Psychopathic

The Psychopathic Personality Inventory (PPI) is a widely used self-report measure designed to detect the principal personality traits of psychopathy. Revised in 2005 as the Psychopathic Personality Inventory-Revised (PPI-R), it consists of 154 items arrayed in a 4-point Likert-type format. The PPI-R, like the original PPI, yields a Total score reflecting global psychopathy as well