Re:MIT to no longer consider SAT subject tests in admissions...
by adchari on Saturday March 21, 2020 @12:52PM
(#22647843)
Cost for tests can be waived using exam vouchers, even for the subject tests. I think the actual factor would be preparation time/cost of other resources, which can be either really small or thousands of dollars for a test prep course.
While they weren't explicit about why SAT subject tests won't be accepted, this may be a clue:
> No: in fairness to all applicants, we won’t consider them for anyone. We think it would be unfair to consider scores only from those who have scored well and therefore choose to send them to us.
Seems reasonable to expect tests which are optional to suffer from heavy selection bias as they described. I'd expect optional tests to also skew towards the rich because there is a cost to each test.