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Computerized Adaptive Testing in Instructional Settings.
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Welch, R. Edwin; Frick, Theodore W. – Educational Technology, Research and Development, 1993
Discusses the use of computerized adaptive testing (CAT) in the classroom. Highlights include item response theory; sequential probability ratio test (SPRT); combining SPRT with expert system reasoning, resulting in EXSPRT; and a study of college students that examined the efficiency and accuracy of the various CAT methods discussed. (Contains 16…
Descriptors: Adaptive Testing, Computer Assisted Testing, Expert Systems, Higher Education
EXSPRT: An Expert Systems Approach to Computer-Based Adaptive Testing.
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Frick, Theodore W.; And Others – 1989
Expert systems can be used to aid decision making. A computerized adaptive test (CAT) is one kind of expert system, although it is not commonly recognized as such. A new approach, termed EXSPRT, was devised that combines expert systems reasoning and sequential probability ratio test stopping rules. EXSPRT-R uses random selection of test items,…
Descriptors: Adaptive Testing, College Students, Computer Assisted Testing, Expert Systems
Bayesian Adaptation during Computer-Based Tests and Computer-Guided Practice Exercises.
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Frick, Theodore W. – Journal of Educational Computing Research, 1989
Demonstrates how Bayesian reasoning can be used to adjust the length of computer-guided practice exercises and computer-based tests to help make mastery or nonmastery decisions. Individualization of instruction is discussed, and the results of an empirical study that used the sequential probability ratio test (SPRT) are presented. (25 references)…
Descriptors: Adaptive Testing, Computer Assisted Instruction, Computer Assisted Testing, Higher Education
Computerized Adaptive Mastery Tests as Expert Systems.
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Frick, Theodore W. – Journal of Educational Computing Research, 1992
Discussion of expert systems and computerized adaptive tests describes two versions of EXSPRT, a new approach that combines uncertain inference in expert systems with sequential probability ratio test (SPRT) stopping rules. Results of two studies comparing EXSPRT to adaptive mastery testing based on item response theory and SPRT approaches are…
Descriptors: Adaptive Testing, Comparative Analysis, Computer Assisted Testing, Expert Systems
A Comparison of an Expert Systems Approach to Computerized Adaptive Testing and an Item Response Theory Model.
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Frick, Theodore W. – 1991
Expert systems can be used to aid decisionmaking. A computerized adaptive test is one kind of expert system, although not commonly recognized as such. A new approach, termed EXSPRT, was devised that combines expert systems reasoning and sequential probability ratio test stopping rules. Two versions of EXSPRT were developed, one with random…
Descriptors: Adaptive Testing, Comparative Analysis, Computer Assisted Testing, Expert Systems
An Investigation of the Validity of the Sequential Probability Ratio Test for Mastery Decisions in Criterion-Referenced Testing.
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Frick, Theodore W. – 1986
The sequential probability ratio test (SPRT), developed by Abraham Wald, is one statistical model available for making mastery decisions during computer-based criterion referenced tests. The predictive validity of the SPRT was empirically investigated with two different and relatively large item pools with heterogeneous item parameters. Graduate…
Descriptors: Achievement Tests, Adaptive Testing, Classification, Comparative Analysis