title: ENVIRONMENTAL HANDICAPS AND INTELLECTUAL DEVELOPMENT. I.
mesh_terms: D002648:Child; D002657:Child Development; D003469:Culture; D004739:England; D006801:Humans; D007360:Intelligence; D007361:Intelligence Tests; D007858:Learning; D014900:West Indies
keywords: CHILD; CULTURE; ENGLAND; INTELLIGENCE; INTELLIGENCE TESTS; WEST INDIES