Descriptor
| Transformations (Mathematics) | 2 |
| Analysis of Variance | 1 |
| Correlation | 1 |
| Equations (Mathematics) | 1 |
| Error of Measurement | 1 |
| Graphs | 1 |
| Groups | 1 |
| Mathematical Models | 1 |
| Scores | 1 |
Author
| Huck, Schuyler W. | 2 |
| Sutton, Cary O. | 1 |
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| Journal Articles | 1 |
| Reports - Evaluative | 1 |
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Peer reviewedHuck, Schuyler W.; Sutton, Cary O. – Educational and Psychological Measurement, 1975
Extended Lubin's discussion of ordinal and disordinal interactions by introducing the concept of dual-ordinal. This concept was considered important since a transformation cannot bring about additivity unless the interaction is dual-ordinal in nature. A method is presented for determining whether or not an interaction is dual-ordinal. (Author/BJG)
Descriptors: Analysis of Variance, Graphs, Transformations (Mathematics)
Peer reviewedHuck, Schuyler W. – Educational and Psychological Measurement, 1992
Three factors that increase score variability yet can be associated with an increase, a decrease, or no change in Pearson's correlation coefficient (r) are discussed (restriction of range, errors of measurement, and linear transformations of data). The connection between changes in variability and r depends on how changes occur. (SLD)
Descriptors: Correlation, Equations (Mathematics), Error of Measurement, Groups
