Search found 7 matches

by Nonka
Mon Jan 16, 2017 6:53 pm
Forum: Support for Ngene Desktop (v1.x)
Topic: Efficient design with require property and interaction effec
Replies: 11
Views: 26320

Re: Efficient design with require property and interaction e

Thank you very much again!
Then I will not go for more test responses and use close to zero priors.

Best wishes,
Nonka
by Nonka
Sat Jan 14, 2017 1:07 am
Forum: Support for Ngene Desktop (v1.x)
Topic: Efficient design with require property and interaction effec
Replies: 11
Views: 26320

Re: Efficient design with require property and interaction e

Hallo again,

I now have the results of an mnl estimation based on a pilot study with 50 respondents. I got insignificant estimates for some of the effects coded parameters, which do not give me a clear ranking of the parameters.

Moreover, depending on whether I include the interaction effects in ...
by Nonka
Thu Dec 15, 2016 9:41 am
Forum: Support for Ngene Desktop (v1.x)
Topic: Efficient design with require property and interaction effec
Replies: 11
Views: 26320

Re: Efficient design with require property and interaction e

Dear Andrew,
Dear Michiel,

sorry for bothering again. I included a constant for the no choice alternative, but now I have encountered another problem with the design. I always get one scenario with the same levels of the effects coded attributes in alt2 as in the fixed alternative only with higher ...
by Nonka
Tue Dec 13, 2016 8:20 pm
Forum: Support for Ngene Desktop (v1.x)
Topic: Efficient design with require property and interaction effec
Replies: 11
Views: 26320

Re: Efficient design with require property and interaction e

Thank you very much for your quick reply.
And thank you for having this forum. It is very valuable and helpful.
by Nonka
Mon Dec 12, 2016 11:51 pm
Forum: Support for Ngene Desktop (v1.x)
Topic: Efficient design with require property and interaction effec
Replies: 11
Views: 26320

Re: Efficient design with require property and interaction e

Dear Andrew,

thank you very much for your helpful comments and suggestions.

I have tried to decrease the uncertainty in the prior levels and to insert some sort of ranking, as much as possible. In addition I will have to insert a no-choice alternative (forth alternative), since leaving it out ...
by Nonka
Sat Nov 26, 2016 1:15 am
Forum: Support for Ngene Desktop (v1.x)
Topic: Efficient design with require property and interaction effec
Replies: 11
Views: 26320

Efficient design with require property and interaction effec

Dear Ngene team,

I am working on a design for a pretest with a status quo option and with 3 categorical attributes and one price attribute (4x3x3x6 levels). The status quo option does not vary across choice cards. It contains the base levels of the categorical attributes and a lowest price level ...