title: Costs and benefits of children's physical and relational aggression trajectories on peer rejection, acceptance, and friendships: Variations by aggression subtypes, gender, and age.
abstract: This study examined the associations between children's co-occurring relational and physical aggression trajectories and their peer relations (i.e., peer rejection, peer acceptance, and reciprocated friendships) from late childhood (Grade 4; Mage = 10.0) to early adolescence (Grade 8; Mage = 13.9). Using a sample of 477 children (240 girls), the findings indicated there were multiple heterogeneous subgroups of children who followed distinct co-occurring aggression trajectories. For each of these subgroups, multiple indices of their relational development were assessed and findings revealed notable group differences. These results have implications about the potential costs and benefits of aggression, and how its associations with children's peer relationships may vary as a function of aggression subtype, developmental timing, and gender.
authors.affiliation: Sanford School of Social and Family Dynamics.
authors.forename: Idean
authors.initials: I
authors.lastname: Ettekal
authors.affiliation: Sanford School of Social and Family Dynamics.
authors.forename: Gary W
authors.initials: GW
authors.lastname: Ladd
mesh_terms: D000293:Adolescent; D041923:Adolescent Development; D000367:Age Factors; D000374:Aggression / Q000523:psychology*; D002648:Child; D002652:Child Behavior; D002657:Child Development; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D010379:Peer Group; D012929:Psychological Distance; D012737:Sex Factors