I have the Official Sat Subject Test book from the College Board, and I used it to take both of the practice tests for World History and U.S History. I was able to receive a respectable score on all of the tests, but when I took tests from Kaplan and Princeton Review, my scores dropped by around 100 points. Should I trust the scores I got on the official guide even though it is around 10 years old or from prep companies?
If anyone has had an experience taking the World History or U.S History Subject test please post your real scores and the scores you received on the practice tests from the official guide.