<p>Forgive my lack of knowledge on this topic, but if you've already taken the regular SAT, can you sign up to only take the subject tests, or do you have to take the whole thing?
Thanks!</p>
<p>yep. they're totally separate. you can take the subject tests regardless of what you did or didnt do on the regular SAT.</p>
<p>In fact, you can't take the regular SAT and the SAT II's on the same day.</p>
<p>Yep that's right.
You can't take SAT and SAT IIs on the same day and you can only take 3 SAT IIs on the same day.</p>
<p>thanks everyone for the info!</p>
<p>They're seperate tests. When you register, you will have the option of choosing which test to take on that day. They are administered at the same time, so you only can take one. And you can take either regardless of if you've taken one or the other before.</p>