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D-efficiency

Good afternoon,

I am conducting some CBC designs. As far as I know, the D-efficiency enables to quantify the gain or loss of efficiency if designs are identical in terms of attributes and levels, being possible to change the sample, the number of tasks and concepts by task and even being possible to introduce prohibitions.
Then, how can I quantify the gain or loss of efficiency of two designs which are different in number of attributes and/or levels?

Thank you
asked Feb 25, 2016 by Emilio (140 points)

1 Answer

0 votes
Emilio,

The D-efficiency produced by the Advanced Test cannot be compared directly for designs with different numbers of attributes and levels .
answered Feb 25, 2016 by Keith Chrzan Platinum Sawtooth Software, Inc. (64,975 points)
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