Can we really reduce ethnic prejudice outside the lab? A meta-analysis of direct and indirect contact interventions

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 rea...

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Published in:European journal of social psychology Vol. 45; no. 2; pp. 152 - 168
Main Authors: Lemmer, Gunnar, Wagner, Ulrich
Format: Journal Article
Language:English
Published: Bognor Regis Blackwell Publishing Ltd 01.03.2015
Wiley Subscription Services, Inc
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ISSN:0046-2772, 1099-0992
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Abstract 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.
AbstractList 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.
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.
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=11371 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 John Wiley and Sons, Ltd.]
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=11371 participants) and with a delay of at least 1month (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. Copyright John Wiley & Sons. Reproduced with permission. An electronic version of this article is available online at http://www.interscience.wiley.com
Author Wagner, Ulrich
Lemmer, Gunnar
Author_xml – sequence: 1
  givenname: Gunnar
  surname: Lemmer
  fullname: Lemmer, Gunnar
  email: Correspondence to: Gunnar Lemmer, Philipps-University Marburg, Department of Psychology, Gutenbergstrasse 18, 35032 Marburg, Germany., gunnar.lemmer@uni-marburg.de
  organization: Department of Psychology, Philipps-University Marburg, Germany
– sequence: 2
  givenname: Ulrich
  surname: Wagner
  fullname: Wagner, Ulrich
  organization: Department of Psychology and Center of Conflict Studies, Philipps-University Marburg, Germany
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Snippet 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 present meta-analysis tested the effectiveness of contact-based interventions for the reduction of ethnic prejudice. Up to now, a meta-analysis summarizing...
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StartPage 152
SubjectTerms Attitudes
Conflict
Contextual analysis
Ethnic Groups
Ethnic minorities
Ethnic Relations
Ethnicity
Group identity
Intergroup contact
Intergroup Relations
Intervention
Interventionism
Meta-analysis
Minority Groups
Prejudice
Psychology
Racial prejudice
Social conditions & trends
Social Contact
Social Psychology
Systematic review
Title Can we really reduce ethnic prejudice outside the lab? A meta-analysis of direct and indirect contact interventions
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https://onlinelibrary.wiley.com/doi/abs/10.1002%2Fejsp.2079
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Volume 45
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