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On measures of cognitive ability (IQ tests) and school performance, black children in the U.S. have performed worse than white children. At the time of the study, the gap in average performance between the two groups of children was approximately one standard deviation, which is equivalent to about 15 IQ points or 4 grade levels at high school graduation.
Some recent research has argued that the retardation caused in brain development by infectious diseases, many of which are more prevalent in non-white populations, may be an important factor in explaining the differences in IQ between different regions of the world. The findings of this research, showing the correlation between IQ, race and ...
This paper suggested that the average IQ score of Ashkenazi Jews fall in a range of 108–115 under some studies, which would be significantly higher than that of any other ethnic group in the world. [15] [17] [18] The paper received widespread coverage in media. [19] [20] [21] The paper attracted significant criticism and controversy.
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]
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.
Isla McNabb became Mensa's youngest female member last year at just 2 years old. Her parents recently explained why they got her tested for the group.
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 ...
Eyferth reported an average IQ of 96.5 for the mixed race children and of 97.2 for the whites. Lynn reduces the former number to 94 to compensate for use of an old test, and compares it, not with the score of the white sample, but with an average IQ of 100 for German children.