Table 3 Psychometric properties of scales assessing perceived rules and accessibility of vegetables and soft drinks (n = 440)

Vegetables

Mean

SD

CITC^a

α^b

ICC^c

Total score, accessibility – dinner (range: 1–5)

4.02

0.81

0.76

0.51

..we usually have vegetables for dinner every day

4.24

0.97

0.52

.. we vary the types of vegetables served for dinner during a week

3.97

1.04

0.64

.. we vary how the vegetables are prepared for dinner (raw, cooked etc.) during a week

3.82

1.13

0.55

.. there are usually vegtetables that I like available

4.09

1.10

0.50

Total score, rules (range: 1–5)

4.47

0.86

0.79

0.51

.. I can eat vegetables whenever I want

4.44

0.98

0.66

.. I can eat as many vegetables I want to

4.49

0.91

0.66

Soft drinks

Mean

SD

CITC

α

ICC

Total score, accessibility – dinner (range: 0–5)

2.40

1.18

0.70

0.62

At home..

.. there are usually soft drinks available

2.63

1.63

0.56

.. we usually have soft drinks for dinner at week days

1.30

1.03

0.50

.. we usually have soft drinks for dinner at weekend days

3.32

1.72

0.57

Total score, rules (range: 0–5)

3.95

1.23

0.87

0.44

.. we have rules for when I can drink soft drinks

3.87

1.57

0.74

.. we have rules for how much soft drinks I can drink

3.57

1.57

0.65

.. I can drink soft drinks whenever I want

4.14

1.38

0.75

.. I can drink as much soft drinks as I want to

4.22

1.32

0.74