This research paper explores the "Dark Triad" of personality traits: narcissism, Machiavellianism, and psychopathy. The authors challenge the idea that these three constructs are equivalent in normal populations, arguing instead that they are overlapping but distinct. They measured these traits in a sample of students using established scales and investigated their correlations with Big Five personality traits, cognitive abilities, and self-enhancement measures. The results indicate that each trait possesses unique characteristics with varying levels of self-enhancement and cognitive ability. While they share a common core of disagreeableness, psychopathy stands out as the most treacherous of the three due to its lack of anxiety. The authors conclude that separate measurement of these traits is warranted, even in non-clinical populations.
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