Descriptor
| Achievement Tests | 2 |
| Mathematical Models | 2 |
| Item Analysis | 1 |
| Multiple Choice Tests | 1 |
| Probability | 1 |
| Technical Reports | 1 |
| Test Format | 1 |
| Test Interpretation | 1 |
| Test Items | 1 |
| Test Reliability | 1 |
Source
| Educational and Psychological… | 2 |
Author
| Wilcox, Rand R. | 2 |
Publication Type
| Journal Articles | 2 |
| Reports - Research | 2 |
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedWilcox, Rand R. – Educational and Psychological Measurement, 1982
Results in the engineering literature on "k out of n system reliability" can be used to characterize tests based on estimates of the probability of correctly determining whether the examinee knows the correct response. In particular, the minimum number of distractors required for multiple-choice tests can be empirically determined.…
Descriptors: Achievement Tests, Mathematical Models, Multiple Choice Tests, Test Format
Peer reviewedWilcox, Rand R. – Educational and Psychological Measurement, 1979
Wilcox has described three probability models which characterize a single test item in terms of a population of examinees (ED 156 718). This note indicates indicates that similar models can be derived which characterize a single examinee in terms of an item domain. A numerical illustration is given. (Author/JKS)
Descriptors: Achievement Tests, Item Analysis, Mathematical Models, Probability
