Can you register for only 1 SATii and then take more on test day?

<p>K pretty much the same as my last post, but maybe the wording is clearer on this.</p>

<p>Basically, I know you can take whatever SAT iis you want on test day. You could sign up for physics but decide last minute to take German. Etc. My question is, does the same reasoning apply to the NUMBER of subject tests you take; ie, can you sign up for 1 but decide last minute to take 3? Conversely, can you sign up for 3 but decide to take only 1 (without getting a 200 for the ones you signed up for but didn't take)?</p>

<p>If you sign up for 1 and take 3, you'll have to pay for the two extra tests later on.</p>

<p>If you sign up for 3 and take 1, I don't think you'll get any refund back on the 2 tests.</p>