@Canuckguy , even not all MIT students are in the top 0.25% of anything. Some of them, I daresay, are mere engineers, proficient at the same math that engineers from [gasp] Purdue or someplace can do, not math geniuses. (Purdue, by the way, has an excellent English department, too. I have a friend who got her PhD there.) I stand by the proposition inherent in the first post in this thread: there is a sizable population of humanities and social science oriented students who would be qualified applicants to MIT, and whom MIT might well admit, who do not apply to MIT because they don’t understand it to be a viable option. Look, @MITChris , who surely should know, suggests that the MIT admissions staff actually tries to admit such people, only to find them migrating into engineering – of course, their skills support that choice – once they arrive, due to peer pressure. And perhaps to the experience of MIT’s core, which makes them excited about engineering and confident that they can handle it at least as well as the next kid.
A word about the Arcidiacono study, which I think you are waaaaaay over-reading. If I understand it correctly, it doesn’t really tell you much about any particular group. Essentially, with two small exceptions, all group-level GPA and class-rank changes over the course of college are the result of course- and major-selection. People who start out doing badly improve their grades by taking courses (and majors) with more grade inflation. The first exception is a subgroup of students with relatively low test scores at the application stage whom the admissions department has identified as having exceptional potential to improve. On average, they do, a little. They struggle a bit at first and catch up more than you would expect given their major choices. Second, some significant portion of Asian students tend to go slack their senior years, presumably after they have already cashed in their GPAs.
Another thing Arcidiacono’s data seem to show – and this is truly a shocker – is that students in all groups who struggle with STEM and then switch majors on average have lower test scores that the students who don’t. Knock me over with a feather. In some groups, the average SAT differences are large; in others not so large.
The treatment of legacies in the study is not particularly interesting. As with minority groups, legacies’ apparent improvement in GPA and class rank relative to the average white nonlegacy student is accounted for by major switching. Whoop-de-doo, because pretty much all changes in GPA and class rank are the result of that. Legacies (who include some unspecified number of minority students) have slightly lower GPAs than the average white nonlegacy student as freshmen, largely because they are significantly more likely to be taking a STEM-heavy curriculum, but are better prepared to do so. The percentage of legacies who switch major areas is much lower than for minorities, but it’s enough to reverse the small initial difference vs. average white nonlegacy students. I don’t think you can really draw any conclusions from that, though, because based on the rest of the article it looks like if you made a random selection among students in the lower half of the class by GPA after freshman year, it would have similar dynamics by graduation.
Broken down by race and sex, there was no group that didn’t have significant switching out of STEM, although white males as a group switched a lot less than others. Part of African-Americans’ high switch rate was obviously due to the fact that many fewer of them identified themselves as undecided before enrollment compared to other groups. Undecideds in all groups broke between STEM and HASS in about the same percentages.
So here are some propositions that are NOT supported by the study:
– All students in STEM majors have higher test scores than all students in HASS majors. (The biggest average difference in any group, by the way, is about 40 points out of 1600. For white males, it’s less than 20. If there were a Venn diagram, the overlapping portion would be much larger than the non-overlapping portions.)
– Few or no students in HASS majors would be capable of doing the work in a STEM major.
– Most students in HASS majors originally wanted to be STEM majors. (Actually, overall, it’s very few.)
– Legacies switch from STEM to HASS at a higher rate than others.
– Legacies are less prepared than nonlegacies (that’s specifically contradicted).