Knowledge is relatively limited. A big part of it is the mechanics of the test. There’s a pattern to the questions. AP tests are similar - a teacher who worked

Knowledge is relatively limited. A big part of it is the mechanics of the test. There’s a pattern to the questions. AP tests are similar - a teacher who worked as a grader gives his or her students a massive edge. The norm in school is a grade based on number correct. SAT is a composite score with different weights and treatment of answers. When I took it, an incorrect answer deducted points while a blank answer was neutral. When I was in school, the good students got 1280-1450, and the prep classes would yield 40-100 points in most cases. It’s an optimization exercise. If Johnny can’t read, Kaplan isn’t gonna save him.