The Levenson Self-Report Psychopathy scale (LSRP) is a 26-item, 4-point Likert scale, self-report inventory to measure primary and secondary psychopathy in non-institutionalised populations. It was developed in 1995 by Michael R. Levenson, Kent A. Kiehl and Cory M. Fitzpatrick. The scale was created for the purpose of conducting a psychological study examining antisocial disposition among a sample of 487 undergraduate students attending psychology classes at the University of California, Davis.