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. 2020 Aug 11;9(8):1097. doi: 10.3390/foods9081097

Table 8.

Structure of the questionnaire after the consolidation of the factors with the non-accepted internal reliability.

Items Text Cronbach’s α
INF Informational content 0.839
inf.q1 Provides nutritional information
inf.q2 Provides information about the production techniques of the product
inf.q3 Contains quality markings
inf.q4 Includes markings indicating adherence to environmental practices
inf.q5 Includes items that help make the product traceable
inf.q6 Has traceability codes (barcode, Quick Response QR-code)
inf.q7 Has markings to show if it is flammable or contains other dangerous materials
inf.q8 Suggests methods of consumption of the product
inf.q10 Indicates the country of origin of primary and auxiliary materials
inf.q11 Indicates if a product is protected origin name
OPE1 Protection and recognition of the product 0.757
oper.q2 Protects the product from humidity
oper.q8 Is resistant to cooking/baking/roasting conditions etc.
oper.q10 Increases the lifespan of the product
oper.q13 Does not expose the product to solar radiation
oper.q5 Allows visual contact with part of the product
oper.q12 The shape of the packaging describes the contents of the product
OPE2 “Smart” functionality 0.622
oper.q9 Shows the temperature of the product at any one time
oper.q11 Is “smart”
PHY1 Geometric characteristics 0.689
phys.q1 Has a size marginally larger than the size of the product
phys.q2 Has a volume marginally larger than the volume of the product
phys.q3 Is based on known geometric shapes
PHY2 Environmentally friendly 0.772
phys.q10 Is made of materials that are environmentally friendly
phys.q11 Is made of materials that can be reused
phys.q14 Is made of recyclable materials
PHY3 Durability 0.650
phys.q5 Is waterproof
phys.q6 Tolerates mechanical vibrations
phys.q13 Does not allow odors to leak out
VIS Coloration 0.566
vis.q1 Has bright colors
vis.q2 Has only one color
vis.q3 Has white color (background)
vis.q4 Has blank spaces