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Hi Michiel,

Thanks as ever for your reply and for checking in Excel.

I will double check with my colleagues regarding the priors, as there has been some changing around of the levels earlier on in the project. This will probably be the issue as I can't see another issue with the code.

If this ...

Hi there,

I'm helping to design an unlabelled DCE related to job opportunities for post docs in the UK. As shown in the code below this message, we are using a d-efficient design.

There are seven attributes, two with four levels and five with three levels. We have included an opt out option. We ...

Hi everyone,

I'm working on a DCE in the area of health economics, specifically in relation to the provision of eye services. I haven't designed a DCE for a little while, so am a little rusty!

A little bit of background about the DCE. We have a budget for approximately 700 online respondents. We ...

Hi Michiel,

Thank you as ever for your swift and thorough reply.

I think the fact there are two different ways of including the ASC was confusing me - thanks for clearing that up!

I will include ;con and stick to 2000 Sobol draws.

Best wishes,

Tom

Hi there,

I am working on an unlabelled DCE study, which has previously been discussed on another thread in relation to its constraints (http://choice-metrics.com/forum/viewtopic.php?f=2&t=909)

We are investigating the general public's preferences for different types of public health intervention ...

Hi Michiel,

Thank you for your extremely useful comments and suggestions.

- I was trying to work out a way of simplifying the constraints but couldn't work it out... that's a lot more concise

- I got a bit confused about whether to include both dummy coding and small near-zero priors or not ...

Hi there,

I am currently working on a DCE design and was hoping I could get some feedback on where I’ve got to so far. This is only the second DCE I’ve worked on so I’m a relative beginner!

Background Details of the DCE

We are investigating the general public's preferences for different types ...

Hi Michiel and Andrew,

Thank you both for getting back to me.

I checked which version of Ngene I was using, and it was version 1.1.1, so this is what will be causing the problem!

I get in touch with my departmental IT service and see if I can get upgraded to the most recent version of the ...

Hi Michiel,

Thank you for confirming that the blocking has no impact on the efficiency, orthogonality etc - thinking about this a bit more this makes sense.

It's odd that the NGD is retaining the blocking for you and not for me. I'm not using a design optimised for a panel mixed logit, and the ...

Hi there,

Apologies if this is a stupid question, this is my first project using Ngene.

Essentially, I've generated the design I want and saved it as a NGD file. However, every time I reopen it the blocking has changed - i.e. Choice Situation 1 was in Block 1 but is now in Block 2 etc...

I'm just ...