re: Ichiro still can't speak english

I wonder how those people who publish such studies as referred to having Jewish people #1 in IQ, found out who were Jewish. From grade school on, I never once had any test asking what my religion was. I remember IQ tests in grade school, beginning in the 3rd grade. None of them asked the race of the person or the religion. So these results referred to must have been done with the specific intent to isolate Jewish results and Asian results.
Look far and wide on the internet, and you can see state scores by race, including black, white, asian and "Hispanic", but no Jewish category.