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Peer reviewedMellenbergh, Gideon J.; van der Linden, Wim J. – Applied Psychological Measurement, 1979
For six tests, coefficient delta as an index for internal optimality is computed. Internal optimality is defined as the magnitude of risk of the decision procedure with respect to the true score. Results are compared with an alternative index (coefficient kappa) for assessing the consistency of decisions. (Author/JKS)
Descriptors: Classification, Comparative Analysis, Decision Making, Error of Measurement
