<p>Do the edition of a test book matter for the ACT, SAT, or AP?</p>
<p>not if its recent</p>
<p>Like, What if it's a 2006-2007 editions? Not 2007-2008?</p>
<p>I'm pretty sure something like that won't matter too much. If you're willing to buy another book, go for it. I think for things like SAT/ACT, the edition doesn't really matter at all, since they haven't majorly revamped it (I believe CB's blue book is from 2004). AP tests might change, but I'm not too sure about that, seeing as how I haven't taken an AP test before...</p>