Relating pattern deviancy aversion to stigma and prejudice

What predicts people's powerful and universal dislike of social deviancy? Across six studies, aversion towards non-social pattern deviancy, for example, a row of triangles with one triangle out of line, predicted aversion towards stigmatized individuals, social norm breakers, statistically negative and positive deviants, and a racial minority group (Black individuals). The relationship between pattern deviancy and social deviancy aversion emerged across explicit and implicit measures, across cultures (United States and China), and was of a moderately large magnitude (meta-analytic effect size: d = 0.68). Studies 7 and 8 examined developmental differences. Older but not younger children's pattern deviancy aversion related to their dislike of social norm breakers. Although non-social pattern deviancy and social deviancy judgements may seem distinct given their differing domains, people's aversion towards non-social pattern deviancy and social deviancy consistently overlapped. These findings raise the possibility that pattern deviancy aversion plays an important role in stigmatization and prejudice.