Psychopathy is a virulent form of personality pathology that exerts a costly burden on society. Although there is a strong hereditary component to psychopathy, the environment also has an impact. One of the most salient environmental influences is trauma, although not all forms of trauma may be equally predictive of psychopathy. Many studies suggest that trauma perpetrated by someone whom the victim trusts and relies upon (i.e., betrayal trauma) has an especially robust influence on personality pathology. However, there has not yet been research examining this with respect to psychopathy specifically. In this study we examined the influence of traumas with varying degrees of betrayal on psychopathy in a sample of men and women working for Amazon's Mechanical Turk (N = 444) using partial least square structural equation modeling. Results suggest that interpersonal trauma in general was associated with psychopathy for both men and women, and that trauma high in betrayal was uniquely associated with psychopathy among men. These results clarify previous research on the association between betrayal trauma and personality pathology and on the traumatic antecedents of psychopathy in particular.
Keywords: Betrayal Trauma; personality pathology; psychopathy; trauma.