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| McLeod, Lori | 1 |
| McLeod, Lori D. | 1 |
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| Thissen, David. | 1 |
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Peer reviewedMcLeod, Lori; Lewis, Charles; Thissen, David – Applied Psychological Measurement, 2003
Explored procedures to detect test takers using item preknowledge in computerized adaptive testing and suggested a Bayesian posterior log odds ratio index for this purpose. Simulation results support the use of the odds ratio index. (SLD)
Descriptors: Adaptive Testing, Bayesian Statistics, Computer Assisted Testing, Knowledge Level
Download full textMcLeod, Lori D.; Lewis, Charles; Thissen, David. – 1999
With the increased use of computerized adaptive testing, which allows for continuous testing, new concerns about test security have evolved, one being the assurance that items in an item pool are safeguarded from theft. In this paper, the risk of score inflation and procedures to detect test takers using item preknowledge are explored. When test…
Descriptors: Ability, Adaptive Testing, Bayesian Statistics, College Entrance Examinations
