|
| mean | Standard deviation | Standard error mean | 95% confidence interval of the difference | t | df | Sigma (2-tailed) | |
| Lower | Upper | |||||||
| Pre-test - post-test | 3.91379 | 4.05352 | 0.53225 | −4.97961 | −2.84797 | −7.353 | 57 | 0.000 |