Descriptor
| Algorithms | 2 |
| Computer Software | 2 |
| Estimation (Mathematics) | 2 |
| Latent Trait Theory | 2 |
| Maximum Likelihood Statistics | 2 |
| Programing | 2 |
| Comparative Analysis | 1 |
| Equations (Mathematics) | 1 |
| Item Analysis | 1 |
| Item Banks | 1 |
| Test Construction | 1 |
| More ▼ | |
Source
| Journal of Educational… | 1 |
Publication Type
| Reports - Research | 2 |
| Computer Programs | 1 |
| Journal Articles | 1 |
| Speeches/Meeting Papers | 1 |
Education Level
Audience
| Researchers | 1 |
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedHarwell, Michael R.; And Others – Journal of Educational Statistics, 1988
The Bock and Aitkin Marginal Maximum Likelihood/EM (MML/EM) approach to item parameter estimation is an alternative to the classical joint maximum likelihood procedure of item response theory. This paper provides the essential mathematical details of a MML/EM solution and shows its use in obtaining consistent item parameter estimates. (TJH)
Descriptors: Algorithms, Computer Software, Equations (Mathematics), Estimation (Mathematics)
Skaggs, Gary; Stevenson, Jose – 1986
This study assesses the accuracy of ASCAL, a microcomputer-based program for estimating item parameters for the three-parameter logistic model in item response theory. Item responses are generated from a three-parameter model, and item parameter estimates from ASCAL are compared to the generating item parameters and to estimates produced by…
Descriptors: Algorithms, Comparative Analysis, Computer Software, Estimation (Mathematics)
