The learning of sharing behavior.
D001741:Black or African American; D002648:Child; D002652:Child Behavior; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D007858:Learning; D008297:Male; D012054:Reinforcement, Psychology; D012737:Sex Factors; D044465:White People