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| Equations (Mathematics) | 1 |
| Meta Analysis | 1 |
| Pretests Posttests | 1 |
| Psychomotor Skills | 1 |
| Research Methodology | 1 |
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| Becker, Betsy Jane | 1 |
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| Reports - Research | 1 |
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Becker, Betsy Jane – 1987
A new approach is presented for the meta-analysis of data from pre-test/post-test designs. With this approach, data from studies using different designs may be compared directly and studies without control groups need not be omitted. The approach is based on a "standardized mean-change" measure, computed for each sample within a study,…
Descriptors: Equations (Mathematics), Meta Analysis, Pretests Posttests, Psychomotor Skills
