Three factors of the Intrasexual Competition Scale?

Peter K. Jonason, Stanisław K. Czerwiński, Gayle Brewer, Cristina A. Cândea, Charlotte J.S. De Backer, Ana Maria Fernández, Justin R. Garcia, Monica A. Koehn, Daniel J. Kruger, Karlijn Massar, Elisabeth Oberzaucher, Katinka J.P. Quintelier, Zuzana Štěrbová, Renske E. van Geffen, Jaroslava Varella Valentova, Marco Antonio Correa Varella, Maryanne L. Fisher

Research output: Contribution to journalArticleAcademicpeer-review


In a multinational project (N = 3707), we factor analyzed a commonly used self-report measure of intrasexual competition and found a three-dimensional system. We called these factors envy (i.e., wanting what others have), jealousy (i.e., protecting what one has), and competitiveness (i.e., beliefs that one is better). To better understand these factors and test whether the solution is sensible, we examined sex differences and correlations with the Dark Triad traits (i.e., psychopathy, narcissism, and Machiavellianism), life history strategies, and age. Results are discussed using an adaptationist lens.

Original languageEnglish
Article number112312
JournalPersonality and Individual Differences
Publication statusPublished - Oct 2023


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