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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.
Examples of words used included alley apple, black draught, blood, boogie jugie, and boot. [1] The original sample used in the experiment consisted of 100 white and 100 black St. Louis high school students, aged 16–18 years old – half of them being from low socioeconomic levels and the other half from middle income levels.
Moore (1986) compared black and mixed-race children adopted by either black or white middle-class families in the United States. Moore observed that 23 black and interracial children raised by white parents had a significantly higher mean score than 23 age-matched children raised by black parents (117 vs 104), and argued that differences in ...
A more egregious example is provided by his treatment of the Eyferth (1961) study of two groups of illegitimate children fathered by (mostly) American black and white servicemen and brought up by their (carefully matched) German mothers. Eyferth reported an average IQ of 96.5 for the mixed race children and of 97.2 for the whites.
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.
According to Jencks & Phillips (1998), in his article Jensen had argued "that educational programs for disadvantaged children initiated as the War on Poverty had failed, and the black-white race gap probably had a substantial genetic component." They summarised Jensen's argument as follows: [93] "Most of the variation in black-white scores is ...
IQ scores can differ to some degree for the same person on different IQ tests, so a person does not always belong to the same IQ score range each time the person is tested (IQ score table data and pupil pseudonyms adapted from description of KABC-II norming study cited in Kaufman 2009). [12] [13] Pupil KABC-II WISC-III WJ-III Asher: 90: 95: 111 ...
Cognitive test scores predict educational performance better than they predict any other outcome, and cognitive testing is pervasive in academics [citation needed].Central policy issues concern the proper role of testing in assessing educational quality and in college admission; efforts to characterize and close the educational achievement gap between racial and socioeconomic groups in the US ...