<p>To me, the more interesting question is not why there is grade inflation from school to school (although that IS a very interesting question), but rather, even more interestingly, why is it that there is grade inflation WITHIN schools, and in particular, why is it that engineering courses invariably seem to have lower grades than other courses. Of all the schools that comprise the Northwestern data indicates that the school with the lowest average grades is, to no surprise, the McCormick engineering school. Why is that?</p>