Table 2 Descriptive statistics of the evaluation measures of the influence agents and their peers
| Â | T1 | T2 | |||
|---|---|---|---|---|---|
M (SD) | Range | % (n) | M (SD) | Range | |
General experiences with the training | |||||
 Enjoyment of the training | 3.66 (.55) | 1–4 | 84% (31) |  |  |
 Duration of the training | 3.09 (.59) | 1–5 | 84% (27) |  |  |
 Perceived autonomy-support | 3.54 (.38) | 1–4 | 97% (30) |  |  |
Motivating influence agents to drink more water themselves | |||||
 Intrinsic motivation | 4.48 (1.71) | 1–6 |  | 4.93 (1.20)b | 1.5–6 |
 Water consumption | 2.82 (1.97) | 0–7 |  | 3.51 (2.02)b | 0–7 |
 SSBs consumption | .75 (.73) | 0–7 |  | .57 (.80) | 0–3.6 |
Supporting the influence agents in motivating their peers | |||||
 Intrinsic motivation | 4.61 (1.33) | 1–6 |  | 4.43 (1.48) | 1–6 |
 Perceived social support | 1.91 (.92) | 1–6 |  | 2.16 (1.13)b | 1–6 |
 Descriptive norms | 3.64 (.94) | 1–6 |  | 3.66 (1.18) | 1–6 |
 Injunctive norms | 3.73 (1.63) | 1–6 |  | 3.33 (1.80) | 1–6 |
 Drinking water themselves | 4.10 (1.18) | 1–6 | 95% (20) |  |  |
 Talking about water at school or home | 3.05 (.97) | 1–6 | 76% (16) |  |  |
 Talking about water in the social media platform | 2.05 (1.32) | 1–6 | 27% (6) |  |  |
 Forwarding short videos about water in the social media platform | 1.95 (1.02) | 1–6 | 24% (5) |  |  |