<p>Exactly how do they calculate the curve? I took a practice test and noticed a conversion chart on the back of the book... Don't they use that chart?</p>
<p>Also, if your online scores are out, does it mean that it has been sent to Colleges already, or does it take a while for them to do it?</p>
<p>It’s based on score distribution so only so many people can get some score per test. Easier tests will have steeper curves while harder tests will have more lenient curves.</p>
<p>That means that there’s always a curve that helps us? So whatever we scored on the practice test, we’re most likely able to attain a higher score on the real test?</p>
<p>No because there’s a curve built into practice tests too. Since a lot of those pracitce tests are previous ACT tests, the chart in the back is the curve they used for that test. If a practice test isn’t a previous ACT test, they probably just estimate the curve based on how hard the test is compared to other tests. The curve people refer to is basically different scores between different tests for a certain number you get wrong. For example, 3 wrong on science might be a 33 one time and a 34 another time. It depends on how hard that specific test is and how well people do.</p>