In the simplest case, if we have two groups of the same size, and the average of Group A exceeds the average of Group B by fifteen IQ points (one standard deviation), then among people with an IQ of 115 or higher the As will outnumber the Bs by a ratio of three to one, but among people with an IQ of 160 or higher the As will outnumber the Bs by a ratio of forty-two to one.
But statisticians have long known that a moderate difference in the means of two distributions translates into a large difference at the tails. Their average IQ has been measured at 108 to 115, one-half to one standard deviation above the mean. On the world stage, we find that 54 percent of the world chess champions have had one or two Jewish parents.ĭoes this mean that Jews are a nation of meinsteins? It does not. National Medal of Science, 25 percent of the American Nobel Prize winners in literature, 40 percent of the American Nobel Prize winners in science and economics, and so on. Though never exceeding 3 percent of the American population, Jews account for 37 percent of the winners of the U.S. Jews are remarkably over-represented in benchmarks of brainpower. The appearance of an advantage in average intelligence among Ashkenazi Jews is easier to establish than its causes. " Many Jews subscribe to a folk theory that attributes Jewish intelligence to what would have to be the weirdest example of sexual selection in the living world: that for generations in the shtetl, the brightest yeshiva boy was betrothed to the daughter of the richest man, thereby favoring the genes, if such genes there are, for Talmudic pilpul. A droll e-mail called "New Words to Add to Your Jewish Vocabulary" includes "jewbiliation, N: pride in finding out that one's favorite celebrity is Jewish" and "meinstein, N: My son, the genius. There is an ethnic pride at the prevalence of Jews in occupations that reward brainpower. Jews have long had an ambivalent attitude toward their own intelligence, and toward their reputation for intelligence. He wasn't exactly serious, but he wasn't exactly not serious either.
He shrugged, tapped his forehead, and said, "Goyishe kop," a term of condescension that literally means "gentile head. I asked him why he was doing this himself rather than leaving it to his employees. He explained that by carving up the remnants that were left over when the neckties had been cut out and stitching them together in places that didn't show, he could get a few extra ties out of each sheet of cloth. While visiting them one weekend, I found my grandfather on the factory floor, cutting shapes out of irregular stacks of cloth with a fabric saw. My grandparents were immigrants from Eastern Europe who owned a small necktie factory on the outskirts of Montreal.
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