Table 2.
Moderated regression analysis examining the interaction effects between intervention group, perceived descriptive norm related to water consumption (PDNW) and perceived injunctive norm related to water consumption (PINW) on water consumption over time 1.
| Water Consumption T2 (n = 342) | ||||||
|---|---|---|---|---|---|---|
| Variable | β | SE β | t | p | 95% CI | |
| Lower | Upper | |||||
| Constant | 6.96 | 1.08 | 6.45 | 0.00 | 4.84 | 9.08 |
| Intervention (predictor) | 0.12 | 0.18 | 0.67 | 0.50 | −0.23 | 0.47 |
| PDNW T1 (moderator) | 0.03 | 0.09 | 0.34 | 0.74 | −0.15 | 0.22 |
| PINW T1 (moderator) | 0.06 | 0.09 | 0.75 | 0.45 | −0.11 | 0.24 |
| Intervention X PDNW (interaction term) | −0.13 | 0.18 | −0.70 | 0.49 | −0.48 | 0.23 |
| Intervention X PINW (interaction term) | 0.38 | 0.17 | 2.20 | 0.03 | 0.04 | 0.71 |
| Water consumption T1 (covariate) | 1.01 | 0.09 | 10.81 | 0.00 | 0.83 | 1.19 |
| Thirst T1 (covariate) | 0.01 | 0.02 | 0.45 | 0.65 | −0.04 | 0.06 |
| Thirst T2 (covariate) | 0.05 | 0.02 | 2.34 | 0.02 | 0.01 | 0.10 |
| Sex (covariate) | −0.07 | 0.19 | −0.37 | 0.71 | −0.43 | 0.30 |
| Age (covariate) | −0.24 | 0.09 | −2.62 | 0.01 | −0.42 | −0.06 |
| Overall model: F(10, 331) = 17.17, p = 0.00, R2 = 0.35 | ||||||
1 T1 = pre-intervention and T2 = post-intervention.