Cognition, language, and social behavior.
D000293:Adolescent; D002648:Child; D003071:Cognition; D003431:Cross-Cultural Comparison; D003469:Culture; D005006:Ethnicity; D006801:Humans; D007802:Language; D007804:Language Development; D011932:Reading; D012424:Rural Population; D012919:Social Behavior; D012959:Socioeconomic Factors; D013060:Speech; D014505:Urban Population