Calculate the Cronbach's Alpha for below data from a pilot study (if possible to use SmartPLS4 software)

Variable 1: awareness of consequences

calculate the Cronbach's Alpha (variable 1: awareness of consequences)

Ques 1: I am aware that plastic consumption directly impacts human health

Ques 2: I understand that indirect negative effects that oil extraction and industrial production of plastic have on human health.

Ques 3: I believe that microplastic in the environment can cause serious health problems for humans.

Ques 4: I think that reducing plastic consumption can significantly improve human health. Ques 5: I am aware of the actions I can take to reduce plastic consumption, such as using sustainable alternatives to plastic bags.

Ques 6: I feel that the information available to get public about plastics and health is sufficient and clear.

Ques 7:I support the idea that government and policies should play a strong role in supporting the public to reduce plastic consumption.

Que 1 Que 2 Que 3 Que 4 Que 5 Que 6 Que 7

1 agree agree agree neutral agree disagree agree

2 agree neutral agree neutral agree neutral agree

3 agree neutral agree neutral agree neutral agree

4 strongly agree neutral agree strongly agree agree neutral agree

5 strongly agree neutral neutral strongly agree strongly agree neutral agree

6 strongly agree neutral neutral strongly agree strongly agree disagree agree

7 strongly agree strongly agree strongly agree strongly agree strongly agree disagree agree

8 strongly agree strongly agree strongly agree agree strongly agree disagree agree

9 agree strongly agree strongly agree agree agree disagree agree

10 neutral strongly agree strongly agree agree strongly agree disagree strongly agree

11 neutral strongly agree strongly agree agree strongly agree agree strongly agree

12 neutral agree agree agree agree agree strongly agree

13 neutral agree agree agree agree agree strongly agree

14 neutral agree agree agree agree agree agree

15 disagree disagree disagree disagree agree disagree agree

16 agree agree neutral agree agree disagree agree

17 agree agree neutral agree strongly agree disagree agree

18 agree agree agree strongly disagree strongly agree disagree strongly agree

19 disagree disagree disagree disagree strongly agree disagree strongly agree

20 neutral strongly agree agree strongly agree strongly agree neutral strongly agree

21 disagree disagree disagree disagree neutral neutral neutral

22 disagree disagree disagree disagree neutral neutral neutral

23 agree agree strongly agree strongly agree neutral neutral agree

24 agree agree strongly agree strongly agree neutral neutral agree

25 agree agree strongly agree strongly agree neutral neutral agree

26 agree agree strongly agree strongly agree agree neutral agree

27 agree strongly agree strongly agree strongly agree agree disagree strongly agree

28 agree strongly agree agree strongly agree agree disagree strongly agree

29 agree strongly agree agree strongly agree agree disagree strongly agree

30 agree strongly agree agree strongly agree agree disagree neutral

31 agree strongly agree agree strongly agree agree disagree neutral

32 agree strongly agree agree agree agree agree agree

33 agree agree agree agree neutral agree agree

34 strongly agree agree agree agree neutral agree agree

35 strongly agree agree agree agree neutral agree agree

36 strongly agree agree agree agree strongly agree agree agree

37 neutral agree strongly agree agree strongly agree agree agree

38 neutral agree strongly agree agree strongly agree neutral neutral

39 agree agree strongly agree agree strongly agree agree neutral

40 agree agree agree agree strongly agree agree neutral

Variable 2: Personal norm

Ques 1: I feel a personal obligation to reduce my use of plastic in daily life.

Ques 2: I feel morally compelled to recycle as much as I can.

Ques 3: Reducing my carbon footprint is a personal responsibility that I take seriously.

Ques 4: I feel a personal duty to buy eco-friendly products even if they are more expensive.

Ques 5: It is a personal norm for me to educate others about the importance of protecting the environment.

Ques 6: I believe it is my personal duty to support organizations and initiatives that promote environmental sustainability.

Ques 7: I make a conscious effort to reduce my consumption of single-use plastic items

Que 1 Que 2 Que 3 Que 4 Que 5 Que 6 Que 7

1 agree neutral agree strongly agree disagree agree strongly agree

2 agree agree agree strongly agree disagree agree strongly agree

3 agree agree agree strongly agree disagree agree agree

4 agree agree strongly agree strongly agree strongly disagree agree agree

5 strongly agree strongly agree strongly agree strongly agree neutral agree agree

6 strongly agree strongly agree strongly agree agree neutral agree agree

7 agree agree agree agree strongly disagree neutral agree

8 agree agree agree agree strongly disagree neutral agree

9 strongly agree strongly agree strongly agree agree neutral neutral agree

10 strongly agree strongly agree agree disagree neutral neutral agree

11 agree agree agree disagree neutral strongly agree strongly agree

12 agree agree agree disagree strongly disagree strongly agree strongly agree

13 strongly agree strongly agree agree disagree strongly disagree strongly agree strongly agree

14 strongly agree strongly agree agree disagree agree strongly agree strongly agree

15 strongly agree strongly agree neutral neutral agree neutral strongly agree

16 strongly agree strongly agree neutral neutral agree neutral strongly agree

17 agree agree agree neutral agree neutral strongly agree

18 agree agree agree neutral agree neutral agree

19 agree agree agree agree neutral neutral agree

20 neutral neutral agree agree neutral neutral strongly agree

21 neutral agree strongly agree neutral neutral agree strongly agree

22 neutral agree strongly agree neutral neutral agree strongly agree

23 neutral agree strongly agree neutral neutral strongly agree agree

24strongly agree neutral strongly agree neutral agree strongly agree agree

25 strongly agree neutral strongly agree strongly disagree agree strongly agree strongly agree

26 strongly agree neutral strongly agree strongly disagree agree agree agree

27 strongly agree neutral agree strongly disagree agree agree agree

28 neutral neutral agree strongly disagree disagree agree agree

29 neutral neutral strongly agree strongly disagree disagree agree agree

30 agree agree agree strongly disagree disagree agree agree

31 agree agree agree neutral disagree agree agree

32 agree agree agree neutral disagree strongly agree agree

33 neutral neutral agree neutral agree strongly agree agree

34 agree agree agree neutral agree agree neutral

35 agree agree strongly agree agree agree agree neutral

36 neutral agree strongly agree agree neutral strongly agree neutral

37 neutral agree strongly agree strongly disagree neutral strongly agree neutral

38 strongly agree strongly agree agree strongly disagree agree strongly agree neutral

39 strongly agree strongly agree agree strongly agree agree strongly agree agree

40 strongly agree strongly agree agree strongly agree agree strongly agree agree

Variable 3: Attitude

Ques 1: I believe that using reusable bags for shopping is a good practice for the environment.

Ques 2: I feel that bringing a reusable bag for shopping is a convenient option for me.

Ques 3: I think that using reusable bags for shopping can significantly reduce plastic waste.

Ques 4: I feel proud when I use reusable bags instead of plastic bags for my shopping needs.

Ques 5: I am motivated to use reusable bags for shopping because it aligns with my values of environmental conservation.

Ques 6: I believe that the inconvenience of remembering to bring reusable bags for shopping is worth the environmental benefits.

Ques 7: I would recommend others to use reusable bags for shopping due to the positive environmental impact.

Que 1 Que 2 Que 3 Que 4 Que 5 Que 6 Que 7

1 strongly agree neutral strongly agree strongly agree neutral agree neutral

2 strongly agree neutral strongly agree strongly agree neutral agree neutral

3 agree neutral strongly agree strongly agree neutral agree neutral

4 agree disagree strongly agree agree disagree agree disagree

5 agree disagree strongly agree agree disagree agree disagree

6 agree disagree strongly agree agree disagree agree agree

7 agree disagree agree agree agree agree agree

8 strongly agree disagree agree agree agree agree agree

9 strongly agree agree agree agree agree agree neutral

10 strongly agree agree agree agree agree agree neutral

11 strongly agree agree neutral agree agree agree neutral

12 strongly agree agree neutral agree agree agree neutral

13 neutral agree agree agree agree neutral neutral

14 neutral agree agree neutral agree neutral agree

15 neutral neutral agree neutral agree strongly agree agree

16 neutral neutral agree neutral agree strongly agree agree

17 neutral neutral agree neutral agree neutral agree

18 agree neutral agree strongly agree agree neutral agree

19 agree neutral agree strongly agree neutral strongly agree neutral

20 agree disagree agree strongly agree neutral strongly agree strongly agree

21 strongly agree disagree strongly agree strongly agree neutral strongly agree strongly agree

22 strongly agree disagree strongly agree strongly agree neutral strongly agree strongly agree

23 strongly agree disagree agree strongly agree neutral strongly agree strongly agree

24 strongly agree strongly agree agree strongly agree neutral agree strongly agree

25 strongly agree strongly agree agree strongly agree neutral agree strongly agree

26 strongly agree strongly agree agree strongly agree neutral agree agree

27 agree strongly agree agree strongly agree strongly agree agree agree

28 agree neutral agree agree strongly agree strongly agree agree

29 agree neutral agree agree strongly agree strongly agree agree

30 agree neutral agree agree strongly agree strongly agree agree

31 agree neutral agree strongly agree neutral neutral disagree

32 agree neutral agree strongly agree neutral neutral disagree

33 agree neutral strongly agree strongly agree neutral strongly agree strongly agree

34 agree neutral strongly agree strongly agree neutral strongly agree strongly agree

35 neutral neutral strongly agree agree disagree strongly agree strongly agree

36 neutral agree strongly agree agree disagree strongly agree strongly agree

37 neutral agree strongly agree neutral agree strongly agree neutral

38 agree agree strongly agree neutral agree agree neutral

39 agree agree strongly agree agree agree agree neutral

40 agree agree agree agree agree agree agree

Variable 4: Subjective norm

Ques 1: My family and friends believe that using eco-friendly shopping bags is important for the environment.

Ques 2: I feel that people in my community judge me positively when I use eco-friendly shopping bags.

Ques 3: It is a common belief among my friends that using eco-friendly shopping bags is a responsible choice.

Ques 4: Most people who are important to me would think less of me if I did not use eco-friendly shopping bags.

Ques 5: In my social circle, it is expected that we use eco-friendly shopping bags for our purchases.

Ques 6: I am often reminded by my peers about the importance of using eco-friendly shopping bags.

Ques 7: Celebrities and influencers that I follow promote the use of eco-friendly shopping bags.

Que 1 Que 2 Que 3 Que 4 Que 5 Que 6 Que 7

1 neutral agree neutral strongly agree strongly agree disagree agree

2 neutral agree neutral agree strongly agree neutral agree

3 agree agree agree agree agree neutral agree

4 agree agree agree agree agree neutral agree

5 agree agree agree agree agree neutral agree

6 agree neutral agree agree agree neutral agree

7 agree neutral agree agree agree neutral agree

8 agree agree agree strongly agree agree agree agree

9 agree agree neutral strongly agree agree agree neutral

10 agree agree neutral strongly agree agree agree neutral

11 agree agree neutral strongly agree agree agree neutral

12 agree neutral neutral strongly agree agree agree neutral

13 agree neutral neutral strongly agree agree neutral neutral

14 agree neutral neutral agree agree neutral agree

15 agree neutral neutral agree agree neutral agree

16 agree strongly agree agree agree strongly agree strongly agree agree

17 agree strongly agree agree agree strongly agree strongly agree agree

18 agree strongly agree agree agree strongly agree strongly agree agree

19 neutral strongly agree agree neutral strongly agree strongly agree agree

20 neutral strongly agree agree neutral strongly agree strongly agree agree

21 neutral agree agree neutral neutral strongly agree strongly agree

22 neutral agree agree neutral neutral agree strongly agree

23 neutral agree agree agree neutral agree strongly agree

24 strongly agree agree agree agree neutral agree strongly agree

25 strongly agree agree agree agree neutral agree strongly agree

26 strongly agree agree agree agree agree agree strongly agree

27 agree agree agree agree agree neutral strongly agree

28 agree agree agree agree agree neutral strongly agree

29 agree agree strongly agree agree agree neutral strongly agree

30 agree agree strongly agree agree agree neutral strongly agree

31 neutral neutral neutral neutral strongly agree disagree agree

32 neutral neutral strongly agree neutral strongly agree disagree agree

33 neutral neutral strongly agree strongly agree strongly agree disagree agree

34 strongly agree strongly agree strongly agree strongly agree neutral agree agree

35 strongly agree strongly agree strongly agree strongly agree neutral agree neutral

36 strongly agree strongly agree agree agree agree agree neutral

37 strongly agree strongly agree agree agree agree agree neutral

38 agree agree agree agree agree agree strongly agree

39 agree agree agree agree agree neutral strongly agree

40 agree agree agree agree agree neutral strongly agree

Variable 5: Perceived behavioural control

Ques 1: I am confident that I can choose plastic-free alternatives when purchasing beverages.

Ques 2: I feel that it is within my power to contribute to reducing plastic pollution by the drink choices I make.

Ques 3: I feel in control of my decisions when it comes to selecting drinks that do not come in plastic packaging.

Ques 4: The availability of plastic-free drink options influences my ability to reduce plastic use. Ques 5: My current lifestyle allows me to make choices that avoid the use of plastic bottles.

Ques 6: I have the necessary information to make informed choices about plastic-free drink options.

Ques 7: Financial constraints do not prevent me from choosing drinks that are not packaged in plastic.

Que 1 Que 2 Que 3 Que 4 Que 5 Que 6 Que 7

1 strongly agree agree strongly agree strongly agree strongly agree strongly agree strongly agree

2 strongly agree agree strongly agree strongly agree strongly agree strongly agree strongly agree

3 strongly agree agree strongly agree strongly agree strongly agree strongly agree strongly agree

4 neutral agree strongly agree strongly agree strongly agree strongly agree strongly agree

5 neutral agree strongly agree strongly agree strongly agree strongly agree neutral

6 agree agree agree agree strongly agree strongly agree neutral

7 agree agree agree agree strongly agree strongly agree neutral

8 agree strongly agree agree agree strongly agree strongly agree neutral

9 agree strongly agree agree agree agree agree neutral

10 agree strongly agree agree agree agree agree neutral

11 agree strongly agree agree agree agree agree agree

12 agree strongly agree agree agree agree agree agree

13 agree strongly agree agree agree agree agree agree

14 agree strongly agree neutral agree agree agree agree

15 agree strongly agree neutral agree agree agree agree

16 agree strongly agree neutral agree agree agree disagree

17 agree strongly agree neutral agree agree strongly agree disagree

18 agree strongly agree neutral agree agree strongly agree disagree

19 agree agree agree agree agree strongly agree disagree

20 strongly agree agree agree agree agree strongly agree disagree

21 strongly agree agree agree agree agree strongly agree agree

22 strongly agree agree agree agree agree strongly agree agree

23 strongly agree agree agree agree agree strongly agree agree

24 strongly agree agree agree agree agree agree agree

25 strongly agree agree agree agree agree agree agree

26 strongly agree agree strongly agree strongly agree agree agree agree

27 strongly agree agree strongly agree strongly agree agree agree agree

28 strongly agree agree strongly agree strongly agree agree agree disagree

29 strongly agree agree strongly agree strongly agree agree strongly agree disagree

30 strongly agree agree strongly agree strongly agree agree strongly agree disagree

31 strongly agree agree strongly agree strongly agree agree strongly agree disagree

32 strongly agree agree strongly agree strongly agree agree strongly agree disagree

33 strongly agree strongly agree strongly agree strongly agree agree agree disagree

34 strongly agree strongly agree strongly agree strongly agree agree agree disagree

35 strongly agree strongly agree agree strongly agree agree agree neutral

36 agree strongly agree agree strongly agree agree agree neutral

37 agree strongly agree agree strongly agree strongly agree agree neutral

38 agree strongly agree agree agree strongly agree agree neutral

39 agree strongly agree agree agree strongly agree agree agree

40 agree strongly agree agree agree strongly agree agree agree