<p>On the common application, in the section for extracurricular activities, what is the PS box for? If I did the activity all four years of high school (in which case I shouldn't check off the 9,10,11,12 boxes)?</p>
<p>Oops I just realized that I posted in the wrong section. Sorry, guys.</p>
<p>I'm assuming that you would check PS if you have already graduated from HS, and did the activity after graduating.</p>