| Period | N | Mini | Maxi | Mean | Std. error Mean | Std. Deviation | Variance |
PBT | Pre | 6 | 19.7 | 37.3 | 28.533 | 2.3800 | 5.8298 | 33.987 |
Post | 6 | 29.5 | 45.2 | 37.083 | 2.5565 | 6.2621 | 39.214 |