<p>Speaking as a non-science major who's studied analogous trade-offs pretty extensively and as a medical student, here's my thoughts.</p>
<p>1.) There is no question that in some ways, the process favors non-science applicants. It does seem diverse, in both interviews and essays. How exactly is a biology major supposed to answer "How did you choose your major?" (A question on the Johns Hopkins secondary.) Non-science majors also tend to have relatively higher MCAT scores, if memory serves. This is not surprising, as the MCAT is a reading comprehension test. With more interesting essays/interviews on average, as well as higher average MCAT scores, English majors could potentially use their studies as a major selling point. It is going to be very hard to impress a medical school professor about cancer biology; he likely knows most of what you know. But Shakespeare? You can truly make him think you're a genius.</p>
<p>2.) There is similarly no question that in some ways, being a non-science major disadvantages applicants. There will be a natural skepticism regarding, say, an Art major. Can he handle the workload? Is he interested in medicine? Will he be a good scientist? The relative paucity of advanced science courses, the unfamiliarity of admissions committees with the courses they do take, less-accessible research or less-obviously-relevant research, and the loss of LORs from science seminars all harm non-science applicants. There is also the need to convince people that you have studied useful things. Everybody knows why cancer biology is useful. But Shakespeare? You can talk on and on about Shakespeare and many medical school admissions officers will want to know: "Who cares?"</p>
<p>3.) If I remember correctly, NCG has quoted studies which show that science majors perform slightly better during the first two (unimportant) years of medical school, while their non-science peers surpass them during the second two (important) years. This can be interpreted in two non-mutually-exclusive ways.</p>
<p>a.) First, it shows that non-science majors make excellent candidates.
b.) Second, however, it may be evidence of discrimination against them. Thinking about it from an economics perspective, if non-science majors tend to outperform their science-major peers, it means that the school should probably be admitting the NSM applicants at the border in favor of some of the SM applicants at the border.</p>
<p>4.) The data says that on average, points (1) and (2) balance out. The AAMC data is very clear that most categories of majors have identical admissions rates and very similar GPAs and MCAT scores, on average.</p>
<p>5.) Here's the most important point. (4) is not true for every single person. For example, it is natural for adcoms to wonder: why is an Art Major applying to medical school? A good interview/essay can help mitigate these concerns, but not every Art Major is necessarily a good interviewer/writer. Bad interviewees would likely be better served by a major which would raise fewer questions. Brilliant interviews and essays will actually be a selling point; a clear passion for the intersection of art (say, documentary photo) and medicine is a powerful way to push yourself into somebody's memory and truly impress them. On the other hand, bad interviews and essays will convey the sense that you are without direction, bored, using medicine as a backup plan, picking easier majors as a cop-out, or simply not very organized.</p>
<p>In other words, a non-science major can be hit or miss. Some will benefit from it, some won't. The data says that on average, the two pools cancel out -- but any given student is only in one or the other.</p>
<p>For what it's worth, I took a Medical Economics seminar my senior year. There were four economics major premeds in the class, and only one of us was particularly brilliant (not me). A catalog of our admissions would include, among others, Duke (x2), Baylor (x2), Michigan, WUSTL, UCSF, and Penn -- at the time, all top-ten research institutions. Eight top-ten admissions among four pretty-smart kids isn't a bad ratio.</p>