Psychopathy and Antisocial Personality Disorder
In accordance, Masters & Robertson (1990) argued that diagnosed conduct disorders in childhood and antisocial personality in adulthood significantly overlap with criminality, however, not to the extent that these human tendencies should be equated.
Psychopathy Eysenck & Eysenck (1964), combined biological and individual factors in an attempt to describe crime and introduced a personality variable namely psychoticism, which was marked by aggression, coldness and with an impersonal behavior associated with criminal behavior. Blair et al (1995) conducted a study on emotions and found that while psychopathic subjects are not necessarily criminal, they do have the nature and emotional character that greatly increases their chances of repeatedly becoming involved in crime. In addition, Hare et al (1988) characterized psychopathy in terms of two major clusters of behavioral tendencies. The first cluster includes tendencies toward manipulative, callous, and nonempathetic behavior toward others, and the second, includes tendencies to be impulsive and irresponsible in daily activities. It is important to notice that individuals that are diagnosed as psychopathics, exhibit such characteristics to extreme degrees (Wilson and Hernstein, 1985). Psychopathy is most commonly assessed with the Psychopathy checklist revised (PCL-R) defined by psychologist Robert D. Hare (Hare, 1991).