How does this compare to their SAT scores? If all American late teens (not just the college bound elite) took the SAT in the 1970s, the average combined score would have been about 770 (see The Bell Curve, pg 422), suggesting 770 equated to IQ 100 (U.S. norms). Meanwhile, Mensa requires SAT scores obtained before 1974 to be at least 1300, suggesting 1300 = IQ 130 (U.S. norms). From these two data points, we might guess that 1357 before 1974 equaled IQ 133 (U.S. norms); 132 (U.S. white norms).