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the claim

Diversity in groups reduces polarization.

the verdict
CONTESTED PARTIAL
Recorded sources
3 sources for · 2 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that diversity in groups reduces polarization?

Partly. Two reference works state that diversity and dissent within groups reduce polarization, and a study reports that individuated outgroup contact reduces biased meta-perceptions. Against this, a simulation study and a civil-war review associate reduced diversity or ethnic diversity with stability or conflict respectively, though neither directly measures polarization.

Verdict: CONTESTED PARTIAL · 3 sources for, 2 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 3
From Groups to Individuals: How Identifiability Reduces Biased Meta‐Perceptions and Polarization
2026
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Bruck, A. & Ritov, I. (2026). From Groups to Individuals: How Identifiability Reduces Biased Meta‐Perceptions and Polarization. doi.org. https://doi.org/10.1111/jasp.70069

Evidence against · 2
Modeling Emotional Dynamics in Social Networks: Uncovering the Positive Role of Information Cocoons in Group Emotional Stabilization
2026
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Modeling Emotional Dynamics in Social Networks: Uncovering the Positive Role of Information Cocoons in Group Emotional Stabilization. (2026). doi.org. https://doi.org/10.1109/tcss.2025.3593424

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More for · 2
TheEncyclopediaOfHumanBehaviour
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TheEncyclopediaOfHumanBehaviour. (n.d.). archive.org. https://archive.org/details/TheEncyclopediaOfHumanBehaviour

theblackwellencyclopediaofsociology
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theblackwellencyclopediaofsociology. (n.d.). archive.org. https://archive.org/details/theblackwellencyclopediaofsociology

More against · 1
Incidence, onset and duration of civil wars: A review of the evidence
2009
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Incidence, onset and duration of civil wars: A review of the evidence. (2009). hdl.handle.net. http://hdl.handle.net/10419/65452

Receipt History
held for human review17 Oct 2026
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