Descriptor
| Ability | 1 |
| Achievement Tests | 1 |
| Comparative Analysis | 1 |
| Computer Simulation | 1 |
| Difficulty Level | 1 |
| Guessing (Tests) | 1 |
| Item Bias | 1 |
| Item Response Theory | 1 |
| Sample Size | 1 |
Source
| Applied Measurement in… | 1 |
Publication Type
| Journal Articles | 1 |
| Reports - Research | 1 |
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedBarnes, Laura L. B.; Wise, Steven L. – Applied Measurement in Education, 1991
One-parameter and three-parameter item response theory (IRT) model estimates were compared with estimates obtained from two modified one-parameter models that incorporated a constant nonzero guessing parameter. Using small-sample simulation data (50, 100, and 200 simulated examinees), modified 1-parameter models were most effective in estimating…
Descriptors: Ability, Achievement Tests, Comparative Analysis, Computer Simulation
