Descriptor
| Analysis of Covariance | 1 |
| Change | 1 |
| Computer Simulation | 1 |
| Correlation | 1 |
| Error of Measurement | 1 |
| Measurement Techniques | 1 |
| Pretests Posttests | 1 |
| Statistical Studies | 1 |
Author
| Jamieson, John | 1 |
Publication Type
| Journal Articles | 1 |
| Reports - Evaluative | 1 |
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Peer reviewedJamieson, John – Educational and Psychological Measurement, 1995
Computer simulations indicate that the correlation between baseline and change, by itself, does not invalidate the use of gain scores to measure change, but when the negative correlation is accompanied by decrease in variance from pretest to posttest, covariance is a superior measure of change. (SLD)
Descriptors: Analysis of Covariance, Change, Computer Simulation, Correlation
