An approach to essay grading based on signal detection theory (SDT) is presented. SDT offers a basis for understanding rater behavior with respect to the scoring of construct responses, in that it provides a theory of psychological processes underlying the raters' behavior. The approach also provides measures of the precision of the raters and the…

Several methods for determining a passing score on an examination from individual raters' estimates of minimal pass levels were compared through simulation. The methods used differed in the weighting estimates for each item received in the aggregation process. Reasons why the simplest procedure is most preferred are discussed. (SLD)

Whether cutting score equivalents (CSEs) based on examinee performance are the same as CSEs based on expert judgment was examined using data from 3,262 examinees taking an internal medicine certification examination. CSEs produced by 40 physicians/experts were closer to the criteria than were standards derived from examinee performance. (SLD)