We now have in hand a series of tests for infants that can predict their IQs as adults. In one test, preverbal infants are allowed to feel an object hidden from their view in a box. If the infants can then correctly identify the object by sight—called cross-modal transfer—they will score higher on later IQ tests than infants who can’t. In another test, measuring something researchers call visual recognition memory, infants are set in front of a checkerboard square. This is an oversimplification, but the longer the infants stare, the higher their IQ is likely to be. Sound unlikely? These
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