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| Correlation | 3 |
| Statistical Distributions | 3 |
| Scores | 2 |
| Cluster Analysis | 1 |
| Reliability | 1 |
| Statistical Studies | 1 |
| Test Interpretation | 1 |
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| Journal of Educational… | 3 |
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| Journal Articles | 3 |
| Reports - Research | 3 |
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Peer reviewedLoh, Wei-yin – Journal of Educational Statistics, 1987
This paper derives a formula for the square of the correlation coefficient in terms of its maximum possible value under rotation of the axes. An application of the formula to quick visual estimation of the correlation coefficient is provided. (TJH)
Descriptors: Cluster Analysis, Correlation, Statistical Distributions
Peer reviewedSpencer, Bruce D. – Journal of Educational Statistics, 1983
Test statistics based on the assumption that test scores are interval rather than ordinal quality data are questioned. New statistical techniques which do not rely on this assumption are presented. (JKS)
Descriptors: Correlation, Scores, Statistical Distributions, Test Interpretation
The Descriptive Use of Absolute Differences between Pairs of Scores with a Common Mean and Variance.
Peer reviewedMcGraw, Kenneth O.; Wong, S. P. – Journal of Educational Statistics, 1994
Similarity between pairs of scores with a common mean and variance can be expressed in terms of the absolute differences between them. The distribution of such absolute differences between pairs of normally distributed scores with a common mean and variance is discussed, with procedures for calculating moments and areas within this distribution.…
Descriptors: Correlation, Reliability, Scores, Statistical Distributions
