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| Adaptive Testing | 6 |
| Computer Assisted Testing | 6 |
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| Applied Psychological… | 3 |
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| van der Linden, Wim J. | 6 |
| Schnipke, Deborah L. | 2 |
| Scrams, David J. | 2 |
| Chang, Hua-Hua | 1 |
| Reese, Lynda M. | 1 |
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| Journal Articles | 3 |
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| Reports - Descriptive | 2 |
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Peer reviewedChang, Hua-Hua; van der Linden, Wim J. – Applied Psychological Measurement, 2003
Developed a method based on 0-1 linear programming to stratify an item pool optimally for use in alpha-stratified adaptive testing. Applied the method to a previous item pool from the computerized adaptive test of the Graduate Record Examinations. Results show the new method performs well in practical situations. (SLD)
Descriptors: Adaptive Testing, Computer Assisted Testing, Item Banks, Linear Programming
Peer reviewedvan der Linden, Wim J. – Applied Psychological Measurement, 1998
Reviews optimal test-assembly literature and introduces the contributions to this special issue. Discusses four approaches to computerized test assembly: (1) heuristic-based test assembly; (2) 0-1 linear programming; (3) network-flow programming; and (4) an optimal design approach. Contains a bibliography of 90 sources on test assembly.…
Descriptors: Adaptive Testing, Computer Assisted Testing, Heuristics, Linear Programming
Peer reviewedvan der Linden, Wim J.; Reese, Lynda M. – Applied Psychological Measurement, 1998
Proposes a model for constrained computerized adaptive testing in which the information in the test at the trait level (theta) estimate is maximized subject to the number of possible constraints on the content of the test. Test assembly relies on a linear-programming approach. Illustrates the approach through simulation with items from the Law…
Descriptors: Ability, Adaptive Testing, Computer Assisted Testing, Estimation (Mathematics)
Optimal Stratification of Item Pools in a-Stratified Computerized Adaptive Testing. Research Report.
Download full textvan der Linden, Wim J. – 2000
A method based on 0-1 linear programming (LP) is presented to stratify an item pool optimally for use in "alpha"-stratified adaptive testing. Because the 0-1 LP model belongs to the subclass of models with a network-flow structure, efficient solutions are possible. The method is applied to a previous item pool from the computerized…
Descriptors: Adaptive Testing, Computer Assisted Testing, Item Banks, Linear Programming
van der Linden, Wim J.; Scrams, David J.; Schnipke, Deborah L. – 2003
This paper proposes an item selection algorithm that can be used to neutralize the effect of time limits in computer adaptive testing. The method is based on a statistical model for the response-time distributions of the test takers on the items in the pool that is updated each time a new item has been administered. Predictions from the model are…
Descriptors: Adaptive Testing, Algorithms, Computer Assisted Testing, Linear Programming
van der Linden, Wim J.; Scrams, David J.; Schnipke, Deborah L. – 1998
An item-selection algorithm to neutralize the differential effects of time limits on scores on computerized adaptive tests is proposed. The method is based on a statistical model for the response-time distributions of the examinees on items in the pool that is updated each time a new item has been administered. Predictions from the model are used…
Descriptors: Adaptive Testing, Algorithms, Computer Assisted Testing, Foreign Countries
