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Direct linkPetscher, Y.; Pentimonti, J.; Stanley, C. – National Center on Improving Literacy, 2019
Reliability is the consistency of a set of scores that are designed to measure the same thing. Reliability is a statistical property of scores that must be demonstrated rather than assumed.
Descriptors: Scores, Measurement, Test Reliability, Error Patterns
Peer reviewedGardner, John – Oxford Review of Education, 2013
Evidence from recent research suggests that in the UK the public perception of errors in national examinations is that they are simply mistakes; events that are preventable. This perception predominates over the more sophisticated technical view that errors arise from many sources and create an inevitable variability in assessment outcomes. The…
Descriptors: Educational Assessment, Public Opinion, Error of Measurement, Foreign Countries
Download full textMichaelides, Michalis P.; Haertel, Edward H. – Center for Research on Evaluation Standards and Student Testing CRESST, 2004
There is variability in the estimation of an equating transformation because common-item parameters are obtained from responses of samples of examinees. The most commonly used standard error of equating quantifies this source of sampling error, which decreases as the sample size of examinees used to derive the transformation increases. In a…
Descriptors: Test Items, Testing, Error Patterns, Interrater Reliability
