Not having read the whole article, I will point out that IQ tests generally contain cultural bias and American IQ tests generally are normed against white middle class values/people. So anyone who is Latino, black, foreign (etc) has a good chance of "performing poorly" in comparison to the population it was normed against.
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Not having read the whole article, I will point out that IQ tests generally contain cultural bias and American IQ tests generally are normed against white middle class values/people. So anyone who is Latino, black, foreign (etc) has a good chance of "performing poorly" in comparison to the population it was normed against.