Search found 4 matches

by julia
Fri Sep 02, 2011 2:14 am
Forum: Support for Ngene Desktop (v1.x)
Topic: Effects coding
Replies: 6
Views: 24798

Re: Effects coding

Thank you!
I was just not aware of this sensitivity. In the meantime, I estimated the priors from my pretest data and S-estimates are now reasonable.
by julia
Wed Aug 03, 2011 1:28 am
Forum: Support for Ngene Desktop (v1.x)
Topic: Effects coding
Replies: 6
Views: 24798

Re: Effects coding / Required sample sizes

Dear Michiel,

first of all, thank you for your quick replies to my questions. They were very helpful. The nested design now gives results, also when using effects coding.

However, I met another problem. When playing around with different designs, I realized that when using effects coding for the ...
by julia
Fri Jul 08, 2011 1:54 am
Forum: Support for Ngene Desktop (v1.x)
Topic: Design within design / Scenarios
Replies: 1
Views: 7205

Design within design / Scenarios

Hi,

in my latest post (see topic "effects coding") I already mentioned that I would like to generate an experimental design that includes 5 different contexts that I would like to treat as an attribute which is kept constant across alternatives within each choice set. I plan to generate 30 choice ...
by julia
Tue Jul 05, 2011 4:34 am
Forum: Support for Ngene Desktop (v1.x)
Topic: Effects coding
Replies: 6
Views: 24798

Re: Effects coding

Hi,

I'm trying to run an efficient design with effects coded attributes. However, it doesn't work and I can't find the error myself.
Ngene Syntax check says "An attribute has the wrong number of levels for dummy or effects coding. 'a' "

I want to run an efficient design with three alternatives ...