Table 4.
Moderated regression analysis examining the interaction effects between the intervention group, perceived descriptive norm related to water consumption (PDNW) and the perceived injunctive norm related to water consumption (PINW) on the behavioral intention to consume more water over time 1.
| Behavioral Intention to Consume More Water T2 (n = 342) | ||||||
|---|---|---|---|---|---|---|
| Variable | β | SE β | t | p | 95% CI | |
| Lower | Upper | |||||
| Constant | 1.97 | 0.45 | 4.42 | 0.00 | 1.09 | 2.84 |
| Intervention (predictor) | 0.05 | 0.06 | 0.80 | 0.42 | −0.07 | 0.17 |
| PDNW T1 (moderator) | 0.07 | 0.04 | 1.84 | 0.07 | −0.00 | 0.14 |
| PINW T1 (moderator) | 0.00 | 0.03 | 0.14 | 0.89 | −0.06 | 0.07 |
| Intervention X PDNW (interaction term) | −0.04 | 0.07 | −0.61 | 0.54 | −0.18 | 0.10 |
| Intervention X PINW (interaction term) | −0.04 | 0.07 | −0.54 | 0.59 | −0.18 | 0.10 |
| Behavioral intention to consume more water T1 (covariate) | 0.57 | 0.06 | 9.25 | 0.00 | 0.45 | 0.69 |
| Thirst T1 (covariate) | −0.00 | 0.01 | −0.60 | 0.55 | −0.02 | 0.01 |
| Thirst T2 (covariate) | 0.01 | 0.01 | 0.92 | 0.36 | −0.01 | 0.02 |
| Sex (covariate) | 0.16 | 0.07 | 2.37 | 0.02 | 0.03 | 0.29 |
| Age (covariate) | −0.06 | 0.03 | −2.06 | 0.04 | −0.13 | 0.00 |
| Overall model: F(10, 331) = 13.06, p = 0.00, R2 = 0.34 | ||||||
1 T1 = pre-intervention and T2 = post-intervention.