<p>I think that the only explanation for all of these schools having >50% yield is this “Tufts Effect.” This is what I am concerned about. Schools/AO’s working with connected middle school counselors making assumptions and a match and possibly sharing information about applicants. If a qualified applicant is applying to several of these top schools, there is a reasonable chance that this person would legitimately get accepted to more than one and therefore have to choose. How many kids only applied to Andover or Exeter? How many kids who applied were accepted to Andover (yield rate 78%) also applied and were accepted to Exeter (yield rate 68%) and vice versa? Or received a better financial aid package at Choate (yield rate 66%) or SPS (yield rate 67%). There must be some overlap in acceptances to get to a lower yield rate at some particular school. Are kids really saying its either ____ or LPS? Or is there some gaming of the system somewhere. It doesn’t really matter, but I think that the phenomenon is certainly interesting enough to raise an eyebrow over and question reliability of the data.</p>