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

2015 ◽  
Vol 45 (2) ◽  
pp. 152-168 ◽  
Author(s):  
Gunnar Lemmer ◽  
Ulrich Wagner
Keyword(s):  
Meta Analysis ◽  
Indirect Contact ◽  
Ethnic Prejudice

scholarly journals Sibling Relation, Ethnic Prejudice, Direct and Indirect Contact: There is a Connection?

2015 ◽  
Vol 11 (4) ◽  
pp. 664-676 ◽  
Author(s):  
Sara Alfieri ◽  
Elena Marta
Keyword(s):  
Young People ◽  
Direct Contact ◽  
Ad Hoc ◽  
Indirect Contact ◽  
Ethnic Prejudice ◽  
Mixed Anova

The literature on the socialisation of prejudice has concentrated on “vertical” processes (from parents to children), ignoring siblings’ contribution. This work aims to investigate the effect of contact (direct or indirect) with the outgroup that young people experience a) directly or b) indirectly through older or younger siblings’ friendships. Our hypotheses are a) that young people with friends in the outgroup will report lower prejudice levels (direct contact), as will young people who have older or younger siblings with friends in the outgroup (indirect contact); b) that other forms of contact such as having classmates/coworkers, neighbours, or employees are not effective in reducing either direct or indirect prejudice. 88 sibling dyads were administered the blatant and subtle prejudice questionnaire (Pettigrew & Meertens, 1995) and some ad hoc items aimed at investigating the typology of the contact experienced. The analysis of mixed ANOVA reveals that the first hypothesis was partially confirmed in that prejudice (subtle for the younger sibling and blatant for the older one) decreases in a statistically significant way only when there is the co-presence of direct and indirect contact. The second hypothesis is fully confirmed as no statistically significant differences emerged between the groups.

scholarly journals The contact hypothesis re-evaluated

2017 ◽  
Author(s):  
Elizabeth Levy Paluck ◽  
Seth Ariel Green ◽  
Don Green
Keyword(s):  
Outcome Measures ◽  
Meta Analysis ◽  
Intergroup Contact ◽  
Racial Prejudice ◽  
The State ◽  
Contact Hypothesis ◽  
Random Assignment ◽  
Policy Perspective ◽  
Ethnic Prejudice

This paper evaluates the state of contact hypothesis research from a policy perspective. Building on Pettigrew and Tropp’s (2006) influential meta-analysis, we assemble all intergroup contact studies that feature random assignment and delayed outcome measures, of which there are 27 in total, nearly two-thirds of which were published following the original review. We find the evidence from this updated dataset to be consistent with Pettigrew and Tropp’s (2006) conclusion that contact “typically reduces prejudice." At the same time, our meta-analysis suggests that contact’s effects vary, with interventions directed at ethnic or racial prejudice generating substantially weaker effects. Moreover, our inventory of relevant studies reveals important gaps, most notably the absence of studies addressing adults’ racial or ethnic prejudice, an important limitation for both theory and policy. We also call attention to the lack of research that systematically investigates the scope conditions suggested by Allport (1954) under which contact is most influential. We conclude that these gaps in contact research must be addressed empirically before this hypothesis can reliably guide policy.

The Relationships of Intergroup Ideologies to Ethnic Prejudice: A Meta-Analysis

2018 ◽  
Vol 23 (3) ◽  
pp. 207-237 ◽  
Author(s):  
Bernard E. Whitley ◽  
Gregory D. Webster
Keyword(s):  
United States ◽  
Meta Analysis ◽  
Experimental Studies ◽  
Effect Sizes ◽  
Future Research ◽  
Methodological Issues ◽  
Ethnic Prejudice ◽  
Majority Group ◽  
Explicit Prejudice ◽  
Group Members

This meta-analysis summarizes the results of research on the relationships of majority group members’ endorsement of assimilation, colorblindness, multiculturalism, and the relative relationships of colorblindness and multiculturalism to ethnic prejudice. Random effects analyses found that assimilation was positively related to explicit prejudice ( g. = 0.80), multiculturalism was negatively related to both explicit ( g. = −0.26) and implicit prejudice ( g. = −0.19), and colorblindness was negatively related to explicit prejudice ( g. = −0.07). Multiculturalism was more closely associated with low prejudice than colorblindness ( g. = 0.15). Effect sizes varied as a function of methodology (experimental vs. correlational), country in which research was conducted (United States vs. other countries), and, in experimental studies of multiculturalism, type of prime used (abstract vs. concrete). Discussion points include methodological issues, groups used as targets of prejudice, national diversity norms, additional issues raised in the studies reviewed, and directions for future research.

The effects of low-ratio n-6/n-3 PUFA on biomarkers of inflammation: a systematic review and meta-analysis

2021 ◽  
Author(s):  
Yali Wei ◽  
Yan Meng ◽  
Na Li ◽  
Qian Wang ◽  
Liyong Chen
Keyword(s):  
Systematic Review ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acid ◽  
Meta Analysis ◽  
Chain Polyunsaturated Fatty Acid ◽  
Inflammation Markers ◽  
Pufa Supplementation ◽  
Long Chain

The purpose of the systematic review and meta-analysis was to determine if low-ratio n-6/n-3 long-chain polyunsaturated fatty acid (PUFA) supplementation affects serum inflammation markers based on current studies.

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