Duration | Group 1 | Group 2 | Group 3 | Group 4 |
Range | 1 - 8 | 1 - 9 | 1 - 9 | 1 - 8 |
Mean ± SD | 3.63 ± 0.96 | 3.61 ± 1.33 | 3.92 ± 1.61 | 3.42 ± 1.01 |
F test | 0.879 | |||
P value | 0.453 |