Religious upbringing predicts higher prejudice than no religious affiliation.

Evidence

Allport’s own research on US college students in the mid-1940s revealed far higher prejudice among those who reported that religion was a marked or moderate influence in their upbringing than among those who reported that the influence of religion was slight or nonexistent (Allport & Kramer, 1946). Many subsequent studies also found that individuals with no religious affiliation showed less prejudice than did church members (for a review, see Batson, Schoenrade, & Ventis, 1993, pp. 297–302.) These findings suggest that religion makes prejudice. — John F. Dovidio, Peter Glick, Laurie A. Rudman, On the Nature of Prejudice, 2526

Categorization

• corroborated: 3 independent passages support this claim — John F. Dovidio, Peter Glick, Laurie A. Rudman, On the Nature of Prejudice: Fifty Years…, 2526
• XREF: connects to: Strong religious identification predicts derogation of out-group members rather than anti-prejudice conviction. — Deborah L. Hall and David C. Matz and Wendy Wood, Why Don’t We Practice What We Preach? A…, 11; Religion simultaneously enables both prosocial conduct and prejudice. — Annetta Snell and Miron Zuckerman and Bonnie M. Le, Does Religious Priming Induce Greater…, 2; Religion fuels prejudice against value-violating groups but restrains prejudice against racial groups. — Annetta Snell and Miron Zuckerman and Bonnie M. Le, Does Religious Priming Induce Greater…, 17 (+4 more)