Validating theories of intelligence.
D000223:Adaptation, Psychological; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D003071:Cognition; D004463:Ecology; D006801:Humans; D008607:Intellectual Disability / Q000523:psychology; D007360:Intelligence; D007361:Intelligence Tests; D007858:Learning; D011582:Psychological Theory; D011594:Psychometrics; D012107:Research Design; D013663:Teaching / Q000379:methods