<p>kathleen2010–In such cases, I advise students to submit the ACT and, if possible, a couple of SAT Subject Test scores, too, even if not submitting the SAT I results. At the most selective colleges, you will be “competing” with applicants who have taken–and scored well on–a whole barrage of Subject Tests and who can thus showcase strengths in areas outside of those covered by the ACT or SAT I (foreign language, physics, history, etc.).</p>
<p>So my advice is this: If a college will allow the ACT score to place BOTH the SAT I and the SAT II, and if all your SAT results are mediocre but your ACT is stronger, then send just the ACT. But if you can combine a good ACT with some good Subject Tests, then that’s the way to go.</p>