Structured contact programs yield consistent and stronger prejudice reduction

Evidence

Global test: Structured optimal contact. Our global predictor involves the issue of whether the contact consisted of a structured program that the researchers designed to establish Allport’s optimal conditions in the contact situation. Table 5 shows that the 134 samples with optimal contact conditions yield significantly greater reductions of prejudice (mean r .287) than do the other samples (mean r .204), QB(1) 20.19, p .0001. — Thomas F. Pettigrew, Linda R. Tropp, A Meta-Analytic Test of Intergroup…, 137

Categorization

• QUESTION: Allport’s contact-hypothesis conditions get empirical support here — worth chasing the full Table 5 breakdown and whether this replicates in more recent meta-analyses.
• ADDENDUM: Not a direct match to the three published articles, but the finding about structured ‘designed’ conditions amplifying an effect parallels the grafted-tree infrastructure thesis in ‘Grafting & Growth’ — interventions shaped by design outperform organic arrangements.
• corroborated: 2 independent passages support this claim — Thomas F. Pettigrew, Linda R. Tropp, A Meta-Analytic Test of Intergroup…, 137
• XREF: connects to: Casual tourism contact reduces prejudice far less than structured or recreational contact — Thomas F. Pettigrew, Linda R. Tropp, A Meta-Analytic Test of Intergroup…, 204

Related

• Most prejudice-reducing contact occurs outside Allport’s presumed optimal conditions. (similarity 0.92)
• Casual tourism contact reduces prejudice far less than structured or recreational contact (similarity 0.89)
• Allport’s contact conditions boost prejudice reduction more for nonracial than racial intergroup contexts (similarity 0.86)
• Allport’s optimal contact conditions facilitate but are not necessary for prejudice reduction (similarity 0.86)
• Allport’s optimal contact conditions enhance but are not necessary for reducing prejudice. (similarity 0.86)
• Intergroup contact reduces prejudice across outgroups, and Allport’s conditions are helpful but not essential. (similarity 0.85)
• Allport’s optimal contact conditions are facilitating rather than essential (similarity 0.84)
• Intergroup contact reduces prejudice even beyond the groups involved. (similarity 0.83)
• Randomized contact experiments yield near-large prejudice reduction effects. (similarity 0.83)
• Intergroup contact reduces prejudice only under four specific optimal conditions. (similarity 0.82)
• More rigorous contact studies show larger prejudice-reduction effects. (similarity 0.82)
• Institutional support matters most for contact but backfires under competition or unequal status. (similarity 0.82)
• Allport’s four contact conditions must operate together, not individually. (similarity 0.82)
• Allport focused on immediate situational causes and doubted contact would generally reduce prejudice. (similarity 0.82)
• Theorists now seek what is necessary, not just helpful, for contact success (similarity 0.82)