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| Possible Score Range | Sophomore Mean (SD) | Senior Mean (SD) | p Values | |
| Total attitude | 1–5 | 2.61 (± 0.45) | 2.72 (± 0.41) | — |
| Total knowledge | 0–22 | 13.38 (± 2.74) | 14.98 (± 2.60) | .006 |
| Benefits subscale | 0–4 | 3.30 (± 0.88) | 3.40 (± 0.86) | — |
| Physiology subscale | 0–6 | 4.65 (± 1.00) | 4.80 (± 0.84) | — |
| Management subscale | 0–12 | 5.42 (± 2.12) | 6.78 (± 1.97) | .003 |
