Should I change my subject tests at last minute? (math 2, physics)

<p>(International student who only studied half a year's worth of physics and pre-calc) My test is this saturday already. I only got my graphing calculator last week and I'm just starting to learn how to use it. I tried answering practice tests for math 2 and physics and they're just average scores. I'm applying to MIT, Yale, Amherst and USC for Computer Science programs or something similar.</p>

<p>I have technically two school days' worth of breaktimes and one night of review in my country. I'm not sure if I should stick with these subject tests. (Math 2, physics)</p>

<p>Some other tests i considered:
-Chem (i need to review a year's worth of notes and tests if i'm switching to this)
-Math i (but they said this was lame compared to math 2, but i'm willing to switch if it means a better score)
-World History (relying on stock knowledge)</p>

<p>I really don't know what to do because these tests are extremely expensive for me and i don't wanna waste money. I was only open to the idea of applying for universities abroad very recently, so i wasn't able to prepare well. HELP!</p>

<p>MIT requires one math and one subject test (not sure about the other schools’ requirements) so if you are definitely applying to MIT and only taking two subject tests, I wouldn’t switch to a non-science test, otherwise you’ll have to take subject tests again and it’ll be more expensive.</p>

<p>Honestly, just stick with the tests that you’re most comfortable with. Math I has a harsher curve - you pretty much need a perfect score for 800, but on Math II you can miss a few and still get 800 (I have no idea why, considering 13-14% score 800 on Math II).</p>

<p>You’ll need Math 2 (math 1 is not worth it) and a science test. So the only thing i would consider is switching physics to chemistry. Otherwise no.</p>