800 on cb official pratice tests, 710 on PR for physics

Test Preparation SAT Subject Test Preparation
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<p>Guys this is very strange. Last week I did a physics practice test from princeton review, and got a 710. Today I did one from collegeboard's official sat subject tests study guide, and got an 800. People say the PR is harder than the real thing, but for me the reverse seemed to have happened. I did no studying in between week between the tests. Am freaking out, should I study like mad because the official practice test was easier by mistake, or spend my time on my other subject tests? My test is next week.</p>

<p>BTW, the princeton review tests say that a 63 raw score is an 800, For the cb official guide, its 59. I got 40something in the PR test and 66 on the cb one. What are your experiences with collegeboard's practice tests?</p>

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<p>The “official” practice test is an old, administered SAT II Physics exam. That’s probably as hard as it’s going to get. </p>

<p>And PR isn’t totally wrong about 63 being a 800. The Official tests for physics in the CB books have a 800 as a 59-61 for the minimum, so a 63 raw score probably will guarantee you an 800 97% of the time. It is unlikely the minimum raw score for physics is going to oscillate (pun intended) by more than 4 points.</p>