Is in-group bias culture-dependent? A meta-analysis across 18 societies.

Springerplus · 2016 · PMC4723375 · PMID 26839763

Europe PMC DOI

hedged sentences

0.0001

closest p · 0.0× alpha

0.0700

boldest claim

The sentences

highly significantp < 0.0001actually significant

This bias was highly significant: z = 17.37, p < 0.0001.

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marginally significantp = 0.07so close (0.05 < p ≤ 0.1)

Removing year from the equation, status remained significant (γ = 0.050, t robust = 4.54, p = 0.001) and type became marginally significant (γ = 0.096, t robust = 1.92, p = 0.07).

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