Descriptor
| Correlation | 1 |
| Guessing (Tests) | 1 |
| Item Analysis | 1 |
| Simulation | 1 |
| Statistical Analysis | 1 |
| Statistical Bias | 1 |
| Statistical Significance | 1 |
Source
| Journal of Educational… | 1 |
Author
| Ashler, Daniel | 1 |
Publication Type
| Journal Articles | 1 |
| Reports - Research | 1 |
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Peer reviewedAshler, Daniel – Journal of Educational Statistics, 1979
The negative bias of biserial correlations in the presence of guessing is demonstrated by Monte Carlo studies, and another estimator is described that is free of such bias. The usual biserial-correlation assumptions and assumptions about guessing are discussed. Brogden's coefficient of selective efficiency and the triserial correlation are…
Descriptors: Correlation, Guessing (Tests), Item Analysis, Simulation
