SAT II Chemistry Prep Question

<p>My brother used barron's 6th edition and a princeton review chem book to prepare for his sat ii chem test in 2003. I'm wondering if I could just use those books, or if the material/test format has changed at all since 2003. Can anybody help me out?</p>


<p>They're mostly the same.
I had a Barron's 2007 and 2002 physics, and the practice tests were identical.</p>