" We do not diagnose members of the general public as psychopaths (although we can say that someone scores among the top 5 per cent of the general population on psychopathic traits, for example). Similarly, a child will not receive a diagnosis of psychopathy, but we can index those at highest risk of developing the condition by selecting children with conduct disorder who also display clinically concerning levels of psychopathic traits. "

― Essi Viding , Psychopathy: A Very Short Introduction