Over a recent 14-year stretch, the children of African farmers working in a mountainous region of Kenya appear to have cultivated a record crop of IQ points. These youngsters, ages 6 to 8, scored about 11 points higher in 1998 than their peers did in 1984, a new study finds.
This is the fastest increase in a population’s average IQ ever reported, say psychologist Tamara C. Daley of the University of California, Los Angeles and her colleagues.
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