Search found 5 matches

by jgrant8
Thu May 15, 2025 8:46 pm
Forum: General questions about choice experiments
Topic: Sample size for blocking
Replies: 4
Views: 29220

Re: Sample size for blocking

Okay thanks very much.

Best,
Jane
by jgrant8
Sun May 11, 2025 3:21 am
Forum: General questions about choice experiments
Topic: Sample size for blocking
Replies: 4
Views: 29220

Re: Sample size for blocking

Thank you very much for your response with these considerations.

I realised my initial question wasn't written very clearly. From other DCEs in this setting and a pre-test, we have found that 12 choice tasks is the upper limit of what we would want to present to each participant. So with this in ...
by jgrant8
Tue May 06, 2025 6:31 pm
Forum: General questions about choice experiments
Topic: Sample size for blocking
Replies: 4
Views: 29220

Sample size for blocking

Hello,

I am conducting an unlabelled DCE with health workers in Ghana that has 2 alternatives and a current policy opt-out, 5 attributes (3 at 2 levels, 2 at 3 levels), and 12 choice tasks. We are including all health workers in the district where the intervention is taking place, which will be ...
by jgrant8
Fri May 02, 2025 12:11 am
Forum: Support for Ngene Desktop (v1.x)
Topic: Correlation issues?
Replies: 2
Views: 28545

Re: Correlation issues?

Thank you very much for your response! I have dummy coded MAL now as you suggested. And thank you for catching my error that I did not specify in the snytax that alt1 and alt2 are unlabelled.

Best,
Jane
by jgrant8
Tue Apr 29, 2025 5:54 pm
Forum: Support for Ngene Desktop (v1.x)
Topic: Correlation issues?
Replies: 2
Views: 28545

Correlation issues?

Hi everyone,

I am conducting an unlabelled DCE with 5 attributes with two alternatives plus an opt-out (a current policy option). Two of the attributes have 3 levels, and three of the attributes have 2 levels. My syntax is as follows:

Design
;alts = alt1, alt2, optout
;rows = 12
;eff=(mnl,d ...