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Research on the relationship between the percentage of an ethnic minority population in a geographically defined area and majority members' prejudice typically reveals a positive covariation. This result supports threat theory. Recent studies, however, have demonstrated significant exceptions. Based on intergroup contact theory, the present study demonstrates with a German probability sample that an increase in the percentage of ethnic minority members affords the majority greater opportunity for intergroup contact and thus reduces the majority's prejudice. These results also falsify frequent political claims that an increase in the minority population above a particular threshold necessarily worsens intergroup relations. The data are discussed in the context of the divergence of our results from those of other studies. Whether threat or contact effects occur may depend on an array of moderators that require further testing.

The social identity approach is a powerful theoretical framework for the understanding of individuals' behaviour. The main argument is that individuals think and act on behalf of the group they belong to because this group membership adds to their social identity, which partly determines one's self-esteem. In the organizational world, social identity and self-categorization theories state that a strong organizational identification is associated with low turnover intentions. Because identification is the more general perception of shared fate between employee and organization, we propose that the relationship between identification and turnover will be mediated by job satisfaction as the more specific evaluation of one's task and working conditions. In four samples we found organizational identification feeding into job satisfaction, which in turn predicts turnover intentions.

The present meta‐analysis tested the effectiveness of contact‐based interventions for the reduction of ethnic prejudice. Up to now, a meta‐analysis summarizing the results of real‐world interventions that rest on the intergroup contact theory has been missing. We included evaluations of programs realizing direct (i.e., face‐to‐face) and/or indirect (i.e., extended or virtual) contact in real‐world settings outside the lab. The interventions' effectiveness was tested shortly after their end (k = 123 comparisons, N = 11 371 participants) and with a delay of at least 1 month (k = 25, N = 1650). Our data show that contact interventions improve ethnic attitudes. Importantly, changes persist over time. Furthermore, not only direct but also indirect contact interventions are successful. In addition, contact programs are effective even in the context of a serious societal conflict (e.g., in the Middle East). Although changes are typically larger for ethnic majorities, there is an impact on minorities, too. Finally, contact interventions not only improve attitudes toward individuals involved in the program, their effects also generalize to outgroups as a whole. In sum, social psychology provides an intervention for prejudice reduction that can be successfully implemented in the practical field. Copyright © 2015 John Wiley & Sons, Ltd.

We assessed evidence for a contextual effect of positive intergroup contact, whereby the effect of intergroup contact between social contexts (the between-level effect) on outgroup prejudice is greater than the effect of individual-level contact within contexts (the within-level effect). Across seven large-scale surveys (five cross-sectional and two longitudinal), using multilevel analyses, we found a reliable contextual effect. This effect was found in multiple countries, operationalizing context at multiple levels (regions, districts, and neighborhoods), and with and without controlling for a range of demographic and context variables. In four studies (three cross-sectional and one longitudinal) we showed that the association between context-level contact and prejudice was largely mediated by more tolerant norms. In social contexts where positive contact with outgroups was more commonplace, norms supported such positive interactions between members of different groups. Thus, positive contact reduces prejudice on a macrolevel, whereby people are influenced by the behavior of others in their social context, not merely on a microscale, via individuals' direct experience of positive contact with outgroup members. These findings reinforce the view that contact has a significant role to play in prejudice reduction, and has great policy potential as a means to improve intergroup relations, because it can simultaneously impact large numbers of people. diversity | trust | social norms | multilevel analysis

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This article explores the connections between prejudice and specific attitudes toward acculturation in Germany. Results of surveys confirm the hypothesis that prejudice is related to ideologies of assimilation and segregation among majoritygroup members. Moreover, experimental and correlational studies indicate that these attitudes are linked to discriminatory behavior. Further analyses of studies with ethnic minorities prove that prejudice and acculturation are linked within minority groups as well. Additionally it is shown that prejudice is functional in order for minorities to acculturate. These studies confirm the impression that there is a close link between macrosocial and microsocial levels of coping with migration. 541