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Dear professor,

Thank you very much. Your answers are really helpful.

Dear professor,

I also have an SP experiment with a more complex design. The d error generated using efficient design coding is 1.1. Can this generated experiment be used for a trial study?

I appreciate you continuing to answer my questions. Thank you very much.

Thank you Professor. I have one last question.
In my scenario there is an attribute "Check-in luggage" with levels "yes" and "no". When the level is "no", the "Luggage check-in time" at the terminal is 0. The "Luggage check-in time" at the airport is also 0. "I don't know how to code this condition ...

So if I want to study uncertainty as this author does should I only consider orthogonal design? Efficient design might not be appropriate?

This author has use utility.
https://www.tandfonline.com/doi/full/10 ... 22.2088568

I have one more question. Before I conduct my trial study, what range of d-errors do I need to ensure that the experiments I generate are considered OK?

I appreciate your quick response. And I would like to ask a few more questions.

5. I do ask people about current house price in the survey. But everyone's house price is different . I think they know their house price in their mind. So there is no joint RP house price in the SP experiment. It only ...

I appreciate your quick response. And I would like to ask a few more questions.

2. In response to your second reply, I would like to ask if my attributes are travel time and the levels are 50 minutes, 60 minutes and 70 minutes. Should I then use [50, 60, 70] when writing code using efficient design ...

Dear Mr. Michiel Bliemer:

I have some questions on the coding of attributes and levels that I would like to ask.

1. Do I have to use Bayesian efficient design when using efficient design? I would like to know the process of a proper routine.
Can I empirically give utility values and ensure that ...