Discussions of intergroup behavior (e.g., Rabbie and Wilkens, 1971; Tajfel, Flament, Billig and Bundy, 1971) have drawn attention to the influence of both assumed similarity and anticipated future interaction between an individual and other members of his group on his tendency to assign more favourable outcomes to members of his own group than to members of another group. This note examines whether similar processes may also affect an individual's tendency to make intragroup discriminations between different members of a group to which he himself does not belong, in a situation where the variables of similarity and anticipated interaction may be treated as independent factors.