[keenmaster]

Thanks for pointing that out, they’re actually tied for second-to-last.

As for % tested, states that don’t mandate the ACT tend to have higher performance in general. They don’t have as compelling of a need for the mandate, and they have many students who’d rather just take the SAT on its own. There is an effect going the other way though - if you don’t mandate the ACT, then students who don’t want to take any standardised testing at all…won’t, and so they won’t depress the average score.