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| Research Methodology | 2 |
| Depression (Psychology) | 1 |
| Discriminant Analysis | 1 |
| Equations (Mathematics) | 1 |
| Neuropsychology | 1 |
| Statistical Distributions | 1 |
| Test Theory | 1 |
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| Educational and Psychological… | 2 |
Author
| Yarnold, Paul R. | 2 |
| Soltysik, Robert C. | 1 |
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| Journal Articles | 2 |
| Reports - Evaluative | 1 |
| Reports - Research | 1 |
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Peer reviewedYarnold, Paul R. – Educational and Psychological Measurement, 1988
Classical test theory methods are derived to allow statistical evaluation of all KT(KT - 1)/2 unique, non-trivial difference scores that occur by comparing one or more variables (K) at two or more testings (T) for a single individual (or object of measurement). Future research needs are discussed. (Author)
Descriptors: Equations (Mathematics), Research Methodology, Test Theory
Peer reviewedSoltysik, Robert C.; Yarnold, Paul R. – Educational and Psychological Measurement, 1994
This article describes the theoretical distribution of optima arising from two-category univariable optimal discriminant analysis (UniODA) of continuous random data for a one-tailed (directional) hypothesis. Directional UniODA is illustrated through an investigation of the relationship between depression and brain monoamine turnover. (SLD)
Descriptors: Depression (Psychology), Discriminant Analysis, Neuropsychology, Research Methodology
