Table 5 Constructs and item statistics (n = 208)

Awareness for environment and climate change

[55,56,57]

6

I feel worried about the environmental conditions under which our children and grandchildren probably have to live.

If we carry on like before, we are heading towards an environmental catastrophe.

In my estimation the environmental problem is greatly exaggerated by media and politicians. (recoded)

For the sake of the environment, we should all be prepared to limit our current standard of living.

I personally feel that it is important to think about the environment in my everyday driving behavior.

I am prepared to change my mobility behavior in order to protect the environment.

0.85

Perceived responsibility for environmental problems

[58]

2

My car use contributes to environmental problems.

The currently occurring environmental problems are mainly caused by others. (recoded)

0.46

Technical self-efficacy

[59]

4

I can solve quite a few of the technical problems I am confronted with on my own.

I really enjoy solving technical problems.

Because I got along well with previous technical problems, I optimistically look forward to future technical problems.

I feel so helpless when interacting with technical devices that I rather keep my hands off them.

0.90

Personal innovativeness (n = 207)

[60]

4

I regularly look out for new products.

I often search for information about new technologies and products that could be of interest to me.

Most often, I am the first of my friends to test new products.

I find it interesting to test new products.

0.88

Attitude towards driving (n = 207)

[61]

7

For me, the car has instrumental functions only. (recoded)

I only have a car to travel from A to B. (recoded)

I love driving.

A car provides status and prestige.

I feel free and independent if I drive.

I like to drive just for the fun.

My car shows who and what I am.

0.82

Self-assessed knowledge about alternative fuels

[35]

2

I feel well informed about alternative fuels.

I feel well informed about the production of alternative fuels.

0.90

Acceptance of alternative fuels

[35]

4

I do not want to use alternative fuels for driving a car. (recoded)

I think the use of alternative fuels in road transport is a bad idea. (recoded)

I am willing to refuel with alternative fuels.

I would prefer alternative fuels to conventional fuels for driving.

0.75