With spring fast approaching, many American high school seniors are now waiting anxiously to hear whether they got into the college or university of their choice. For many students, their scores on the SAT or the ACT will play a big role in where they get in.

That's because those standardized tests remain a central part in determining which students get accepted at many schools. But a first-of-its-kind study obtained by NPR raises questions about whether those tests are becoming obsolete.