<p>im aiming for a score no lower than 750 and I'm confident im gonna get higher than that but I just don't wanna go into exam and mess up a couple questions and shake my confidence. I've been using Barron's and they're scales for the practices tests haven't been accurate. So I was wondering in terms of marks, how many can I get wrong before it goes lower than 750. For both bio and chem please. Also is Barron's the best for both of them? Cause I hear Barron's is way harder than the actual test and provides some unnecessary information. </p>
<p>I have taken Chem not Bio and I used the Barron’s book for practice. It was definitely much harder than the actual test. I would often score around 700 sometimes less and I still got an 800 on the real test. I think Barron’s delves too deep into the topic. I recommend looking into other practices for a more accurate prediction such as Kaplan’s. Those other prep books probably also give you a better overview of all the topics covered in the test. If there are any particular areas you see yourself struggling in, then maybe you can look into the Barron’s book for more in depth explanation. </p>
<p>In terms of how many questions you can miss, it really depends on the test and the curve on it because some tests are harder than others. I think typically it is around 5 but don’t quote me on that.</p>
<p>I took bio and i also used the Barron’s, which is a bit harder than the actual thing. Scored around 720s-730s on practice tests, got a 770 on the real thing (E). However, great explanation of material (especially some stuff my teacher didn’t cover). I heard princeton review is also a really great book for the bio SAT but I never got a chance to use it. For bio you can get I think max of 2-3 questions (not 100% sure) and still get an 800 - curve is easier on E. </p>