It is also considered to be the most accurate predictor of violent behavior that we have. It is a complex clinical tool that is only used by experts in the field. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization.The Robert Hare Psychopathy Checklist - Revised is considered by clinicians and researchers worldwide to be the 'gold standard' in assessing psychopathy. By using this site, you agree to the Terms of Use and Privacy Policy.