I only remember being asked this by a few schools. Are you applying to historically black schools, DO programs, or places focused on rural medicine? I think Howard asked but the FAQ claimed it was just for their own data that wouldn't impact admission. I was highly suspicious that they were trying to see if application to their unique program was consistent w your application list (i.e. are you claiming to looove rural med, but all your other schools are urban? are you swearing a passion for treating underserved minorities but really applying to schools in the least diverse regions? does it look like a list of schools chosen for lowest mcat or GPA?) It made me uneasy, but I answered honestly (although, I answered only relative to schools completed prior to that secondary)