Descriptor
| Academic Ability | 1 |
| Guessing (Tests) | 1 |
| Item Analysis | 1 |
| Latent Trait Theory | 1 |
| Models | 1 |
| Multiple Choice Tests | 1 |
| Response Style (Tests) | 1 |
| Statistical Analysis | 1 |
| Test Validity | 1 |
| Testing Problems | 1 |
| True Scores | 1 |
| More ▼ | |
Source
| Psychometrika | 1 |
Author
| Lord, Frederic M. | 1 |
Publication Type
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedLord, Frederic M. – Psychometrika, 1974
Omitted items cannot properly be treated as wrong when estimating ability and item parameters. A convenient method for utilizing the information provided by omissions is presented. Theoretical and empirical justifications are presented for the estimates obtained by the new method. (Author)
Descriptors: Academic Ability, Guessing (Tests), Item Analysis, Latent Trait Theory
