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Adams, Raymond J. – Studies in Educational Evaluation, 2005
Test reliability is a concept central to classical test theory and it is commonly stated as a requirement that a test attain a certain level of reliability before it be considered of sufficient quality for practical use. This article discusses the role of reliability in item response theory, and in particular the role of reliability in contexts…
Descriptors: Test Reliability, Error of Measurement, Item Sampling, Item Response Theory