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DNA tests for IQ are coming, but it might not be smart to take one

Scientists have linked hundreds of genes to intelligence. One psychologist says it’s time to test school kids.
by Antonio Regalado

Ready for a world in which a $50 DNA test can predict your odds of earning a PhD or forecast which toddler gets into a selective preschool?

Robert Plomin, a behavioral geneticist, says that’s exactly what’s coming.

For decades genetic researchers have sought the hereditary factors behind intelligence, with little luck. But now gene studies have finally gotten big enough—and…


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