In this paper we describe a statistical procedure to account for differences in grading practices from one course to another. The goal is to define a course "inflatedness" and a student "aptitude" that best captures one's intuitive notions of these concepts.
@article{arxiv.1209.0790,
title = {A Regression Approach to Fairer Grading},
author = {Robert J. Vanderbei and Gordon Scharf and Daniel Marlow},
journal= {arXiv preprint arXiv:1209.0790},
year = {2012}
}