Descriptor
| Error of Measurement | 1 |
| Mathematical Formulas | 1 |
| Prognostic Tests | 1 |
| Regression (Statistics) | 1 |
| Statistical Bias | 1 |
| Test Reliability | 1 |
| Theories | 1 |
Source
| New Directions for Testing… | 1 |
Author
| Roberts, A. O. H. | 1 |
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| Journal Articles | 1 |
| Reports - Research | 1 |
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Roberts, A. O. H. – New Directions for Testing and Measurement, 1980
When a test is made to separate a group into two distinct subgroups, as well as to provide an estimate of the mean performance of one subgroup (or both of them), such estimates will be biased due to the unreliability of the test. Suggestions for corrective procedures are presented. (RL)
Descriptors: Error of Measurement, Mathematical Formulas, Prognostic Tests, Regression (Statistics)
