Question Concerning MC Writing Section

<p>I have been taking a bunch of practice tests online, and have been ranging from 6 to 3 wrong on the MC portion (I have gotten all 12's in my essays, but I know, I will probably only get a 10).</p>

<p>So now my question is, how accurate are these tests (College Board Practice Test from Online Course) and what would be an accurate range where my scores would fall this time???</p>