/sci/ - Science & Math

>>7588565
Yes, that's why there are tests developed not to have cultural bias. Wonderlic tests have pretty equal scores for blacks and whites. Cattell, Raven's and other pattern based tests are symbol based, and therefore accessible to anyone who has eyes and visual cognition. It is verbal tests that tend to be the most culturally biased.

>>7588537
Illiteracy is irrelevant to matrix tests, but yes, iodine deficiency can depress a region's IQ by 10-15 points.

>>7588741
There are obviously those with lopsided IQ's, but they are the exception. Mathematicians tend to have at least average verbal abilities, and writers tend to have at least average mathematical abilities. This can be seen on the SAT, where physicists score 500+ on the verbal and 700+ on the math, and linguists score 500+ on the math and 650+ on the verbal.

Math is the most g-loaded cognitive task on the planet, so there is almost no way that a mathematician has a low IQ (below the high range of 120-130). Similarly there are almost no physicists and mathematicians with an SAT math score under 600.

https://en.wikipedia.org/wiki/G_factor_(psychometrics) This link has many of the correlation coefficients

People like to believe that gifts are balanced by deficits, as it would be in their "just world," but that's not the case. Most smart people are globally intelligent, and have IQ subcategories within one standard deviation of each other. That not being the case actually indicates mental abnormalities. If a verbal IQ is significantly higher than a performance IQ (such as 135 to 95), the test taker has a predisposition to schizophrenia. If a performance IQ is significantly higher, than the test taker has a higher likelihood than normal of being autistic. In fact, global intelligence is one of the most experimentally replicated results in psychometrics, and g can be considered the summary of all of these correlation coefficients of these multifarious tasks. A balanced IQ profile indicates a healthy brain.