PR SAT II Physics = accurate?

<p>Does anybody know how accurate the practice tests in the Princeton Review SAT II Physics book are? I took the test from the 22 Reals book and missed only 2, but just now I took it out of the PR book and missed 10, giving me a score of 62.5 which it still said was an 80.... I'm a little confused...Is this accurate?</p>

<p>Well, as many posters have said before, no prep book is going to perfectly imitate the real thing. Then again, maybe some external factors influenced your performance.<br>
However, a 62.5 could still be an 800. Physics tends to have a generous curve, and 8% of test takers receive 800s.</p>