TABLE 3.
F values and p-values of fixed effects and interactions of the GLM performed to the understanding of nutritional information and the ANOVA models used for healthfulness perception and purchase intention.
| Effect | df | Understanding of nutritional information | Healthfulness perception | Purchase intention |
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| F (p-value) | F (p-value) | F (p-value) | ||
| FoPNL | 3 | 205.66 (<0.001) | 88.46 (<0.001) | 70.00 (<0.001) |
| Food category | 2 | 4.50 (0.011) | 7.48 (0.001) | 116.00 (<0.001) |
| Type of product | 1 | 73.31 (<0.001) | 327.85 (<0.001) | 99.25 (<0.001) |
| Nutrition claims | 1 | 24.90 (<0.001) | 57.82 (<0.001) | 31.21 (<0.001) |
| FoPNL*food category | 6 | 3.61 (0.001) | 1.62 (0.138) | 3.79 (0.001) |
| FoPNL*type of product | 3 | 1.30 (0.271) | 15.92 (<0.001) | 10.04 (<0.001) |
| FoPNL*nutrition claims | 3 | 0.50 (0.681) | 0.40 (0.753) | 0.71 (0.545) |
| Food category*type of product | 2 | 4.54 (0.011) | 2.93 (0.053) | 39.70 (<0.001) |
| Food category*nutrition claim | 2 | 0.07 (0.936) | 0.99 (0.371) | 3.57 (0.028) |
| Type of product*nutrition claims | 1 | 0.70 (0.403) | 2.02 (0.155) | 0.08 (0.780) |
| FoPNL*food category*type of product | 6 | 0.50 (0.806) | 0.84 (0.536) | 2.66 (0.014) |
| FoPNL*food category*nutrition claims | 6 | 0.90 (0.495) | 1.53 (0.165) | 0.70 (0.648) |
| FoPNL*type of product*nutrition claims | 3 | 0.14 (0.934) | 2.05 (0.105) | 0.41 (0.742) |
| Food category*Type of product*nutrition claims | 2 | 0.45 (0.635) | 0.45 (0.638) | 0.24 (0.782) |
| FoPNL*food category*type of product*nutrition claims | 6 | 0.70 (0.651) | 0.48 (0.823) | 0.16 (0.988) |
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| ID Variance | Estimate (standard error); p-value | |||
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| 3.393 (0.254); p < 0.001 | 0.320612 (0.17628); p < 0.001 | 0.342764 (019059); p < 0.001 | ||
df, degree of freedom. Bold indicates statistically significant findings at p < 0.05 level. Models adjusted for the questions about interest in health with p < 0.05 and random effects on individuals.