Different functions within different forms of aggression were examined in relation to peer-perceived preference and popularity among middle school students. Two hundred and three 7th grade students were nominated by a subset of their grade mates based on indices of likeability, popularity, and aggressiveness. Both linear and curvilinear associations were examined. Lower peer preference, but higher popularity, was associated with increased levels of all types of aggression, supporting the need to differentiate the relationship between aggression and these two facets of peer status. Relational aggression was associated with both low and high levels of popularity. Overt aggression was related to low peer preference and, to a lesser degree, high peer preference. It appears that what separates low-and high-status students is not the presence of aggression per se, but how effectively their displays of aggression achieve their social goals. Findings are discussed in respect to social dominance theory, and implications for practice are considered. C 2008 Wiley Periodicals, Inc.