Table 4.

Healthful Eating Beliefs Scale rationale for investigation and modes of responses.

Category	Rationale for Investigation	Area of Enquiry	Standardized Questions and Response Options	Source
Healthful Eating Beliefs Scale	To better understand healthy eating beliefs among participants and determine if they change over time.	Behavioral intention	“I intend to eat a healthful diet each day in the next 2 months,” 5-pt Likert “I will try to eat a healthful diet each day in the next 2 months,” 5-pt Likert “I plan to eat a healthful diet each day in the next 2 months,” 5-pt Likert	[68]
		Perceived behavioral control	“I have the self-discipline to eat a healthful diet” 5-pt Likert “I have the ability to eat a healthful diet” 5-pt Likert “Me eating a healthful diet would be easy/difficult” 5-pt Likert “Whether I do or do not follow the recommendations for my diet is entirely up to me” 5-pt Likert	[71]
		Subjective norm	“People important to me think I should not/I should eat a healthful diet” 5-pt Likert “Other people expect me to follow the daily recommendations for diet” 5-pt Likert “People important to me want me to eat a healthful diet” 5-pt Likert “Other people with diabetes follow the daily recommendations for diet” 5-pt Likert	[71,72]
		Attitudes towards self-care	“Following the recommendations for my diet would be harmful/beneficial” 5-pt Likert “It would be worthless/valuable for me to follow the daily recommendations for my diet” 5-pt Likert “Following daily recommendations for diet is unnecessary/necessary” 5-pt Likert Following daily recommendations for diet is unpleasant/pleasant” 5-pt Likert	[72]