

Objective Adult psychopaths are thought to have risky decision‐making and behavioral
disinhibition, but little is known about the moderating effects of psychosocial factors and …

Background Previous research provides support for the existence of the psychopathy
construct in youths. However, studies regarding the psychometric properties of psychopathy …

We identified mental health outcomes associated with specific developmental trajectories of
psychopathic traits across childhood and tested whether positive relationships with parents …

Background: Quantitative genetic data from our group indicates that antisocial behaviour
(AB) is strongly heritable when coupled with psychopathic, callous‐unemotional (CU) …

H ervey Cleckley (1941/1976) proposed that an underlying deficit contributes significantly to
the etiology of psychopathy. David Lyk-ken famously hypothesized temperamental poor …

Background Understanding the etiology of adolescent problem behavior has been of
enduring interest. Only relatively recently, however, has this issue been examined within a …

The personality model of adult psychopathy by Widiger and Lynam (1998) posits that
psychopathy consists of a maladaptive constellation of personality traits, drawn from a …