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| Control Groups | 1 |
| Evaluation Methods | 1 |
| Experimental Groups | 1 |
| Models | 1 |
| Program Evaluation | 1 |
| Research Methodology | 1 |
| Statistical Bias | 1 |
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| Barnow, Burt S. | 1 |
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| Reports - General | 1 |
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Download full textBarnow, Burt S.; And Others – 1980
Selectivity bias arises in program evaluation when the treatment or control status of the subjects is related to unmeasured characteristics that themselves are related to the program outcome under study. This situation has the potential to lead to an incorrect estimation of the treatment effect when assignment to treatment and control groups is…
Descriptors: Control Groups, Evaluation Methods, Experimental Groups, Models
