Intergroup Contact Theory

A social-psychology theory, originating with Gordon Allport's 1954 contact hypothesis and elaborated by Pettigrew, Tropp, and others, which holds that positive, meaningful interaction between members of different social groups reduces prejudice and increases acceptance — mediated by enhanced out-group knowledge, reduced anxiety, and increased empathy. ICT underpins much research on disability allyship, cross-cultural design, and inclusive community-building, and is frequently cited in accessibility HCI as a justification for participatory and co-design practices that bring non-disabled designers into sustained contact with disabled users. Self-disclosure is one of ICT's named mechanisms: honest personal sharing by out-group members fosters trust with in-group audiences.