Subscribe Bookmark RSS Feed

Choice Design

Micaela

New Contributor

Joined:

Jul 3, 2017

Hello everyone! I am trying to do a fractional factorial design for a choice experiment, with one constraint. Is anyone aware on how to do it? I have three factors, 2 with 3 levels and 1 with 2 levels: L1: A B and C; L2: F D and J; L3: Black and Red. When the last is Red, it does only combine with D, but not with F or with J, though it does with A B & C. Can anyone help?

6 REPLIES
louv

Staff

Joined:

Jun 23, 2011

Will this do it?

 

Screen Shot 2017-07-03 at 9.12.47 PM.png 

Micaela

New Contributor

Joined:

Jul 3, 2017

Hi!! Thank you for your answer!! It works in custom design, but I do not have the option within choice experiment. Also, what I would want is, following my example, that the combination X1=L2 with X3 to be excluded. Not X1=L1 or X1=L2, but X1=L2 with X3 (any of the levels). Any thoughts most welcome!

louv

Staff

Joined:

Jun 23, 2011

Can you generate the choice design without constraints and remove the combinations that can not be performed.

 

Micaela

New Contributor

Joined:

Jul 3, 2017

I have Access Denied to see the thread :S  

louv

Staff

Joined:

Jun 23, 2011

Sorry for my mistake on the bad link.

Micaela

New Contributor

Joined:

Jul 3, 2017

Indeed, but then it is not easy to build the choices.