Educational Measurement Issues and Practice · 1995 · 128 citations · 8 references
EducationEducational AssessmentEducational MeasurementGeneralizability TheoryPerformance AssessmentPsychometricsError Variance DecompositionPerformance EvaluationPerformance MeasuresPerformance TasksTest ReliabilityAssessmentsAssessor ReliabilityError Variance EstimationInterrater ReliabilityPerformance Assessment ValidityRater ErrorsRater VarianceReliability Of Performance Assessment
How can the contributions of raters and tasks to error variance be estimated? Which source of error variance is usually greater? Are interrater coefficients adequate estimates of reliability? What other facets contribute to unreliability in performance assessments?
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