Discrimination of orientation by Zambian children.
D000367:Age Factors; D001288:Attention; D002648:Child; D002675:Child, Preschool; D003118:Color Perception; D003431:Cross-Cultural Comparison; D004192:Discrimination, Psychological; D004522:Educational Status; D005260:Female; D005556:Form Perception; D006801:Humans; D008297:Male; D009949:Orientation; D010465:Perception; D011340:Problem Solving; D011581:Psychological Tests; D012424:Rural Population; D014505:Urban Population; D015024:Zambia