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Adaptive Testing2
Estimation (Mathematics)2
Reliability2
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Bayesian Statistics1
Computer Assisted Testing1
Error of Measurement1
Maximum Likelihood Statistics1
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Applied Psychological…2
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Nicewander, W. Alan1
Samejima, Fumiko1
Thomasson, Gary L.1
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Estimation of Reliability Coefficients Using the Test Information Function and Its Modifications.
Peer reviewed Peer reviewed
Samejima, Fumiko – Applied Psychological Measurement, 1994
The reliability coefficient is predicted from the test information function (TIF) or two modified TIF formulas and a specific trait distribution. Examples illustrate the variability of the reliability coefficient across different trait distributions, and results are compared with empirical reliability coefficients. (SLD)
Descriptors: Adaptive Testing, Error of Measurement, Estimation (Mathematics), Reliability
Some Reliability Estimates for Computerized Adaptive Tests.
Peer reviewed Peer reviewed
Nicewander, W. Alan; Thomasson, Gary L. – Applied Psychological Measurement, 1999
Derives three reliability estimates for the Bayes modal estimate (BME) and the maximum-likelihood estimate (MLE) of theta in computerized adaptive tests (CATs). Computes the three reliability estimates and the true reliabilities of both BME and MLE for seven simulated CATs. Results show the true reliabilities for BME and MLE to be nearly identical…
Descriptors: Ability, Adaptive Testing, Bayesian Statistics, Computer Assisted Testing