Originally Posted by Quantum2003
( I think I am remembering the College Board Concordance correctly as the DYS chart just lists the previous1300/660/640 and a reminder to adjust the scores using the concordance tables)

College Board's concordance translates 1300 total to 1360. Math 660 translates to 690. 640CR only translates to 34 on the Reading subtest, but it's fair to infer a translation to 680. They do always note that component and total concordance do not necessarily match.

I also agree that the attempted application of TIP/CTY scores to the population isn't accurate. A score of 800, at 5 sigma, would yield 2-3 students per grade in the entire US. CTY alone had over 50 last year.

Last edited by Cranberry; 03/23/17 08:45 PM.