That was quite interesting, but they left it a bit open to interpretation. Someone needs to compare children of all races from the same background/area, that way there could be no excuses. Seems like every piece of data for either side is being collected unfairly at the moment. In my opinion though, it seems unlikely that people of African origins would match european and east asian levels of intelligence otherwise they would have developed a lot quicker in their own societies. Like someone has already said, it seems as if they have made no real advancement in thousands of years