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'''IQ''' or '''intelligence quotient''' is a measure of a person's cognitive ability. IQ is measured with tests that contain cognitive tasks that are very general and do not require specialization/schooling to answer, thus overlap with common sense. It is assumed no training has taken place for the IQ test, but modern IQ tests are also fairly sturdy i.e. resist the training effects by only teststing untrainable faculties such as processing speed, bandwidth and logic. | '''IQ''' or '''intelligence quotient''' is a measure of a person's cognitive ability. IQ is measured with tests that contain cognitive tasks that are very general and do not require specialization/schooling to answer, thus overlap with common sense. It is assumed no training has taken place for the IQ test, but modern IQ tests are also fairly sturdy i.e. resist the training effects by only teststing untrainable faculties such as processing speed, bandwidth and logic. | ||
Performance on different IQ tests correlates somewhat (r = ~0.5) which means IQ tests can assess someone's ''general intelligence'', i.e. someone's ability to act intelligently in cognitive tasks which haven't been tested. IQ has also been found to correlate with certain physiological measures, such as reaction time<ref>https://www.sciencedirect.com/science/article/abs/pii/S0160289601000629</ref>, brain volume,<ref>https://www.sciencedirect.com/science/article/abs/pii/S0160289616303385</ref> and color discrimation.<ref>https://www.sciencedirect.com/science/article/abs/pii/S0160289601000666</ref> This has lead to the conclusion that the more intelligent generally have more efficient and functional brains on a physiological level. | Performance on different IQ tests correlates somewhat (r = ~0.5) which means IQ tests can assess someone's ''general intelligence'' (''g''), i.e. someone's ability to act intelligently in cognitive tasks which haven't been tested. IQ has also been found to correlate with certain physiological measures, such as reaction time<ref>https://www.sciencedirect.com/science/article/abs/pii/S0160289601000629</ref>, brain volume,<ref>https://www.sciencedirect.com/science/article/abs/pii/S0160289616303385</ref> and color discrimation.<ref>https://www.sciencedirect.com/science/article/abs/pii/S0160289601000666</ref> This has lead to the conclusion that the more intelligent generally have more efficient and functional brains on a physiological level. | ||
Abilities that are relevant for all cognitive tasks are for example to quickly learn, retrieve and process a maximal amount of information and to quickly consider different hypotheses without losing track of things. These abilities enable one to better find a solution to any given problem and a path to any given goal. | Abilities that are relevant for all cognitive tasks are for example to quickly learn, retrieve and process a maximal amount of information and to quickly consider different hypotheses without losing track of things. These abilities enable one to better find a solution to any given problem and a path to any given goal. | ||