choice-metrics.com

Hi,

thanks again. I took some time and learn to use Apollo. Based on the results I have updated the syntax. Could you have a final look at it, please?
Apollo results:

Estimates:
Estimate s.e. t.rat.(0) Rob.s.e. Rob.t.rat.(0)
asc_app1 1.73396 0.28513 6.0813 0.34055 5.0916
asc_app2 1.60174 0.28983 ...

Thank you. Unfortunately, I am not familiar with any of that software I will just start learning to use them. I gathered priors for attributes using SPSS which is unable to give estimates for the alternatives. However, I used now Stata and I was able to estimate coefficients of alt 1 and 2 (the opt ...

Thank you very much.
While gathering parameter estimates was clear to me, I don't understand how can I estimate prior for a constant, either for alt 1 or 2, or the neither option?

Best wishes,
Arista

Dear Michiel,

I fitted MNL to get the priors from the pilot study, for a Bayesian D efficient design, and this is the syntax I wish to run in Ngene. For the pilot (see in one of our messages above), I used app[0] for alt1 and app for alt2. For this syntax, I took the constants for alt 1 and 2 out ...

Thanks very much. I managed to conduct a pilot study with 49 participants that yielded 468 observations.

Best wishes,
Arista

Hi Michiel,

thank you very much for your response. It was very useful.
I read more around the dummy coding in the manual and updated the code. I also realised that I might be able to use the direction of priors based on my professional experience.

May I kindly ask you to have another look at the ...

Dear all

I am a PhD student and I am about to conduct a DCE in digital health. I am looking to find out how to present digital health products in the best possible way to increase their uptake and I would very much appreciate your input on my work.

I have 5 attributes, 2 with 4 levels and 3 with 3 ...