Jun 11, 2013
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Medical Student
I imagine they also use to to get an idea of how big their class will be. Maybe they have data on head to head acceptances. So if school A knows that historically they lose some percentage of students when those students are also accepted at school B, then school A will respond by sending out more acceptances to fill their class. Just a guess.
 

LizzyM

the evil queen of numbers
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Mar 7, 2005
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They might use it to strategically offer financial aid to applicants who have choices.
It can also be used going forward to assess the competition and where students who are not choosing to matriculate at a given medical school are choosing to go. I suppose if you have a ton of applicants with no other offers, you could use that to better estimate the size of the incoming class (you'll get all of those who have no other option, plus a proportion of those who have multiple offers).