Claims

The review reports that minimal-group categorization produces in-group favoritism in resource allocation, cooperation, prosocial behavior, and evaluation

Claim · All claims
Evidence · 1 study · review r2 · q2
Currency · newest study 2010 · not yet checked against its sources · not reviewed by a person

Subclaims

Reading the evidence codes

q is the design tier, i the impact, n the sample, and the kind with its r the rigour judged within that kind: what each code means.

This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.

q2 i? The review reports that in-group members usually allocate more resources to, cooperate more with, and evaluate more positively members of their own group, even under trivial group designations. → Gehlbach 2010

Evidence

Gehlbach 2010

Gehlbach, Hunter. (2010). The social side of school: Why teachers need social psychology. Educational Psychology Review 22, no. 3: 349-362. https://doi.org/10.1007/s10648-010-9138-3

q2 · i? · review · r2

Narrative review of the minimal group paradigm, attributing findings to Devine (1995) and studies such as Sherif et al. (1961) and Galinsky and Moskowitz (2000), where even trivial labels like overestimators versus underestimators produced in-group favoritism across ten traits.

"In-group members usually allocate more resources to, are more cooperative with, and behave in more prosocial ways towards members of their own group."

Discussion

Page metadata
Field Value
type claim
id minimal-group-in-group-favoritism-reported
title The review reports that minimal-group categorization produces in-group favoritism in resource allocation, cooperation, prosocial behavior, and evaluation
description The review reports that minimal-group categorization produces in-group favoritism in resource allocation, cooperation, prosocial behavior, and evaluation
status review
evidence_strength weak
newest_evidence 2010
generated by process:wiki-ingest on 2026-10-21
trust unverified — no one has confirmed this page's content
sources 1 — gehlbach-2010

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