The Hare Psychopathy Checklist

copyright Insight News, May 22, 2019

In the test, a clinician interviews a potential sociopath and scores them on 20 criteria, such as “promiscuous sexual behavior” or “impulsivity.” On each criterion, the subject is ranked on a 3-point scale: (0 = item does not apply, 1= item applies somewhat, 2 = item definitely applies). The scores are summed to create a rank of zero to 40. Anyone who scores 30 and above is probably a psycho.