I have some NWEA MAP test charts that show that the 99th%ile for 11th graders end-of-year Reading RIT scores is 252, and that the 99th%ile for 11th graders for end-of-year Math RIT scores is 277, so each of those tests at least goes up that high. But, I don't know how much higher up they go than that. HTH! Sorry I don't know about other tests to help you track.

She thought she could, so she did.