Yeah, you could interpret it the other way if you wanted to be contrarian. E.g. A rich family is a family with good genes. But that seems like it would be too

Yeah, you could interpret it the other way if you wanted to be contrarian. E.g. A rich family is a family with good genes. But that seems like it would be too categorical for a 15% difference (maybe, what's the min SAT score?). What makes it striking though is that the average(I assume?) test score isn't higher than 580 at the >$200k level. Granted, I haven't done the SAT's in 20 years, but that's certainly not genius territory there. It leads me to think that the carefully cynical hypothesis is the more correct one. :-) 15% of your SAT score probably measures your _proximity_ to wealth.