The interviewers are looking for the unique qualities and value statements that set you apart from the other students hoping to attend Yale University School Of Medicine. They'll expect you to thoroughly research the website and learn everything you can about their Physician Associate program. Align yourself with the qualities they value in their alumni. You can find these in their value statements and key phrases, such as, "We were taught to be good thinkers and clinicians, not just good PA students." and "building contexts of trust and openness, in which ingenuity, creativity, and innovation can thrive." So, while performing your research, identify the manners in which you already embrace those qualities they try to promote and foster in their curriculum. Although these don't count as pre-requisites, the more ways you fit their mold, the better your chances of admittance.