Milieu effects on the Dark Triad traits and their sex differences in 49 countries

Peter K. Jonason, Stanisław K. Czerwiński, Francesca Tobaldo, Jano Ramos-Diaz, Mladen Adamovic, Byron G. Adams, Rahkman Ardi, Sergiu Bălțătescu, Yeow Siah Cha, Phatthanakit Chobthamkit, Sofián El-Astal, Katherine Gundolf, Tomislav Jukić, Emil Knezović, Kadi Liik, John Maltby, Agim Mamuti, Taciano L. Milfont, Rodrigo Moreta-Herrera, Joonha ParkJarosław Piotrowski, Adil Samekin, Habib Tiliouine, Robert Tomšik, Charles Umeh, Kees van den Bos, Christin Melanie Vauclair, Anna Włodarczyk, Illia Yahiiaiev, Magdalena Żemojtel-Piotrowska, Constantine Sedikides

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Resumen

Most research on the development of personality traits like the Dark Triad (i.e., narcissism, Machiavellianism, and psychopathy) focuses on local effects like parenting style or attachment, but people live in a larger society that may set the stage for any local effects. Here we paired nation-level data on the traits from 49 nations with several milieu indicators (e.g., life expectancy, homicide rates) from three timepoints (and change among them) where the average participant (≈ 22yo) would have been a child (≈ 6yo), a pre-teen (≈ 11yo), and a teenager (≈ 16yo). Congruent with previous research, variance in narcissism was far more sensitive to variance in milieu conditions in general and across all three time points than variance in Machiavellianism or psychopathy. The milieu conditions differentiated the traits somewhat with income and education revealing negative correlations with narcissism, positive correlations with Machiavellianism, and null correlations with psychopathy. Sex differences in Machiavellianism and narcissism were correlated with homicide rates across the three timepoints. The evidence that changes in milieu conditions in ones' past predicts the traits was erratic, but larger sex differences in the traits were associated with decreased life expectancies and homicide rates between childhood and pre-teens.

Idioma originalInglés
Número de artículo111796
PublicaciónPersonality and Individual Differences
Volumen197
DOI
EstadoPublicada - oct. 2022

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