It’s what’s inside that counts: how dark triad traits mediate gender differences in prosocial behavior

This study examined whether gender differences in empathy and prosocial behavior operate through Dark Triad personality traits. By treating personality as the mediator, we move beyond male–female comparisons and provide a clear, culturally relevant explanation for when and why gender-linked helping patterns emerge. Using convenience sampling, 323 Chinese undergraduates (133 males, 190 females) completed validated self-report questionnaires: the Questionnaire of Cognitive and Affective Empathy (QCAE), the Prosocial Tendencies Measure (PTM), and the Dirty Dozen (DD). Mediation and sequential mediation analyses were conducted using SPSS and Mplus. Empathy did not differ by gender. However, psychopathy significantly mediated the link between gender and both empathy dimensions. Machiavellianism and psychopathy mediated gender differences in anonymous and compliant prosocial behaviors. A sequential pathway showed that psychopathy reduced affective empathy, which in turn lowered altruistic behavior among men. Gender showed little direct association with empathy and prosocial behavior once Dark Triad traits were accounted for; psychopathy (and, for some domains, Machiavellianism) mediated the observed differences. These findings suggest that research on prosociality should prioritize underlying personality mechanisms rather than gender per se.