Background Questionnaire

1. General Information

Sex:	[ ] male [ ] female
Age:	____________
Occupation:	____________

2. Sight Impairment

1. Do you use a sight aid when working on the computer?

[ ] none [ ] glasses [ ] contact lenses [ ] other __________

2. Do you have any form of colour blindness?

[ ] no [ ] yes, __________

3. Education

1. Highest Educational Level Attained:

[ ] vocational training [ ] secondary school [ ] university degree [ ] doctorate

2. If you are studying or have studied, please describe your main area of study:

___________________________________

4. Personal Computer Use

1. Which kind of personal computer do you use most?

[ ] None [ ] Microsoft Windows [ ] Apple Macintosh [ ] Unix [ ] other __________

2. How long have you been using a personal computer?

_____ years

3. How many hours per week do you use a personal computer?

_____ hours

5. Tablet Use

1. Which kind of tablet do you use most?

[ ] None [ ] Android [ ] Apple (iOS) [ ] other __________

2. How long have you been using a tablet?

_____ years

3. How many hours per week do you use a tablet?

_____ hours

6. Web Use

1. How many hours per week do you use the World Wide Web?

________ hours

2. Which kind of device do you use most often to surf the web?

[ ] desktop computer [ ] laptop [ ] tablet
[ ] smartphone [ ] other __________

3. What kind of internet connection do you normally use?

[ ] xDSL [ ] cable modem [ ] fibre optic
[ ] 3G mobile internet [ ] LTE mobile internet [ ] other __________

4. Which web browser do you normally use?

[ ] Chrome [ ] Firefox [ ] Safari
[ ] Microsoft IE (Edge) [ ] Opera [ ] other __________

5. Do you have experience as a web site administrator?

If yes: _____ years

7. Domain-Specific Questions

1. Have you used a file manager to browse folders and documents on a computer?

[ ] Windows Explorer [ ] Mac Finder [ ] other __________

2. Have you seen or explored the Tree of Life (tree of biological species)?

[ ] yes [ ] no

3. Have you browsed product hierarchies online?

[ ] Amazon [ ] Ebay [ ] Geizhals [ ] other __________

4. Have you seen or used a Hyperbolic Tree Browser?

[ ] yes [ ] no

8. Experience with Usability Tests

1. Have you participated in a usability study before?

[ ] as a test user [ ] as part of the test team

If yes, what kind of study was it?

[ ] Thinking Aloud [ ] Formal Experiment [ ] other __________