<p>has the ACT changed in the last few years? i've gotten a book from the library that was published in 2001, by Barron's, and was wondering if this would be an accurate score predicter??</p>
<p>I was told by a friend that the science section was recently made harder, but I don't have any links to substantiate this. </p>
<p>An essay section was added, but this is optional and has no effect on your composite (the essay is scored separately from the multiple choice test).</p>
<p>Other than these things, I'm fairly certain the ACT is exactly the same today as it was in 2001.</p>
<p>However, while the ACT may not have changed much, the quality of practice books has generally increased with each successive year. So while the 2001 edition may not be a bad score predictor, I think that the latest edition would probably be a better score predictor.</p>