Statistics | Pre-test | Post-test |
Valid | 40 | 40 |
Missing | 0 | 0 |
Mean | 11.9250 | 16.5000 |
Median | 12.0000 | 17.0000 |
Mode | 11.00 | 15.00a |
Std. deviation | 2.41138 | 2.24179 |
Variance | 5.815 | 5.026 |
Range | 12.00 | 9.00 |
Sum | 477.00 | 660.00 |