flawed conclusion—that racial differences on achievement tests are most likely the result of genetic differences between the races—The Bell Curve carried within it a very important new observation, which was that academic grades and achievement-test results are very good predictors of all kinds of outcomes in life: not just how far you’ll go in school and how much you’ll earn when you get out, but also whether you’ll commit crimes, whether you’ll take drugs, whether you’ll get married, and whether you’ll get divorced. What The Bell Curve showed was that kids who do well in school tend to do
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