Descriptor
Analysis of Covariance | 1 |
Comparative Analysis | 1 |
Control Groups | 1 |
Data Analysis | 1 |
Experimental Groups | 1 |
Mathematical Models | 1 |
Program Effectiveness | 1 |
Program Evaluation | 1 |
Statistical Analysis | 1 |
Statistical Bias | 1 |
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Journal of Educational… | 1 |
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Bryk, Anthony S.; Weisberg, Herbert I. – Journal of Educational Statistics, 1976
Focuses on the fact that an educational treatment typically involves an intervention in a growth process. By modelling this process, expected growth for various treatment groups under control conditions may be estimated. Actual growth can be compared with projected growth to estimate the value-added by the program. A simple model is developed. (RC)
Descriptors: Analysis of Covariance, Comparative Analysis, Control Groups, Data Analysis