Analyses of the PCL-R reveal that it comprises at least three overlapping, but separable, constellations of traits:
interpersonal deficits (such as grandiosity, arrogance and deceitfulness),
affective deficits (lack of guilt and empathy, for instance), and
impulsive and criminal behaviors (including sexual promiscuity and stealing).
Recently, a small study showed that
bosses are four times more likely to be psychopaths than the general population. The finding was reported in the book
Snakes in Suits: When Psychopaths Go to Work. However, the number of psychopaths among business bosses is still low -- comprising 4 percent of them, in the study -- while 1 percent of the general population have psychopathic tendencies.