You gotta fight! – Why norm-violations and outgroup criticism lead to confrontational reactions

Group members frequently face group-related discrepancies, such as other group members violating group norms or outgroup members criticising the ingroup. In response, they often engage in confrontational reactions like expressing disapproval or excluding the person causing the discrepancy. The present work tests the often voiced but rarely studied idea that group-related discrepancies are met with such confrontational responses because...