And @2018eastorwest, just to clarify, although I have said this all before:
I do know and believe that adults are extensively involved in SAT cheating.
What I keep disputing is the role of adult test takers. Is it likely that at least one adult test taker has cheated or enabled cheating at at least one point in the past? Yes, of course it is. But is there any evidence that adult test takers are responsible for any non-trivial share of all SAT cheating? No, there really isn’t. Not one of the major cheating scandals has involved–and none of the known methods of cheating require–an adult test-taker in a test center.
This “test security” explanation for the cancellation is bunk, and the College Board’s own actions (simply reassigning the exact same adults to different dates) pretty much proves it.