The guest talking about race differences in IQ test is stupid. Obviously whites do better on IQ tests because they are the richest race. They have less stress, stress lowers peoples IQ. Therefor people in poor countries will do worse on IQ tests.,(reply>), Being rich doesn't make you smarter. Being smart makes you richer. This is why even poor whites outscore rich blacks on the SAT. Also, whites don't have less stress if we are talking within the US.