<p>Case Western has a recent yield rate of 20.8% (2009 USN&WR Ultimate College Guide).
I’m guessing it loses a lot of cross admits to Carnegie Mellon, and that students in the Northeast don’t see it as better enough or its location attractive enough not to stay more local at RPI, WPI or Lehigh. It may also lose Midwesterners to science and engineering programs at large state flagships.</p>