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| Achievement Gains | 1 |
| Least Squares Statistics | 1 |
| Mathematical Models | 1 |
| Pretests Posttests | 1 |
| Regression (Statistics) | 1 |
| Scores | 1 |
| Suppressor Variables | 1 |
| Testing Problems | 1 |
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| Glasnapp, Douglas R. | 1 |
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Peer reviewedGlasnapp, Douglas R. – Educational and Psychological Measurement, 1984
The concept of change is related to suppressor variable conditions in a least square regression model. The domain of conditions necessary for a weighted change score composite to emerge as an underlying construct is mapped and the information loss through arbitrary assignment of weights to a change composite is explored. (Author/BW)
Descriptors: Achievement Gains, Least Squares Statistics, Mathematical Models, Pretests Posttests
