为什么芝大SAT/ACT optional？ 刚刚看到的解释。

Are test-optional colleges adopting a kindler-gentler approach to admissions? No, they’re chasing rankings. Think about it. When a school declares SAT scores optional, which students report their scores? Only students with high test scores. This boosts the avg. SAT scores at the college and the school moves up a rung on the rankings ladder.