Group membership, strength of group identification and perceptions of violence for locations in Northern Ireland

118 undergraduate students, all of Northern Irish origin, were asked to rate 60 locations in Northern Ireland for violence and denominational composition. As expected from Social Identity Theory, subjects perceived ingroup locations as less violent than outgroup ones. Contrary to expectations, however, there was no increased differentiation of violence judgements with increasing strength of identity, for which two possible explanations were considered.