From the College Board: on average, students score 60 points higher on SAT vs. PSAT. Students who did 20 hours of test prep (using Khan Academy) gained 115 points -- an additional 55 points. Read the article: Free Khan Academy SAT tutorials boost scores This is interesting on several levels: For years the College Board claimed there was no advantage to test prep, students could not "beat the test". Now they're acknowledging what most of us believed (and a multi-billion dollar