Draft eligible players invited to this week’s NFL combine will have to add one more test to their already lengthy to-do list.

The NFL is introducing another aptitude test this year to supplement the Wonderlic, according to NFL.com. The report didn’t mention what the new test will focus on, but it was developed by a university professor and is expected to be more evolved than the Wonderlic.

There has never been proof that Wonderlic scores correlate with NFL performance. The test has been criticized in the past for being outdated.