Williams’s 1947 propositions anticipated Allport’s optimal-contact conditions

Evidence

Based on the scant research available, Williams (1947) stressed that intergroup contact would maximally reduce prejudice when: (a) the two groups share similar status, interests, and tasks; (b) the situation fosters personal, intimate intergroup contact; (c) the participants do not fit the stereotyped conceptions of their groups; and (d) the activities cut across group lines. These general principles will be familiar to anyone versed in Gordon Allport’s framework. — , Rudman, Laurie A - On the Nature of…, 1661

Categorization

• XREF: Confirms Williams 1947 as the true origin of the optimal conditions Allport later systematized in 1954 — relevant to any genealogy of contact theory in the vault.
• ADDENDUM: Supplies the pre-Allport provenance for the optimal-conditions formulation, useful background to the contact-theory reassessment thread.