Trusted, Automoderated users
17,538
edits
IQ: Difference between revisions
Jump to navigation
Jump to search
no edit summary
No edit summary |
No edit summary |
||
| Line 2: | Line 2: | ||
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 ''any'' cognitive task, even those which haven't been tested. A task in which people's performance correlates with g is said to be ''g-loaded''. | 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 ''any'' cognitive task, even those which haven't been tested. A task in which people's performance correlates with g is said to be ''g-loaded''. | ||
Even real-life cognitive tasks like achievement in school and at work, even social skills (but only declarative knowledge about social events, not so much gossipy socializing<ref>https://psychology.stackexchange.com/questions/9746/does-high-iq-correlate-with-good-social-skills</ref>) are just as much correlated with general intelligence as IQ tests. Even though IQ is an imperfect measure, it allows to very reliably decide for example that a person with IQ less than 90 is very likely to fail in an academic math course and that 115 is a minimum for achieving a graduate degree with satisfying grades.<ref>http://emilkirkegaard.dk/en/wp-content/uploads/Bias-in-Mental-Testing-Arthur-R.-Jensen.pdf</ref> It has been suggested a battery of at least three tests is necessary to assess general intelligence accurately (short-term memory, reasoning and verbal skills).<ref>https://www.telegraph.co.uk/news/science/science-news/9755929/IQ-tests-do-not-reflect-intelligence.html</ref> | Even real-life cognitive tasks like achievement in school and at work, even social skills (but only declarative knowledge about social events, not so much gossipy socializing<ref>https://psychology.stackexchange.com/questions/9746/does-high-iq-correlate-with-good-social-skills</ref>) are just as much correlated with general intelligence as IQ tests. This means IQ tests can be used for screening. Even though IQ is an imperfect measure, it allows to very reliably decide for example that a person with IQ less than 90 is very likely to fail in an academic math course and that 115 is a minimum for achieving a graduate degree with satisfying grades.<ref>http://emilkirkegaard.dk/en/wp-content/uploads/Bias-in-Mental-Testing-Arthur-R.-Jensen.pdf</ref> It has been suggested a battery of at least three tests is necessary to assess general intelligence accurately (short-term memory, reasoning and verbal skills).<ref>https://www.telegraph.co.uk/news/science/science-news/9755929/IQ-tests-do-not-reflect-intelligence.html</ref> | ||
Various 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> have been found to be g-loaded. 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. | Various 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> have been found to be g-loaded. 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. | ||