We conducted a longitudinal study to test whether, in addition to being predicted by personality, intergroup contact is longitudinally associated with personality traits.Participants were 388 majority (Italian) and 109 minority (immigrant) first-year highschool students. Results revealed a bidirectional relationship between contact and personality: quality of contact was longitudinally associated with greater agreeableness and openness to experience, while agreeableness and openness to experience were longitudinal predictors of contact quality. An unexpected negative longitudinal association also emerged between quantity of contact and agreeableness. These effects were not moderated by group of belonging (majority vs. minority). Our findings highlight the importance of integrating research on intergroup contact with research on personality.Keywords: intergroup contact, personality, Big Five, prejudice, intergroup relations, longitudinal.Decades of research have convincingly demonstrated that the contact hypothesis is one of the most effective situational approaches for reducing prejudice (Allport, 1954; Hodson & Hewstone, 2013;Pettigrew & Tropp, 2006; Vezzali & Stathi, 2017). showing that personality has a longitudinal effect on intergroup contact. In order to test our hypotheses, we adopted a longitudinal design by considering ethnic majority and minority members enrolled in the first year of high-school. To our knowledge, this is the first study to examine the longitudinal relationship between contact and personality variables and to test the hypothesis that contact is associated with personality over time.
The contact hypothesisThere is now substantial evidence showing that intergroup contact is an effective tool for reducing prejudice (Hodson & Hewstone, 2013). The meta-analysis by Pettigrew and Tropp (2006), taking into account 515 studies and more than 250,000 participants, demonstrated that contact is negatively associated with prejudice, and this effect is more pronounced when Allport's (1954) contact conditions (equal status, cooperation, common goals, and institutional support) are present. Moreover, contact effects are not limited to the outgroup members encountered; instead, they generalise