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Yet, although IQ differences between individuals have been shown to have a large hereditary component, it does not follow that between-group differences in average IQ have a genetic basis. [ 19 ] [ 20 ] [ 26 ] In fact, greater variation in IQ scores exists within each ethnic group than between them. [ 85 ]
The Mismeasure of Man is a 1981 book by paleontologist Stephen Jay Gould.The book is both a history and critique of the statistical methods and cultural motivations underlying biological determinism, the belief that "the social and economic differences between human groups—primarily races, classes, and sexes—arise from inherited, inborn distinctions and that society, in this sense, is an ...
[153] [154] [155] When used in the context of human behavior genetics, the term "heritability" can be misleading, as it does not necessarily convey information about the relative importance of genetic or environmental factors on the development of a given trait, nor does it convey the extent to which that trait is genetically determined. [156]
In 2018, in response to a resurgence of public controversy over race and intelligence, the geneticist and neuroscientist Kevin Mitchell made a statement in The Guardian that described the idea of genetic IQ differences between races as "inherently and deeply implausible" because it goes against basic principles of population genetics. There he ...
Intelligence and personality have some common features; for example, they both follow a relatively stable pattern throughout the whole of one’s life, and are to some degree genetically determined. [1] [2] In addition, they are both significant predictors of various outcomes, such as educational achievement, occupational performance, and health.
"How Much Can We Boost IQ and Achievement?" is a 1969 article by Arthur Jensen published in the Harvard Educational Review. [1] Controversy over the article led to the coining of the term Jensenism , [ 2 ] defined as the theory that IQ is largely determined by genes, including racial heritage. [ 3 ]
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An analysis published in 2019 found the contours of 677 children and adolescent (mean age 12.72 years) brains had a genetic correlation of almost 1 between IQ and surface area of the supramarginal gyrus on the left side of the brain.