Group-serving bias

Group-serving bias is identical to self-serving bias except that it takes place between groups rather than individuals, under which group members make dispositional attributions for their group's successes and situational attributions for group failures, and vice versa for outsider groups.

For instance, the fundamental attribution error is a self-serving bias, while the group attribution error is a group-serving bias. Perhaps the most basic form of group-serving bias is ingroup bias.