Along with the handwaving around what broadening a pool of applicants does to the mean, (and surely around here we would understand that -- consider more homepage viewers lowering conversion rates), there is no mention of the change in scoring systems for SAT II; maybe these are accounted for (well not the first), there's just no way to know.

It's unfortunate, because some really great data about how well students in the US are doing, adjusted for measures that would allow longitudinal comparison would be, you know, useful.

As it is, all we learned is that this guy hates teacher's unions, and liked "waiting for superman", but I could have guessed that from his Bio.