Originally Posted by aeh
Plus, in mathematics, pretty much the whole continent of North America is about 1-2 years behind the rest of the industrialized world, which I don't think is due to the population being a standard deviation lower than the rest of the world in intelligence (though there are moments when that seems rather plausible!).
I have never seen evidence showing that adjusting for race, children in the U.S. are much behind those in other industrialized countries. See for example
Graph of 2012 PISA scores for 65 countries/economies