On Sun, 6 Mar 2016 00:14:46 +0000 (UTC),
wol...@bimajority.org
(Garrett Wollman) wrote:
>In article <
80rmdb5ujanus0m0p...@4ax.com>,
>Mack A. Damia <
mybaco...@hotmail.com> wrote:
>
>>Also, if you are familiar with Herrnstein's and Murray's, "The Bell
>>Curve" that caused more than a ripple in academia in the 1990s, the
>>universal mean IQ of 100 is mediocre at best. That means 50% of the
>>population have IQs less than 100.
>
>Of course they do. If you read any of the criticism of Herrnstein and
>Murray's shoddy little book, you would recall that IQ scales have a
>median score of 100 *by construction*.
One of the most vocal critics of Hernstein's and Murray's *The Bell
Curvez* was the anthropologist, Stephen Jay Gould, who addressed his
attacks in "The Mismeasure of Man. The objections emanated from the
nature of the discipline. For one thing, Anthropology never did
accept an inherent or acquired difference in the races except skin
color, hair and appearance.
The authors had to establish that IQ tests measure the same thing in
blacks as in whites. There is a mean difference in black and white
scores on mental tests, historically about one standard deviation in
magnitude on IQ tests (IQ tests are normed so that the mean is 100
points and the standard deviation is 15). This difference is not the
result of test bias, but reflects differences in cognitive
functioning. The predictive validity of IQ scores for educational and
socioeconomic outcomes is about the same for blacks and whites.
The mean group difference for white and African American young people
as they complete high school and head to college or the labor force is
effectively unchanged since 1994. Whatever the implications were in
1994, they were about the same in 2014.
The flashpoint of the controversy about race and IQ was about genes.
If you mention “The Bell Curve” to someone, they’re still likely to
say “Wasn’t that the book that tried to prove blacks were genetically
inferior to whites?”
In the final analysis, the authors were unable to state the degrees to
which race versus environment contributed to the difference.
(Charles Murray) "The reaction to “The Bell Curve” exposed a profound
corruption of the social sciences that has prevailed since the 1960s.
“The Bell Curve” is a relentlessly moderate book — both in its use of
evidence and in its tone — and yet it was excoriated in remarkably
personal and vicious ways, sometimes by eminent academicians who knew
very well they were lying. Why? Because the social sciences have been
in the grip of a political orthodoxy that has had only the most
tenuous connection with empirical reality, and too many social
scientists think that threats to the orthodoxy should be suppressed by
any means necessary. Corruption is the only word for it."
https://www.aei.org/publication/bell-curve-20-years-later-qa-charles-murray/