Table A1.

Survey questions

Variable
Environmental attitude
Trivedi et al. (2018) 
I am very concerned about the environment
I am willing to reduce my consumption to help the environment
I would contribute financially to help protect the environment
I have asked my family to recycle some of the things we use
Environmental awareness
Trivedi et al. (2018) 
I believe that humanity is seriously abusing the environment
I think that humans produce disastrous consequences in nature
I consider that the balance of nature is very delicate and easily upset
I think that one must live in harmony with nature in order to survive
Green purchasing behavior
Carrión and Arias-Bolzmann (2022) 
 
I buy organic products regularly
I buy organic products for my daily needs
I have bought organic products for the last few months.
I buy organic products, although there are conventional alternatives
Green advertising
Sun et al. (2020) 
I tend to focus on advertising messages that relate to the environment.
I think brands that use advertising messages about the environment are good
I pay attention to products that develop advertisements that relate to the environment
I find green advertising valuable in my opinion
Eco-labels
Riskos et al. (2021) and Nguyen (2022) 
I consider the eco-labels displayed on the product to be a good way to inform consumers
I believe that eco-labeled products meet reliable environmental quality standards
The presence of certified organic labels increases my credibility in a product
I believe that eco-labeled products are really committed to protecting the environment

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