Descriptor
| Adaptive Testing | 1 |
| Computer Assisted Testing | 1 |
| Context Effect | 1 |
| Item Banks | 1 |
| Test Construction | 1 |
| Test Items | 1 |
| Test Length | 1 |
| Testing Problems | 1 |
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| Journal of Educational… | 1 |
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| Kiely, Gerard L. | 1 |
| Wainer, Howard | 1 |
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| Journal Articles | 1 |
| Opinion Papers | 1 |
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Peer reviewedWainer, Howard; Kiely, Gerard L. – Journal of Educational Measurement, 1987
The testlet, a bundle of test items, alleviates some problems associated with computerized adaptive testing: context effects, lack of robustness, and item difficulty ordering. While testlets may be linear or hierarchical, the most useful ones are four-level hierarchical units, containing 15 items and partitioning examinees into 16 classes. (GDC)
Descriptors: Adaptive Testing, Computer Assisted Testing, Context Effect, Item Banks
