Descriptor
| Difficulty Level | 1 |
| Graphs | 1 |
| Item Analysis | 1 |
| Item Response Theory | 1 |
| Research Methodology | 1 |
| Research Problems | 1 |
| Standards | 1 |
| Test Construction | 1 |
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| Journal of Educational… | 1 |
Author
| Wainer, Howard | 1 |
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| Journal Articles | 1 |
| Reports - Evaluative | 1 |
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Peer reviewedWainer, Howard – Journal of Educational Statistics, 1991
A graphical-decision rule for studying an item's behavior and admitting items onto a test form is proposed. The tool--the isthmus of acceptance--ameliorates some parameter stability problems common to binary item response theory models by using a functional representation of item performance, and it is tuned to match current standards. (TJH)
Descriptors: Difficulty Level, Graphs, Item Analysis, Item Response Theory
