OpinionJournal – Extra
In professions screened for IQ by educational requirements–medicine, engineering, law, the sciences and academia–the great majority of people must, by the nature of the selection process, have IQs over 120, or about 15 million people in today’s labor force-. Evidence about who enters occupations where the screening is not directly linked to IQ indicates that people with IQs of 120 or higher also occupy large proportions of positions in the upper reaches of corporate America and the senior ranks of government. People in the top 10% of intelligence produce most of the books and newspaper articles we read and the television programs and movies we watch. They are the people in the laboratories and at workstations who invent our new pharmaceuticals, computer chips, software and every other form of advanced technology.
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