<p>For Barrons and PR, I used the raw score conversion guide offered by the CB BB. I ignored the conversion table in PR to raise the difficulty level. For Sparknotes, my scores do not take into the account the errors Sparknotes made.</p>
<p>You can’t really predict the probability of getting an 800, since that depends on how much you improve, the difficulty/scoring of the practice tests compared to the real test, etc.</p>
<p>If you really want to approximate, you can input your scores and establish a confidence interval based on those scores, then use a certain level of confidence (90%, 95%, etc.)</p>
<p>For Math II, the second Barron’s score is concerning. You’re other scores are fine, but the 640 on Barron’s puts you on the edge of an 800. You’re almost there though. Just keep reviewing Barron’s and take its Math II practice tests. </p>
<p>Since we’re on the subject of the physics SAT, which of three books mentioned above have the most accurate tests? I have Kaplan but I haven’t heard good things about it.</p>