Table 1.

Reliability and validity of the scale measuring factors influencing healthy eating behavior.

Factors	Example	Item	CVI	Cronbach’s α	ICC
Intrapersonal Level
Preference for healthy food a	I prefer fruit juice to fresh fruit	7	1	0.742	0.850 **
Healthy eating attitude	I think that it’s nice to have a healthy diet	2	1	0.865	0.692 **
Healthy eating self-efficacy	I’m sure that I can maintain a healthy diet	2	1	0.882	0.634 **
Emotional eating	When I am sad, I eat and vent my emotions	4	1	0.892	0.762 **
Mindless eating	I often do other things while eating	1	1	-	0.667 **
Healthy eating difficulty	I think it takes time to maintain a healthy diet	3	1	0.759	0.584 **
Interpersonal Level
Social eating	I often dine with others	2	1	0.782	0.723 **
Peer social support	My friends encourage me to adopt a healthy diet	2	1	0.862	0.394 **
Family social support	My family members encourage me to adopt a healthy diet	2	1	0.944	0.703 **
Environmental Level
Availability of healthy foods	It is easy to buy vegetables where I live or at school	3	1	0.782	0.695 **
Availability of unhealthy foods	It is easy to buy fast food where I live or at school	3	1	0.882	0.465 **
Macrosystem Level
Exposure to food-related advertising	I often watch food-related advertisements or shows	2	1	0.832	0.651 **
Exposure to healthy eating campaigns	I am often exposed to messages regarding a healthy diet	1	1	-	0.434 **

Note: ^a Seven items within this factor were reverse scored. CVI = content validity index; ICC = intraclass correlation coefficient. ** p < 0.01.