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Paired sample t-test for the experimental group between the pre- and posttest.
| Paired differences | ||||||||
|---|---|---|---|---|---|---|---|---|
| Mean | Std. deviation | Std. error mean | 95% Confidence interval of the mean | t | dt | Sig. (2-tailed) | ||
| Lower | Upper | |||||||
| Pre—post | −14.60000 | 2.26148 | .58391 | −15.85237 | −13.34763 | −25.004 | 14 | .000 |
