People change their own attitudes when ingroup members behave inconsistently.

Evidence

People treat the ingroup as an extension of self, protecting it as they do the self. Vicarious dissonance, the finding that individuals change their attitudes when ingroup members engage in inconsistent behavior, is a clear example (Norton, Monin, Cooper, & Hogg, 2003). Just as with individual dissonance, vicarious dissonance appears to be mediated by vicarious discomfort (in this case resulting from the ingroup member’s dissonant behavior). Thus, protecting the integrity of the ingroup operates by way of emotional discomfort. — , Rudman, Laurie A - On the Nature of…, 338

Categorization

• XREF: Core mechanism for the Allport reassessment thread — ingroup-as-self-extension connects to existing claims about prejudice rooted in ingroup protection. — connects to: Humans shift collective preferences among arbitrary practices for no practical reason — W. David Marx, Status and Culture: How Our Desire for…, 14; Physical separation from a group precedes rather than follows ideological change — Amy Fisher-Smith, Charles R. Sullivan, John D. Macready, and Geoffrey Manzi, Identity Reconfiguration and the Core…, 414
• corroborated: 2 independent passages support this claim — , Rudman, Laurie A - On the Nature of…, 338