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Greetings Forum,

I was wondering if I could get some direction on using monadic exposure vs experimental designs in discrete choice experiments.

Imagine a simple hypothetical discrete choice experiment where the researcher wants to test two different versions of a currently available product. E ...

Greetings Michiel,

Thank you very much for the reply.

Regards,

Richard

Greetings,

I created a simple design with 13 exercises/rows using the Federov algorithm that had a d-error of 0.22669. I then tried to create a design with the same number of rows from the same candidate search space using a genetic algorithm (in R). The resulting design had a d-error of 0.22433 ...

Hi All,

What is the best way to handle large numbers of attributes in discrete choice experiments?

Is it better to do a partial profile design or to do some two-step approach such as conducting an "initial study" using a partial profile design, then conduct a final study using the most important ...

Greetings,

Is it possible to combine attribute level frequency and logical cond constraints?

An example could be, for attribute 1 levels 1-4, attribute 2 level 1 appears 80% of the time and attribute 2 level 2 appears 20% of the time.

I did see that this post "Conditions and attribute level ...

Greetings,

With regard to Andrew's first question, how would one estimate a choice model from the "partial" attribute profile design? When setting up the design in, say, NLOGIT would one code attributes that are out of the choice set as -888? Essentially coding it as a "missing attribute" and ...

Greetings Michiel,

Perhaps what I am trying to achieve is a little unorthodox.

1. I am trying to create a fractional factorial orthogonal design for unlabeled alternatives with contextual attributes.

2. In my studies, the respondent makes a choice of an alternative conditional on the contextual ...

Greetings,

Is there a possible possible work-around to incorporate contextual (socio-economic) variables into fractional factorial designs?

I know this is possible with efficient designs, but I need to run fractional factorial designs because I either need no correlations within or across ...

Thank you very much for your reply!

Greetings,

I am not sure if this question is fair game on this forum (please kindly let me know if it is not), but since Ngene is an important part of Applied Choice Analysis 2nd ed., I will assume I can ask it.

After reading pg 290 in Applied Choice Analysis 2nd ed (and chapter 6), I am unsure ...