| Age (i) | Age (j) | Mean Difference | Significance (p) |
| 18 - 19 | 20 - 21 | 1.273 | 0.549 |
| 22 - 23 | 1.719 | 0.307 | |
| 24 and older | 3.637* | 0.024* | |
| 20 - 21 | 18 - 19 | −1.273 | 0.549 |
| 22 - 23 | 0.445 | 0.886 | |
| 24 and older | 2.364 | 0.093 | |
| 22 - 23 | 18 - 19 | −1.719 | 0.307 |
| 20 - 21 | −0.445 | 0.886 | |
| 24 and older | 1.919 | 0.255 |