lmkg is correct. The SAT is not a test that tests your knowledge; it's a test that tests how many test prep classes you've taken. It's shaped by money and politics, and not by how to better assess students' knowledge.
I offer my sole data point with no value-laden broad-application.
I never took a single prep-class, nor read a prep-book, and went to typical public schools for my education.
I scored a 730 on the SAT reading section.
