Mediating Effect of Moral Disengagement on the Relationship between Dark Traits of Personality and Infidelity Tendency

This study aimed to investigate the relationship between dark traits of personality with infidelity tendency and role of moral disengagement as a mediator. Hence, 204 individuals, were selected by means of multistage cluster sampling from district 8 in Tehran and completed The Dark Triad Personality Questionnaire (Jonson and Webster, 2010), Moral Disengagement Questionnaire (Bandura, 1995), and Infidelity Tendency Questionnaire (Polat, 2006). Data were analyzed using the correlation coefficient and regression analysis. Findings from analysis showed that each of dark traits of personality had significant correlation with moral disengagement and infidelity tendency variables and also moral disengagement had a significant correlation with infidelity tendency. On the other hand, traits of Narcissism and Machiavellianism in addition to direct effect by moral disengagement have indirect effect over infidelity tendency. Finally, according to findings, it can be expressed that infidelity tendency the relation between traits of Narcissism and Machiavellianism with infidelity tendency plays a mediating role.