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...prediction largely on the basis of the high heritability of I.Q. He cites intelligence tests which measured the I.Q.'s of identical twins who were brought up in different homes. The data he cites is drawn from a study in the Harvard Educational Review, by Berkeley geneticist Arthur Jensen who compiled statistics and conclusions from four different studies done...

Author: By David R. Caploe, | Title: Herrnstein in 'The Atlantic' Predicts American Meritocracy | 9/24/1971 | See Source »

Comparing the variation of I.Q.'s in this sample of 122 sets of identical twins, Herrnstein (through Jensen) finds that "more than four times out of five the difference between identical twins raised apart fell short of the average difference between fraternal twins raised together by their own parents...

Author: By David R. Caploe, | Title: Herrnstein in 'The Atlantic' Predicts American Meritocracy | 9/24/1971 | See Source »

Based on these and other data Herrnstein says that Jensen and most other experts in the field agree that inheritance counts for about 80 per cent of an individual's I.Q., and all other factors around 20 per cent. including education, nutrition...

Author: By David R. Caploe, | Title: Herrnstein in 'The Atlantic' Predicts American Meritocracy | 9/24/1971 | See Source »

Herrnstein noted that his use of the statistics was different from Jensen's. Whereas Jensen was trying to determine the nature of the differences in biracial I.Q., Hernnstein was interested in the role I.Q. played in social standing...

Author: By David R. Caploe, | Title: Herrnstein in 'The Atlantic' Predicts American Meritocracy | 9/22/1971 | See Source »

Psychology professor E.B. Newman, current chairman of the Psychology Department, said that he knew Herrnstein had been quite concerned with the problem for a long time, Newman said he thought the final impetus was what Herrnstein felt was an over reaction to Jensen's article...

Author: By David R. Caploe, | Title: Herrnstein in 'The Atlantic' Predicts American Meritocracy | 9/22/1971 | See Source »

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