Variable | No. | Question | Response options |
---|---|---|---|
Age | 1 | How old are you? | Natural numbers without zero [Numerical input] |
Gender | 2 | Gender? | male, female, not specified [Single Choice] |
Mother tongue | 3 | Mother tongue? | Free text input field |
Digital device usage | 4 | Which devices do you regularly use privately? | Mobile phone, smartphone, laptop, stationary computer, none of these [Multiple Choice] |
Computer skills | 5 | I consider my computer skills as very good | 4-point Likert (Strongly agree – strongly disagree) [Single Choice] |
Visual impairment | 6 | Do you need a visual aid (e.g. glasses, contact lenses)? | Yes/No [Single Choice] |
7 | Are you suffering from any of the listed eye diseases? | Selection of vision-limiting eye diseases (Colour blindness, Macular degeneration, Glaucoma, Cataract, Diabetic retinopathy, None) [Multiple Choice] | |
Motor limitations | 8 | Do you have any of the listed motor limitations? | Selection of fine motor skills impairing diseases (o Parkinson syndrome, Disease of the rheumatic form, Amputations of fingers, Numbness of the fingers, Other, None) [Multiple Choice] |