Cognitive development after age five: a future factor in the failure of early intervention with the urban child.
D000124:Achievement; D000367:Age Factors; D002648:Child; D002657:Child Development; D003071:Cognition; D003467:Cultural Deprivation; D004493:Education; D004777:Environment; D005106:Exploratory Behavior; D005190:Family; D006801:Humans; D007858:Learning; D011582:Psychological Theory; D012931:Social Environment; D013663:Teaching; D014505:Urban Population