Descriptor
| Error of Measurement | 1 |
| Estimation (Mathematics) | 1 |
| Item Analysis | 1 |
| Latent Trait Theory | 1 |
| Maximum Likelihood Statistics | 1 |
| Test Reliability | 1 |
| True Scores | 1 |
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| Psychometrika | 1 |
Author
| Lord, Frederic M. | 1 |
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| Journal Articles | 1 |
| Reports - Research | 1 |
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Peer reviewedLord, Frederic M. – Psychometrika, 1983
Given known item parameters for a test, unbiased estimators are derived for an examinee's ability parameter, his or her proportion correct true score for the variances of these parameters and for the parallel forms reliability of the maximum likelihood estimator of the ability parameter. (Author/JKS)
Descriptors: Error of Measurement, Estimation (Mathematics), Item Analysis, Latent Trait Theory
