PSYCHOPATHY IS A NON-ARBITRARY CLASS

Recent evidence that psychopathy is a nonarbitrary population, such th at the trait may be categorical rather than continuous, is consistent with Mealey's distinction between primary and secondary psychopaths. T hus, there are likely to be at least two routes to criminality, and ps ychopathic and nonpsychopathic criminals are likely to respond differe ntly to interventions.