Collective deprivation, connectedness to mainstream society (friendship and psychological closeness to majority individuals) and in-group identity factors (i.e. strength of in-group identity, and perceived in-group superiority) were investigated among Muslim Dutch youth of Turkish and Moroccan descent, in relation to their attitudes toward violence in defense of religion or ethnicity, and the willingness to use such violence. Data come from a sample of students (N = 398, age 14-18 years). Results show that perceptions of in-group superiority were predicted by higher connectedness to the in-group and lower connectedness to Dutch society in both ethnic groups and by collective relative deprivation among Moroccan-Dutch participants only. In bo...