Modification of young children's grouping strategies: the effects of modeling, verbalization, incentives, and age.
D000367:Age Factors; D001288:Attention; D002675:Child, Preschool; D003210:Concept Formation; D004193:Discrimination Learning; D005260:Female; D006801:Humans; D007100:Imitative Behavior; D008297:Male; D009042:Motivation; D010364:Pattern Recognition, Visual; D011340:Problem Solving; D012858:Size Perception; D014705:Verbal Behavior