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Peer reviewed Peer reviewed
Lunz, Mary E.; And Others – Applied Measurement in Education, 1990
An extension of the Rasch model is used to obtain objective measurements for examinations graded by judges. The model calibrates elements of each facet of the examination on a common log-linear scale. Real examination data illustrate the way correcting for judge severity improves fairness of examinee measures. (SLD)
Descriptors: Certification, Difficulty Level, Interrater Reliability, Judges
Peer reviewed Peer reviewed
Dunbar, Stephen B.; And Others – Applied Measurement in Education, 1991
Issues pertaining to the quality of performance assessments, including reliability and validity, are discussed. The relatively limited generalizability of performance across tasks is indicative of the care needed to evaluate performance assessments. Quality control is an empirical matter when measurement is intended to inform public policy. (SLD)
Descriptors: Educational Assessment, Generalization, Interrater Reliability, Measurement Techniques