our ability to accurately predict student academic success at MIT 02 Our research shows this predictive validity holds even when you control for socioeconomic factors that correlate with testing. It also shows that good grades in high school do not themselves necessarily translate to academic success at MIT if you cannot account for testing. Of course, we can never be fully certain how any given applicant will do: we…
It's far easier for rich students to game GPA, college essays and extracurriculars than it is for them to game the SAT. For GPA, they can hire a private tutor in the subject they're struggling with. There are services out there that will basically write your english essay for you / do your math/science homework. For college essays, they can hire college counselors to help them draft a compelling essay. For extra curr…
It's gonna help you when the test writer was playing some gotcha tricks with phrasing or whatever, but if you don't understand the material, even narrowing it down to a 50/50 isn't going to get you a good score, and if you truly don't understand the material you probably won't be able to eliminate half the answers anyway. And they are absolutely aware of the "answer b/c if you don't know" nugget, that's nothing special either.
Also "adaptive difficulty" systems where the system throws harder questions at you after successfully answering the easier ones are basically the "elo rating" of academics. Everyone hates elo but... it slots you into a very statistically accurate ranking. If you score highly on Level 600 questions but you are failing on the Level 700 questions, odds are good you are somewhere between 600 and 700. My understanding is that's what SAT/ACT were moving towards about 10 years ago, that it would be computerized and "everyone's test is personalized" by the elo system probing your exact knowledge level from a bank of questions with difficulty scores dynamically based on how "similar ranked" students performed on that question.