Evaluation of physical impairment is a procedure involving purely medical considerations. Rating of disability, on the other hand, involves a host of psychological, sociological, and economic factors. However, doctors, who are especially qualified to rate impairment, are often called upon to evaluate disability, for which function they are not so qualified. Dr. Palmer discusses the prevailing confusion between these two concepts, and sets out the work and proposals of the A.M.A. in this area.
Dwight M. Palmer,
Medical Evaluation of Impairment -- Not Disability,
16 Vanderbilt Law Review
Available at: https://scholarship.law.vanderbilt.edu/vlr/vol16/iss4/6