Comparison of groups – gain in knowledge (post- minus pre-test scores)
| Control group (traditional lecture) | Experimental group (role playing) | |
|---|---|---|
| Mean | 1.012 | 1.463 |
| Variance | 1.198 | 1.956 |
| Observations | 51 | 30 |
| Hypothesized mean difference | 0 | |
| df | 50 | |
| t Stat | −1.516 | |
| P(T⩽t) one-tail | 0.068 | |
| t critical one-tail | 1.676 |
| Control group (traditional lecture) | Experimental group (role playing) | |
|---|---|---|
| Mean | 1.012 | 1.463 |
| Variance | 1.198 | 1.956 |
| Observations | 51 | 30 |
| Hypothesized mean difference | 0 | |
| df | 50 | |
| −1.516 | ||
| 0.068 | ||
| 1.676 |
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