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IQ: Difference between revisions
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General intelligence becomes more predictive of task performance the more complex the task is.<ref>https://journals.sagepub.com/doi/10.1177/0013164498058002011</ref><ref>https://www.researchgate.net/profile/Chockalingam_vish_Viswesvaran/publication/319381272_A_Failed_Challenge_to_Validity_Generalization_Addressing_a_Fundamental_Misunderstanding_of_the_Nature_of_VG/links/5a3006d4458515a13d852c84/A-Failed-Challenge-to-Validity-Generalization-Addressing-a-Fundamental-Misunderstanding-of-the-Nature-of-VG.pdf</ref> | General intelligence becomes more predictive of task performance the more complex the task is.<ref>https://journals.sagepub.com/doi/10.1177/0013164498058002011</ref><ref>https://www.researchgate.net/profile/Chockalingam_vish_Viswesvaran/publication/319381272_A_Failed_Challenge_to_Validity_Generalization_Addressing_a_Fundamental_Misunderstanding_of_the_Nature_of_VG/links/5a3006d4458515a13d852c84/A-Failed-Challenge-to-Validity-Generalization-Addressing-a-Fundamental-Misunderstanding-of-the-Nature-of-VG.pdf</ref> | ||
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 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> | 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 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> | ||
Even social skills are g-loaded, but only things like knowledge about social events, not so much the gossipy socializing aspect.<ref>https://psychology.stackexchange.com/questions/9746/does-high-iq-correlate-with-good-social-skills</ref> | Even social skills are ''g''-loaded, but only things like knowledge about social events, not so much the gossipy socializing aspect.<ref>https://psychology.stackexchange.com/questions/9746/does-high-iq-correlate-with-good-social-skills</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> pupil size,<ref>https://www.ncbi.nlm.nih.gov/pubmed/27821254</ref>, cortical surface area,<ref>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6468099</ref> and color discrimation<ref>https://www.sciencedirect.com/science/article/abs/pii/S0160289601000666</ref> have been found to correlate with g. Further, much of g has been linked to certain genes,<ref>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6411041/</ref> and g is highly heritable (up to 86% in adults, but lower in children).<ref>https://www.sciencedirect.com/science/article/abs/pii/S0160289614000099</ref><ref>https://en.wikipedia.org/wiki/Heritability_of_IQ</ref> This suggests that general intelligence is explained by more efficient and functional brains at 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> pupil size,<ref>https://www.ncbi.nlm.nih.gov/pubmed/27821254</ref>, cortical surface area,<ref>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6468099</ref> and color discrimation<ref>https://www.sciencedirect.com/science/article/abs/pii/S0160289601000666</ref> have been found to correlate with g. Further, much of ''g'' has been linked to certain genes,<ref>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6411041/</ref> and ''g'' is highly heritable (up to 86% in adults, but lower in children).<ref>https://www.sciencedirect.com/science/article/abs/pii/S0160289614000099</ref><ref>https://en.wikipedia.org/wiki/Heritability_of_IQ</ref> This suggests that general intelligence is explained by more efficient and functional brains at 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. | ||
Colloquially, "IQ" is used synonymously with general intelligence. | Colloquially, "IQ" is used synonymously with general intelligence. | ||