| Paired differences | t | df | Sig. (2-tailed) | |||||
Mean | Std. deviation | Std. error mean | 95% confidence interval of the difference | ||||||
Lower | Upper | ||||||||
Pair 1 | Post-test | −5.45000 | 3.06301 | 0.48430 | −6.42960 | −4.47040 | −11.253 | 39 | 0.000 |