these are not rankings they are classifications and the Carnegie Foundation specifically disavows the use of their classifications as rankings and they make that very clear
http://carnegieclassifications.iu.edu/re...s/faqs.php
Where are the Carnegie rankings?
The Carnegie Foundation does not rank colleges and universities. Our classifications identify meaningful similarities and differences among institutions, but they do not imply quality differences.
Why did the Carnegie Foundation move away from its original single classification system?
A single classification cannot do justice to the complex nature of higher education today. When the Carnegie Classification was created in 1970, there were about 2,800 U.S. colleges and universities. Today there are more than 4,500.
Colleges and universities are complex organizations, and a single classification masks the range of ways they can resemble or differ from one another. As valuable as it has been, the basic framework has blind spots. For example, it says nothing about undergraduate education for institutions that award more than a minimum number of graduate degrees. Yet most of these institutions enroll more undergraduates than graduate or professional students.
Another motivation for these changes has to do with the persistent confusion of classification and ranking. For years, both the Carnegie Foundation and others in the higher education community have been concerned about the extent to which the Carnegie Classification dominates considerations of institutional differences, and especially the extent to which it is misinterpreted as an assessment of quality, thereby establishing aspirational targets. This phenomenon has been most pronounced among doctorate-granting institutions, where it is not uncommon to find explicit strategic ambitions to “move up” the perceived hierarchy. By introducing a new set of classifications we hope to call attention to the range of ways that institutions resemble and differ from one another and also to de-emphasize the improper use of the classification as informal quality touchstone.