The Blog

2021-

2021-03-14 f
FACTS THE LEFT HATES VI
(This is why the military is disproportionately black.)

Tory Data Scientist Andrew Sabisky KNOWS TOO MUCH About Race And IQ

... Sabisky helpfully explained what has been Settled Science since Arthur Jensen’s 1969 Harvard Education Review article:

If the mean black American IQ is (best estimate based on a century’s worth of data) around 85, as compared to a mean white American IQ of 100, then if IQ is normally distributed (which it is), you will see a far greater percentage of blacks than whites in the range of IQs 75 or below, at which point we are close to the typical boundary for mild mental retardation. Typically criminals with IQs below 70 cannot be executed in the USA, I believe.

That parsimoniously explains the greater diagnostic rates for blacks when it comes to “Intellectual disability”. It simply a consequence of the normal distribution of cognitive ability, because there are significant differences in the group means.

... In the mid-1960s, Jensen, a top professor of educational psychology at Berkeley, was asked to look into a mystery besetting a local school: Most of the white children who were declared to be suffering from intellectual disability because they had IQs below 70 were visibly suffering from Down Syndrome or some other Funny Looking Kid problem and were seen as retarded by their classmates on the playground. On the other hand, a much larger fraction of the black students scoring below 70 were normal-looking and socialized fine on the playground. What was wrong with the IQ test?

After intensive research, Jensen finally came to the conclusion that the IQ tests were fine: They predicted the future equally accurately for both whites and blacks. The cause was that whites and blacks had a difference in average of IQ of about one standard deviation (15 points), so 70 was two standard deviations below the white mean (2nd percentile) but only one standard deviation below the black mean (16th percentile).

As Linda Gottfredson explained in a 2002 article I wrote about the Supreme Court’s decision banning the death penalty for murderers with IQs below about 70:

The researchers said that the majority of low IQ individuals do not suffer from medical problems such as Down’s Syndrome. Gottfredson noted, “About 75 percent-80 percent of mental retardation is called ‘familial,’ because it mostly just represents the unlucky combinations of genes that are passed in the normal manner from parents to children. Only a small proportion of mental retardation is due to organic problems, such as chromosomal abnormalities or brain damage. This is just like height. Most very short people are perfectly normal.”

The stereotype that most low IQ children are what obstetricians often callously refer to in their notes as FLKs – “Funny Looking Kids” is not true. Elite members of American society tend not to realize this because when an extremely high-IQ person, such as a Supreme Court justice, has a retarded child, it’s generally due to organic causes.

Interestingly, the Berkeley schools were discovered, a half century later, to have the largest white-black gap of any public school district in the country. (read more)

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