Actually, to be more precise, the difference in Pisa scores in Germany is not exclusively turkish, it's between people with "Migrations-background" and people w

Actually, to be more precise, the difference in Pisa scores in Germany is not exclusively turkish, it's between people with "Migrations-background" and people without. I.e, ethnic Germans vs non-Ethnic Germans. According to this article, the difference is 56 points now (http://www.spiegel.de/schulspiegel/wissen/0,1518,733188,00.html http://www.spiegel.de/schulspiegel/wissen/0,1518,733188,00.h...). It was 90+ points previously. Non-ethnic germans make up 20% of the population, far greater than the 2.1%. See here: http://de.wikipedia.org/wiki/Deutschland#Demografie http://de.wikipedia.org/wiki/Deutschland#Demografie Same goes with France, I just used 'arabs' for demonstration, but the actual non-ethnic French percentage is higher than the ethnic blacks in the U.S.