Machiavellianism, self-monitoring, self-promotion and relational aggression on Facebook

•Machiavellian men and women engage in higher levels of self-monitoring.•Machiavellian women are more dishonest in their self-promotion.•Machiavellian women engage in relational aggression online.•Machiavellian men engage in more online self-promotion.

Machiavellianism is a personality trait characterized by cynicism, emotional detachment and a willingness to manipulate others. Research investigating the behavior of Machiavellian men and women has focused on its influence in offline relationships. The popularity of social networking sites suggests that it is also important to consider the interactions of Machiavellian men and women in this context as well. Men (N = 54) and women (N = 189) completed questionnaires assessing Machiavellianism, self-monitoring, self-promotion and relational aggression. Analyses revealed that women who were high in Machiavellianism engaged in more dishonest self-promotion and relational aggression towards a close friend on Facebook whilst males with high levels of Machiavellianism engaged in more self-promoting behavior. In addition, both men and women high in Machiavellianism engaged in more self-monitoring. The findings demonstrate the importance of considering the influence of personality on online behavior and associated gender differences.