Millions recently flocked to the movies to watch Joker, the origin story of Batman’s notorious nemesis. Many have commented that the film is a portrait of a textbook psychopath. But perhaps the bigger question is how many among the audience have similar traits? Indeed, is it possible that you are a psychopath yourself?

To answer this question, we need to examine the diagnostic criteria for psychopathy presented in the PCL-R, which was developed by Robert Hare in the 1970s.

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