Reduction of children's locomotor activity by modeling and the promise of contingent reward.
D000328:Adult; D000367:Age Factors; D001288:Attention; D002652:Child Behavior; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007100:Imitative Behavior; D008124:Locomotion; D008297:Male; D009042:Motivation; D009043:Motor Activity; D010988:Play and Playthings; D012057:Reinforcement, Verbal; D012201:Reward