Table A1.

Investigation on individuals’ pro-environmental psychology.

Statement	Strongly Disagree	Disagree	Neutral	Agree	Strongly Agree
I am willing to bring a reusable bag for shopping.	1	2	3	4	5
I plan to bring a reusable bag for shopping.	1	2	3	4	5
I will try to bring a reusable bag for shopping in the future.	1	2	3	4	5
Plastic bags pollute the environment.	1	2	3	4	5
Plastic bags endanger animals and sea life.	1	2	3	4	5
Plastic bag waste releases toxic fumes into the air.	1	2	3	4	5
Pollutants from plastic bags increase the risk of cancer.	1	2	3	4	5
I think we are not doing enough to save scarce natural resources from being used up.	1	2	3	4	5
I feel angry and frustrated when I think about the harm being done to plant and animal life by pollution.	1	2	3	4	5
I think the government should devote more money toward supporting conservation and environmental programs.	1	2	3	4	5
I think the government should devote more money toward supporting conservation and environmental programs.	1	2	3	4	5
Consumers should be interested in the environmental consequences of the products they purchase.	1	2	3	4	5
Consumers should pay higher prices for products which pollute the environment.	1	2	3	4	5
Manufacturers should be required to use recycled materials in their operations whenever possible.	1	2	3	4	5
Commercial advertising should be required to mention the environmental disadvantages of products.	1	2	3	4	5
Public schools should require all students to take a course dealing with the environment and conservation problems.	1	2	3	4	5
Environmental issues are overrated and do not concern me (Reversed).	1	2	3	4	5