What is the probability of an irregularity in the scanning and/or scoring process?

<p>Well, guys, that’s the main question: What is the probability of an irregularity in the scanning and/or scoring process in the SAT/SAT Subject Test(s)?</p>

<p>For further clarification, I am a senior, I did my SATs. This concerns the SAT Subject Test I have taken (Biology E/M)-which also applies for the SAT-and I was wondering whether such an error is even possible, please talk out of experience. I got a nasty 690, when the least I should have got is a 750+. HUGE difference for me. Also, note that the test was TOO SILLY for anybody to get below the perfect score.</p>

<p>If it happened to you, let me know. :)</p>