title: Responses of lower- and middle-class 5-yr-old children to achromatic and chromatic color and form stimuli.
mesh_terms: D002657:Child Development; D002675:Child, Preschool; D003118:Color Perception; D004192:Discrimination, Psychological; D005006:Ethnicity; D005260:Female; D005556:Form Perception; D006801:Humans; D008297:Male; D012737:Sex Factors; D012923:Social Class