Unadjusted means (SD) of coach reported outcomes
| ω | Intervention group | Control group | |||
| M (SD) | N | M (SD) | N | ||
| Doping moral disengagement (T0) | 0.78 | 1.40 (0.66) | 62 | 1.34 (0.49) | 68 |
| Doping moral disengagement (T1) | 0.90 | 1.27 (0.70) | 58 | 1.33 (0.64) | 64 |
| Doping moral disengagement (T2) | 0.75 | 1.20 (0.30) | 57 | 1.24 (0.42) | 49 |
| Doping attitudes (T0) | 0.80 | 1.29 (0.43) | 62 | 1.38 (0.68) | 68 |
| Doping attitudes (T1) | 0.76 | 1.18 (0.32) | 58 | 1.30 (0.49) | 64 |
| Doping attitudes (T2) | 0.70 | 1.18 (0.32) | 57 | 1.33 (0.45) | 49 |
| Efficacy to discuss doping issues (T0) | 0.98 | 75.13 (19.36) | 62 | 78.99 (15.30) | 68 |
| Efficacy to discuss doping issues (T1) | 0.99 | 85.17 (17.11) | 58 | 84.73 (11.32) | 64 |
| Efficacy to discuss doping issues (T2) | 0.99 | 87.81 (11.99) | 57 | 87.84 (10.93) | 49 |
| Efficacy to create antidoping culture (T0) | 0.99 | 81.63 (18.03) | 61 | 83.9 (15.77) | 68 |
| Efficacy to create antidoping culture (T1) | 0.99 | 90.17 (11.28) | 58 | 86.68 (11.13) | 64 |
| Efficacy to create antidoping culture (T2) | 0.99 | 91.02 (8.44) | 56 | 89.23 (10.51) | 49 |
| Encourage athletes to prevent inadvertent doping (T0) | 0.87 | 0.79 (1.49) | 62 | 1.24 (1.89) | 68 |
| Encourage athletes to prevent inadvertent doping (T1) | 0.82 | 2.94 (2.18) | 58 | 2.47 (2.09) | 64 |
| Encourage athletes to prevent inadvertent doping (T2) | 0.81 | 2.40 (2.01) | 57 | 2.96 (2.13) | 48 |
| Antidoping knowledge (T0) | – | 3.59 (1.43) | 62 | 3.74 (1.46) | 68 |
| Antidoping knowledge (T1) | – | 4.68 (1.25) | 58 | 5.02 (0.83) | 64 |
| Antidoping knowledge (T2) | – | 4.96 (0.98) | 57 | 5.15 (0.82) | 48 |
| Perceived effectiveness of need support (T0) | 0.76 | 5.79 (0.90) | 61 | 5.81 (1.08) | 68 |
| Perceived effectiveness of need support (T1) | 0.70 | 6.22 (0.76) | 58 | 5.86 (0.78) | 64 |
| Perceived effectiveness of need support (T2) | 0.85 | 6.21 (1.04) | 57 | 6.05 (0.90) | 49 |
| Perceived effectiveness of need thwarting (T0) | 0.73 | 2.39 (0.80) | 61 | 2.54 (1.11) | 68 |
| Perceived effectiveness of need thwarting (T1) | 0.87 | 1.88 (1.17) | 58 | 2.36 (1.12) | 64 |
| Perceived effectiveness of need thwarting (T2) | 0.89 | 2.02 (1.30) | 57 | 1.98 (0.99) | 49 |
ω, omega reliability coefficient; T0, Baseline; T1, 3 months (end of intervention); T2, 5 months from baseline.