| Pre-RDIF Mean (SD) | Post-RDIF Mean (SD) | Change score | P-value |
---|---|---|---|---|
Overall | 2.42 (0.98) | 2.74 (1.09) | 0.32 |  < 0.05 |
Sex | ||||
 Female | 2.51 (0.92) | 2.80 (1.14) | 0.29 |  < 0.05 |
 Male | 2.33 (1.04) | 2.68 (1.05) | 0.35 |  < 0.05 |
Academic year | ||||
 First | 2.59 (1.32) | 3.00 (1.11) | 0.41 |  < 0.05 |
 Second | 2.40 (1.53) | 2.72 (1.16) | 0.32 | NS |
 Third | 2.44 (1.24) | 2.78 (1.07) | 0.34 | NS |
 Fourth | 2.27 (1.50) | 2.27 (1.03) | 0 | NS |
 Fifth | 2.27 (1.35) | 2.62 (0.85) | 0.35 | NS |
 Sixth | 1.83 (1.03) | 1.67 (0.82) | -0.16 | NS |