title: Assertive behavior in children: a step toward a theory of aggression.
mesh_terms: D000374:Aggression; D001362:Avoidance Learning; D002652:Child Behavior; D002675:Child, Preschool; D003216:Conditioning, Operant; D003469:Culture; D004777:Environment; D005260:Female; D006801:Humans; D007223:Infant; D007398:Interpersonal Relations; D008297:Male; D009042:Motivation; D009043:Motor Activity; D010287:Parent-Child Relations; D010379:Peer Group; D012054:Reinforcement, Psychology; D012578:Schools, Nursery; D012801:Sibling Relations; D012951:Socialization; D014705:Verbal Behavior