<p>Are the tests accurate?</p>
<p>The first 3 tests are actual, previously administered tests that will tell you how well you do with actual scores.</p>
<p>The next set of them (depending on the edition you have, ex. 2nd edition has 10 tests, so the next 7) will be questions taken from a bunch of different, old SATs and just questions made by the collegeboard for prep, with score ranges, so a score range might be 530-610 in math.</p>
<p>The ranges are a conundrum at times, but its best to take the middle score so if you score 530-610, the middle score is a 570.</p>
<p>What about the Kaplan PSAT prep book?</p>
<p>not sure, never used it.</p>