Peter K. Jonason, PhD Western Sydney University, Australia
Keynote Lecture: A World Shrouded in Darkness: The Dark Triad Dirty Dozen around the World Friday, April 6th | 15:45-16:45 | Wóycickiego Campus
There has been growing interest in examining the traits of psychopathy, Machiavellianism, and narcissism in various fields of research like organizational and social psychology. However, the research tends to suffer from its nascent state of development with few cross-cultural studies. Instead, the research predominantly uses North American and Western European samples with notable exceptions in Serbia, Germany, French-Canada, Italy, Turkey, Russia, Poland, and Japan where validated translations already exist. In 11,195 people and 50 countries, we translated and validated the Dirty Dozen measure of the Dark Triad traits. Multi-Groups Confirmatory Factor Analyses revealed that the best fit for the twelve items, in each country and overall was a three-dimensional model, one dimension per trait (CFI = 0.92, RMSEA = .07). This fit had fair configural and metric invariance; where the former fit was the best overall. The configural, metric, and scalar invariances were acceptable-to-good when comparing across the men and women and around the world. Internal consistency analyses (i.e., Cronbach’s alphas) suggests each set of items holds together well (.74 to .85) globally. Construct validity was affirmed by sex differences in the traits (Mean Cohen’s d = 0.43) and associations with disagreeableness (rs = -.12 to -.35) and limited conscientiousness (rs = -.05 to -.18). Together, this evidence tells the story of a stable, reliable, and valid measure of personality that is ready for use around the world.