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An Evaluation of One- and Three-Parameter Logistic Tailored Testing Procedures for Use with Small Item Pools.

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McKinley, Robert L.; Reckase, Mark D. – 1983

A two-stage study was conducted to compare the ability estimates yielded by tailored testing procedures based on the one-parameter logistic (1PL) and three-parameter logistic (3PL) models. The first stage of the study employed real data, while the second stage employed simulated data. In the first stage, response data for 3,000 examinees were…

Descriptors: Adaptive Testing, Computer Assisted Testing, Estimation (Mathematics), Item Banks

The Use of Unidimensional Item Parameter Estimates of Multidimensional Items in Adaptive Testing.

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Ackerman, Terry A. – 1987

The purpose of this study was to investigate the effect of using multidimensional items in a computer adaptive test (CAT) setting which assumes a unidimensional item response theory (IRT) framework. Previous research has suggested that the composite of multidimensional abilities being estimated by a unidimensional IRT model is not constant…

Descriptors: Adaptive Testing, College Entrance Examinations, Computer Assisted Testing, Computer Simulation