The Dirty Dozen: A concise measure of the Dark Triad
Jonason and Webster develop and validate a concise twelve-item measure of the Dark Triad of narcissism, psychopathy and Machiavellianism. In four studies with over one thousand participants they examine its structural reliability, convergent and discriminant validity, and test-retest reliability. The measure cuts the item count by almost nine tenths, from ninety-one items to twelve, while keeping the flexibility to measure the three related constructs and a core of disagreeableness, short-term mating and aggressiveness.
Jonason and Webster develop and validate a concise twelve-item measure of the Dark Triad of narcissism, psychopathy and Machiavellianism. In four studies with over one thousand participants they examine its structural reliability, convergent and discriminant validity, and test-retest reliability. The measure cuts the item count by almost nine tenths, from ninety-one items to twelve, while keeping the flexibility to measure the three related constructs and a core of disagreeableness, short-term mating and aggressiveness.
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Jonason, P. K., & Webster, G. D. (2010). The Dirty Dozen: A concise measure of the Dark Triad. Psychological Assessment, 22(2), 420-432. doi:10.1037/a0019265