<p>One good way to judge how USC views a GPA from your high school is to look at the statistics on previously admitted students. Does your school use Naviance? My D also attended a private school that did not weight grades or rank students. Using Naviance we were able to see that the average GPA of admitted students was lower than USC’s overall averages. So yes, USC does take into account which school you attend.<br>
None of us really know whether your scores and grades will qualify you for merit aid. My own gut feeling is that your test scores may be lower than most scholarship recipients but you should definitely apply by the earlier scholarship deadline.</p>