The Diversity Challenge for High and Low Authoritarians: Multilevel and Longitudinal Effects through Intergroup Contact and Threat

The current studies integrate different frameworks on the positive and negative consequences of ethnic diversity for intergroup relations. Using a nationally stratified sample of Dutch majority members (N = 680) from 50 cities in the Netherlands, Study 1 demonstrated that objective diversity was indirectly related to prejudice and to generalized, ingroup, and outgroup trust, through more positive and more negative contact. These indirect effects tended to be stronger for high versus low authoritarians. Furthermore, perceived diversity was indirectly related to less trust and greater prejudice, via more negative contact and threat. Again, these associations were more pronounced among high authoritarians. Study 2, using a representative sample of German majority members (N = 412) nested within 237 districts, replicated the cross-sectional results regarding objective diversity and prejudice. In addition, longitudinal analyses indicated that objective diversity predicted more positive and more negative contact 2 years later, though only among moderate and high authoritarians.