Early twin studies of adult individuals have found a heritability of IQ between 57% and 73%,[6] with the most recent studies showing heritability for IQ as high as 80%.[7]
Source
Early twin studies of adult individuals have found a heritability of IQ between 57% and 73%,[6] with the most recent studies showing heritability for IQ as high as 80%.[7]
Source