In it , he explores the nature of psychopathic behaviour , learning how to apply the Hare Psychopathy Checklist , and investigating its reliability .
The Psychopath Test : A Journey Through the Madness Industry ( 2011 ) is Ronson 's fifth book .
In it , Ronson explores the nature of psychopathic behaviour , learning how to apply the Hare Psychopathy Checklist , and investigating its reliability .
The Psychopath Test : A Journey Through the Madness Industry ( 2011 ) is Ronson 's fifth book .