Arthur Hu's "IQ Spectrum"

"What IS open to question is whether the tests measure innate, unchangeable abilities. As this chart shows, there are groups with average or better performance out there. However almost every conventional race based intervention in education does not result in equal performance. Only programs based on rigorous academics such as Barclay, and not race such as; conventional desegregation, busing students to expensive surburbs or affirmative action in hiring and multiculturalism in curriculum have been shown to result in superior performance." Arthur Hu

Arthur's "IQ Spectrum" has been enhanced with data from the SAT and NAEP, by state, sex, and race to demonstrate the relationship between IQs and standardized test scores.  This enables cross-state comparisons to be made

Notes:

(1) In many cases, conversions were made from SAT scores to an estimate of the US population based on percentile to IQ conversion.

(2) Koreans adopted by Americans, Winick, Meyer and Harris 1975

(3)American men = Asian women at visiospatial tasks (math) (Lynn / Seligman)

(4) Blacks in New York and Boston are equal to grade level in some grades, equal to 100 IQ by definition. Some schools that are mostly black in Chicago also perform at the 50th percentile.

(5) Study of children of mixed parents of European and Black soldiers found no difference

(6) A.Hu Converted 1995 CLAS distribution to IQ with white=100

(7) National Assessment of Educational Progress given to national cross-section of students, 1990

(8) "A better idea" The Economist Dec 2, 1995 p. 23 Barclay public school in Baltimore Md. emulates a tough private school to achieve 85 percentile math scores with 90% black students, 82% free lunch who previously were scoring 20-30 percentile. Superintendent was fired who had opposed "rich black man's curriculum" inappropriate for poor students.

(9) Flynn looked at studies that put Asian IQ higher and concluded that after you accounted for increases in IQ since the tests were "normalized", Asian IQs were actually no higher than whites might expected to be at the same time. However, he does not dispute that Asians still have superior academic performance in school, which is just as useful as having a high IQ.

This is my latest version -- Arthur Hu's "IQ Spectrum" -- http://www.halcyon.com/arthurhu/ 12422 107th Pl NE Kirkland WA 98034

Note that blacks are, as a group, generally below whites, but it is not difficult to find groups who score 100 average or far above under ideal conditions. Those who say that tests are invalid are implying that performance is equal when every test devised by man shows differences in skills such as vocabulary, abstract reasoning, and mathematics.

Date: Fri, 2 Feb 1996

Here's something else you might find helpful - note Asian females have a gender gap, but its nearly erased by the racial gap for Asians.

1993 SAT Scores Ranked by Race and Gender (unpublished special tabulations, College Board)

559 Asian male

518 White male

512 Asian female (only 6 points below WM)

472 White female

451 Hispanic male

408 Hispanic female

400 Black male

arthurhu@halcyon.com

The following data is published by the College Entrance Examination Board, and/or the Educational Testing Service.

The Gender Gap... Is the SAT fair to women?

Studies have shown that women slightly outperform men in their first year of college. So why does the SAT, a supposedly "fair" test, yield 45-point lower scores to women?

                1994 SAT Test Scores for:
                       Women       Men
Average for ALL races   881        926

The Ethnic Gap... Is the SAT fair to minorities?

Now let's take a look at similar data for ethnic groups. The differences are even larger!

                1994 SAT Test Scores for:
Asian American            951
Caucasian                 938
Mexican American          799
Black                     740
Average for ALL races     902

The Income Gap... Is the SAT fair to middle class and poor students?

Perhaps the most interesting data is the correlation between test scores and family income. On the average, well-off students score 234 points higher than students whose familes earn under $10,000 per year.

                1994 SAT Test Scores for:

under $10,000/yr           766
$10,000 - $20,000/yr       812
$20,000 - $30,000/yr       856
   ...
$50,000 - $60,000/yr       929
$60,000 - $70,000/yr       948
over $70,000/yr           1000

Our opinion...

Your SAT score is a better prediction of your income, race, or gender than it is of your ability to perform in college. So why does it not predict your grades in college accurately, and why do college grades not predict income, when SAT scores do?