Does this take into account immigration to England? If not, it's as worthless as studies saying American students aren't on a par with students abroad. The question is, which American students we're talking about: the black ones or the white ones? The distribution of IQ among white students is on a par with that of other white kids in other places. The distribution of IQ among black students is less favorable. (This…
I am inclined to agree with you that this study is just as worthless as the ones comparing American students to foreign ones, but for different reasons. It's just about what is being tested -- kids may do worse on some measures, but on average, in the age of Google, everyone is a great deal smarter than 30 years ago.