title: Learning strategies in children from different socioeconomic levels.
mesh_terms: D000704:Analysis of Variance; D002648:Child; D002652:Child Behavior; D002675:Child, Preschool; D003210:Concept Formation; D003216:Conditioning, Operant; D004193:Discrimination Learning; D005108:Extinction, Psychological; D005260:Female; D006801:Humans; D007858:Learning; D008297:Male; D010056:Overlearning; D011337:Probability Learning; D011340:Problem Solving; D012055:Reinforcement Schedule; D012054:Reinforcement, Psychology; D012201:Reward; D012858:Size Perception; D012923:Social Class; D014796:Visual Perception