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Descriptive statistics: pretest, the immediate and delayed posttest scores
| Test | N | Mean | Std. deviation | Std. error | 95% confidence interval for mean | |
|---|---|---|---|---|---|---|
| Lower bound | Upper bound | |||||
| Pretest | 36 | 14.19 | 1.650 | .266 | 12.45 | 17.03 |
| Immediate Posttest | 36 | 25.11 | 1.514 | .273 | 22.98 | 27.11 |
| Delayed Posttest | 36 | 24.65 | 1.559 | .329 | 22.09 | 27.81 |
