<p>
[quote]
"You need to understand that most students who take ACT are those who don't do well on SAT."</p>
<p>That is not correct. Most students take whatever is the preferred test in the region of the country where they live.
[/quote]
</p>
<p>It is largely correct for applicants in traditionally SAT-dominated regions. Where the SAT used to rule, the ACT has become popular as a way for people who are "bad at tests" to circumvent the IQ and logic-puzzle aspect of the SAT, which is the more elusive and discriminating (that is, aptitude-detecting) feature of the test. The ACT is understood to be a more routine test to prepare for, and thus an alternate route for people who are weaker at the logic games.</p>
<p>The ACT also allows the applicant to control which test results are released. An applicant can hedge against low SAT scores by taking the ACT as often as needed and submitting the highest score, if it significantly exceeds the SAT results (if it is slightly higher, it just confirms the SAT results so this may not be a good strategy). Of course, this strategy is available to all applicants, weak or strong on the SAT, but those who are weak, or think that they might be, have the greater incentive to play the ACT card. </p>
<p>One of the admissions officers on CC noted that whenever he has seen scores from both tests in one application, the ACT score is always higher. That is what would be expected from strategic ACT-taking.</p>
<p>So yes, at least in SAT-land, the ACT has features that make it attractive to those who are weak on the SAT, and it is rapidly gaining popularity in those regions for precisely that reason. This, I think, is what the previous poster was talking about. There was indeed an article on this phenomenon, linked in CC.</p>
<p>As to conversion, yes, an SAT-centric school will convert the results, but the issue for the OP is whether they look at the converted ACT as a separate piece of information or subsume it in a "superscore" calculation.</p>