title: Age and sex differences in the cooperative and noncooperative behavior of pairs of American children.
abstract: Game playing behavior of same and mixed sex pairs of 5-, 8-, and 11-year-old American children was compared, using a game in which cooperative behavior maximized reward. Pairs of 8- and 11-year-old children were relatively more cooperative and attained significantly more Joint Reward Goals than 5-year-old pairs. Older pairs were not maximally cooperative, however, in terms of all the dependent measures; in adjusting for initial differences on practice trials, 5-year-olds and 8-year-olds took less time than the 11-year-olds, and 11-year-old pairs of boys took significantly more time than all other pairs. In addition, cooperative behavior increased across trials, especially for the 11-year-old children.
mesh_terms: D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003163:Competitive Behavior; D003299:Cooperative Behavior; D005260:Female; D005783:Gender Identity; D006801:Humans; D007062:Identification, Psychological; D008297:Male; D010988:Play and Playthings