Enriching the preschool experience of children from age 3. II. The evaluation.
D002675:Child, Preschool; D003467:Cultural Deprivation; D004519:Education, Special; D005260:Female; D006801:Humans; D007360:Intelligence; D007361:Intelligence Tests; D008297:Male; D012578:Schools, Nursery; D012959:Socioeconomic Factors