Problem solving and the perceptual salience of variability and constancy: a developmental study.
D000704:Analysis of Variance; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003118:Color Perception; D003210:Concept Formation; D004193:Discrimination Learning; D005260:Female; D005556:Form Perception; D006801:Humans; D008297:Male; D011340:Problem Solving; D014796:Visual Perception