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Ahhhhh… The double waitlist. It works like this: Every year, each school admits a sufficient number of students to get the class size it needs. Like airlines, who deliberately overbook, because they know that statistically there is some percentage of flyers holding confirmed tickets that simply never turn up, each school will base the number of students that it admits with an eye to what the class size will be like after the expected yield. </p>
<p>They can get it wrong. Last year MIT’s yield was higher than expected and out of sync with recent history. The end result of that was that no kids were taken off of the waitlist. Other years MIT has taken 100 off of the waitlist. The goal is always to hit the target class size. Any number under that represents money lost, any over that may be hard to provide housing for. I remember one year that Boston University had abnormally high yield and ended up having to rent the entire Sheraton hotel for a year, as it simply did not have enough student housing. That is the sort of disaster that ends the careers of deans of admissions.</p>
<p>Anyhow, the students taken off the waitlist will already have accepted offers of admissions at other institutions, and usually paid their deposits. They will now simply walk away from those deposits to accept offers at MIT. However, there will also be a small percentage of students who have accepted offers of admission at MIT, where MIT was their second choice school (yes, hard to believe but true). They will in turn walk away from their MIT deposit. That is a normal part of the process.</p>
<p>However, the admissions office needs to hit a target number. In order to guard against a disproportionate and unexpectedly large number of students walking away from their places at MIT, when most schools (including MIT) go to their waitlist, then they do three things:
- Admit a number of students off of the waitlist<br>
- Release nearly all of the remaining students from the waitlist
- Take a very tiny number of students and tell them that they are on the waitlist AGAIN, in case they are needed.</p>
<p>This third batch is the dreaded “double waitlist”. Most of the double waitlisted students will not be offered admission, but these are the group that know that they really did come as close as it was possible to come, without being admitted. </p>
<p>As a regional chair of the educational council, I make sure that the EC’s in my region call to congratulate all of their admitted students each year, but also that they call all of the waitlisted students in the region to talk them through precisely what that means and what they should do (example: ABSOLUTELY accept an offer somewhere else). Its talking to the double waitlisted students that is hard. Fortunately, they are extremely rare. I think that my region gets about 1-2 per decade. That being said, I have had one of my interviewees double waitlisted about 5 years ago. </p>
<p>It is all part of that wonderful admissions process, and this is a part that is not unique to MIT, but common to most schools.</p>