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More recent research attempting to identify genetic loci associated with individual-level differences in IQ has yielded promising results, which led the editorial board of Nature to issue a statement differentiating this research from the "racist" pseudoscience which it acknowledged has dogged intelligence research since its inception. [151]
World map based on File:BlankMap-World-Sovereign_Nations.svg for copyright reasons: 20:26, 28 December 2019: 2,000 × 1,200 (135 KB) Olivello: Fixed data: extracted directly from the book IQ and the Wealth of Nations (2006), from table 6.5: 21:00, 18 November 2019: 2,000 × 1,200 (135 KB) Olivello: User created page with UploadWizard
Like all current IQ tests, the Wechsler tests report a "deviation IQ" as the standard score for the full-scale IQ, with the norming sample mean raw score defined as IQ 100 and a score one standard deviation higher defined as IQ 115 (and one deviation lower defined as IQ 85). During the First World War in 1917, adult intelligence testing gained ...
David Marks (2010) argues that differences in average IQ scores between national groups and across time periods can be fully accounted for by differences in literacy levels, and that "IQ distributions will converge if opportunities are equalized for different population groups to achieve the same high level of literacy skills." [23]
The debate concerns possible explanations of group differences encountered in the study of race and intelligence. Since the beginning of IQ testing around the time of World War I there have been observed differences between average scores of different population groups, though these differences have fluctuated and in many cases steadily ...
Stressing the similarity of average IQ scores across racial groups in the Eyferth study, James Flynn, Richard E. Nisbett, Nathan Brody, and others have interpreted it as supporting the notion that IQ differences between whites and blacks observed in many other studies are mostly or wholly cultural or environmental in origin. [10]
Younghoon Kim, 35, from Korea, has the world’s highest recorded IQ, a staggering 276. To put this into context, the average IQ is around 100 with the threshold for genius standing at 140.
A section in IQ and human intelligence (1998) by Nicholas Mackintosh discussed ethnic groups and Race and intelligence: separating science from myth (2002) edited by Jefferson Fish presented further commentary on The Bell Curve by anthropologists, psychologists, sociologists, historians, biologists and statisticians. [154]