Table 1.

Relevant questionnaire items and references.

Item		Scale	References
Attributes of organic food	Organic food is healthier	7-point Likert scale	Seegebarth et al. (2016)
	Organic food is safe	7-point Likert scale	Seegebarth et al. (2016)
	Organic food is environmentally sustainable	7-point Likert scale	Mohd Suki (2015)
Labels	Label info (e.g. facts table, GMOa-free, 100% organic)	7-point Likert scale	Carlucci et al. (2017)
	Health claims (e.g. Organic foods are not necessarily completely chemical free, but the pesticide residues will be considerably lower than those found in produce manufactured with synthetic chemicals)	7-point Likert scale	Ghvanidze et al. (2016)
	Quality label (e.g. PDOb, PGIc)	7-point Likert scale	Lazzarini et al. (2016)
	Organic label	7-point Likert scale	Lazzarini et al. (2016)
	Environmental label (e.g. Ecolabel)	7-point Likert scale	Meyerding (2016)

^aGenetically Modified Organism (GMO).

^bProtected Designation of Origin (PDO).

^cProtected Geographical Indication (PGI).