In other words, the gap in test scores appears to be completely cultural and nurture over nature.
For the paper, visit here.
What strikes me about much of the racist pap I encounter is that it is very, very similar to the way women were portrayed a hundred years ago. People laughed at Brigham Young when he said women were as fit to be lawyers, accountants, politicians and doctors as men. He was derided for emphasizing the need to educate women. Yet now:
A recent Ofcom report found that women aged 25-35 now spend more time using the internet than men.
If you look at medical schools, they are dominated by women, many law schools are more than 50% female and in the bloggernacle the most famous PhD candidate in philosophy is female.
All of that stems from cultural changes and cultural inputs.Of which, one of the most important cultural input may be religion: "youth with religiously active parents are less affected later in life by childhood disadvantage than youth whose parents did not frequently attend religious services."