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Several authors, including Leon Kamin in The Science and Politics of IQ, [24] Angela Saini in Superior: The Return of Race Science, [25] and John P. Jackson, Jr. and Nadine M. Weidman in Race, Racism, and Science, [26] have argued that since the early years of IQ testing comparisons between nations have been used to justify discrimination ...
The first tests showing differences in IQ scores between different population groups in the United States were the tests of United States Army recruits in World War I. In the 1920s, groups of eugenics lobbyists argued that these results demonstrated that African Americans and certain immigrant groups were of inferior intellect to Anglo-Saxon ...
The IQ figures are based on 3 different studies for 17 nations, two studies for 30 nations, and one study for 34 nations. There were actual tests for IQ in the case of 81 countries out of the 185 countries studied. For 104 nations there were no IQ studies at all and IQ was estimated based on the average IQ of surrounding nations. [2]
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]
An intelligence quotient (IQ) is a total score derived from a set of standardized tests or subtests designed to assess human intelligence. [1] Originally, IQ was a score obtained by dividing a person's mental age score, obtained by administering an intelligence test, by the person's chronological age, both expressed in terms of years and months.
There were about 98 mixed race (black-white), and about 83 white children in the sample. [5] The total sample consisted of about 5 percent of the German children known to have been fathered by black soldiers between 1945 and 1953, in addition to a matched sample of 83 German children whose fathers were white soldiers.
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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 ...