Acculturation processes and intergroup relations of adolescents in multicultural societies: the role of family, peer, and school contexts

Acculturation processes and intergroup relations lie at the heart of developing more inclusive social attitudes. Notably, these endeavors are embedded in primary socialization contexts of adolescents, as indicated by developmental and socio-psychological theoretical models reviewed in Chapter 1. Hence, this dissertation investigated how adolescents' acculturation processes and intergroup contact are embedded in family, peer, and school contexts. Accordingly, Chapter 2 indicated the combined effects of the perceived parents' acculturation orientations and classmates' acculturation preferences on adolescents' own acculturation orientations in Italy and Turkey. Chapter 3 showed that adolescents could be classified into one of four latent growth trajectory classes (i.e., ethnic-oriented, national-oriented, dual, and marginalized identities), which could be predicted by social identification with family and classmates. Chapter 4 highlighted that adolescents' cross-ethnic friendships mediated the positive associations of parents' cross-ethnic friendships with adolescents' psychological and social adjustment beyond the positive relationships between parents' and adolescents' friendships. Multiple studies conducted in Chapter 5 confirmed that a newly developed questionnaire (i.e., ICIS-Short Version) is a reliable tool to measure positive and negative contact among ethnic minority and majority adolescents. Chapter 6 revealed that teachers' equal treatment increased positive and decreased negative contact among ethnic minority and majority adolescents. Moreover, Chapter 7 indicated that adolescents’ positive and negative contact in the school context were related over time to higher corresponding positive and negative contact in out-of-school contexts and vice versa, while their positive contact in the school context was linked over time to lower levels of negative contact in the out-of-school contexts. Eventually, Chapter 8 strived to summarize and discuss these findings in light of social inclusivity. Overall, this dissertation tapped into the paramount importance of family, peer, and school contexts to provide a unique resource for adolescents to cope with acculturative challenges that go beyond the normative developmental tasks of adolescence.