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<p>I think the answer would not be because it is trivial, but because it would be virtually impossible. What is the basis for the graduate peer assessments by either the NRC or US News? It would seem to be a combination of research output (primarily publication quantity, quality, impact) and the halo effect of past rankings. How would anyone isolate the quality of undergraduate department research output from graduate department output to perform an undergraduate assessment on the same basis? What would be the basis for LAC department scores? Teaching quality? Nope. I don’t think anyone knows how to assess that by any method but unreliable student surveys.</p>