Language and intelligence: a longitudinal study of the first eight years. II. Environmental correlates of mental growth.
D000223:Adaptation, Psychological; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007360:Intelligence; D007361:Intelligence Tests; D007804:Language Development; D008131:London; D008297:Male; D008423:Maternal Age; D013060:Speech / Q000032:analysis; D014706:Verbal Learning