Table 1.
Reliability of the scales measuring the determinants of children's fruit and vegetable intake in the PRO GREENS project
| Cronbach's α | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Constructs with item(s) | Response categories† | BG | FI | DE | GR | IS | NL | NO | PT | SI | SE |
| Availability of fruits | 0·49 | 0·44 | 0·46 | 0·51 | 0·41 | 0·22 | 0·50 | 0·45 | 0·36 | 0·45 | |
| Are there usually different kinds of fruit available in your home? | (i) Never; (ii) seldom; (iii) sometimes; | ||||||||||
| Is there usually a fruit bowl (or similar) in the kitchen or living room? | (iv) yes, most days; (v) yes, always | ||||||||||
| Facilitation to eat fruits | – | – | – | – | – | – | – | – | – | – | |
| Does your mother or father usually cut up fruits for you? | |||||||||||
| Liking for fruits | 0·67 | 0·68 | 0·73 | 0·53 | 0·73 | 0·74 | 0·62 | 0·63 | 0·72 | 0·68 | |
| I like to eat fruits every day | (i) I fully disagree; (ii) I disagree somewhat; | ||||||||||
| Fruits taste good | (iii) neither agree nor disagree; (iv) I agree somewhat; (v) I fully agree | ||||||||||
| Self-efficacy to eat fruits | 0·33 | 0·47 | 0·38 | 0·40 | 0·47 | 0·46 | 0·19 | 0·18 | 0·27 | 0·54 | |
| It is difficult for me to eat fruits every day | |||||||||||
| If I decide to eat fruits every day, I can do it | |||||||||||
| Knowledge of the F&V recommendations | 0·69 | 0·72 | 0·73 | 0·69 | 0·78 | 0·42 | 0·77 | 0·61 | 0·75 | 0·61 | |
| How many fruits do you think you should eat to have a healthy diet? | (i) No fruit/vegetables; (ii) 1–3 portions/week; | ||||||||||
| How many vegetables do you think you should eat to have a healthy diet? | (iii) 4–6 portions/week; (iv) 1 portion/d; (v) 2 portions/d; (vi) 3 portions/d; (vii) 4 portions/d; (viii) 5 or more portions/d‡ | ||||||||||
| Availability of vegetables | 0·51 | 0·63 | 0·55 | 0·50 | 0·56 | 0·36 | 0·54 | 0·57 | 0·50 | 0·50 | |
| Are there usually different kinds of vegetables available in your home? | (i) Never; (ii) seldom; (iii) sometimes; | ||||||||||
| In your home, are there usually vegetables served with dinner (or lunch)? | (iv) yes, most days; (v) yes, always | ||||||||||
| Facilitation to eat vegetables | – | – | – | – | – | – | – | – | – | – | |
| Does your mother or father usually cut up vegetables for you? | |||||||||||
| Liking for vegetables | 0·81 | 0·84 | 0·86 | 0·78 | 0·84 | 0·83 | 0·79 | 0·83 | 0·87 | 0·85 | |
| I like to eat vegetables every day | (i) I fully disagree; (ii) I disagree somewhat; | ||||||||||
| Vegetables taste good | (iii) neither agree nor disagree; (iv) I agree somewhat; (v) I fully agree | ||||||||||
| Self-efficacy to eat vegetables | 0·32 | 0·58 | 0·53 | 0·46 | 0·56 | 0·53 | 0·28 | 0·22 | 0·36 | 0·54 | |
| It is difficult for me to eat vegetables every day | |||||||||||
| If I decide to eat vegetables every day, I can do it | |||||||||||
BG, Bulgaria; FI, Finland; DE, Germany; GR, Greece; IS, Iceland; NL, The Netherlands; NO, Norway; PT, Portugal; SI, Slovenia; SE, Sweden; F&V, fruit and vegetable.
†The response categories were the same for the questions measuring availability and facilitation or liking and self-efficacy.
‡For the analyses the answers were recoded to range from 0 to 5 to indicate the amount of fruits and vegetables that the child thinks one should eat per day to have a healthy diet.