I want to design stated-preference experiments.
I have 3 modes of transportation:
- Bus
- Taxi
- Personal car
and two attributes for each mode:
- Travel time
- Travel cost
Each mode has the attribute levels as follows:
| | Bus | Taxi | Personal car |
| Travel time | 20, 25, 30 | 10, 15, 20 | 5, 10, 15 |
| Travel cost | Free, $1.25 | $3.00, $4.00 | $5.00, $6.00 |
But I cannot find the option to fix my modes for each choice set. What I mean is that I want to show all three modes in each choice experiment, like:
Q1. Which mode would you choose?
| | Bus | Taxi | Personal car |
| Travel time | 20 | 10 | 5 |
| Travel cost | Free | $4.00 | $6.00 |
Q2. Which mode would you choose?
| | Bus | Taxi | Personal car |
| Travel time | 20 | 15 | 5 |
| Travel cost | $1.25 | $3.00 | $5.00 |
Q3. Q4. ...
Is there anyone can help me design this kind of experiment?
Thank you very much in advance.