College and university rankings, especially the well-known U.S. News rankings, have drawn significant criticism from within and without higher education. Critics feel that the rankings are arbitrary and based on criteria unimportant to education itself (especially wealth and reputation); they also charge that, with little oversight, colleges and universities inflate their reported statistics. Beyond these criticisms, critics claim that the rankings impose ill-considered external priorities on college administrations, whose decisions are sometimes driven by the need to create the most desirable statistics for reporting to U.S. News rather than by sound educational goals.
Other critics, seeing the issue from students' and prospective students' points of view, claim that the quality of a college or university experience is not quantifiable, and that the ratings should thus not be weighed seriously in a decision about which school to attend. Individual, subjective, and random factors all influence the educational experience to such an overwhelming extent, they say, that no general ranking can provide useful information to an individual student.
Suppose, as these critics illustrate, that the difference between an "excellent" school and a "good" one is often that most of the departments in the excellent school are excellent, while only some of the departments in the good school are excellent. And the difference between an excellent department and a good one might be, similarly, that most of the professors in the excellent department are excellent, while only some in the good department are. For an individual student, depending on the student's choices of field of study and professors, this will often mean that there is no difference between an excellent college or university and a merely good one; the student will be able to find excellent departments and excellent faculty to work with even at an institution which might be ranked "second-tier" or lower. Statistically, the rankings are distributions with large variances and small differences between the individual universities' means (averages).
