<p>Here are the RD yields at the Ivies (+ Stanford) for the Class of 2009. Compare these with the advertized overall yield rates, and you will see the boost generated by the ED programs (or SCEA in the cases of Harvard and Yale.)</p>
<p>2009 RD yields: H-67.9%; Prin-52%; Y-57.1%; S-55.7%; Penn 48.4%; B - 46.3%; D -40.5%; Col 46.8%; Cornell 36.7% (Note that this yield rate includes the yield rate on deferred early applicants and on waitlist admits.)</p>
<p>That's because I had to combine Columbia College and SEAS. If I knew how many applied ED to Columbia College, I would have the data to separate the numbers and admit rates.</p>