An empirical study of the predictive validity of number grades in medical school using 3 decades of longitudinal data: implications for a grading system.

Gonnella JS, Erdmann JB, Hojat M. An empirical study of the predictive validity of number grades in medical school using 3 decades of longitudinal data: implications for a grading system. Med Educ. 2004 Apr; 38(4):425-34.

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