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z61m
2005 Dec 15
0
MNP - discrete choice experiment
...four levels
- every respondent has to answer 4 different choice sets (drawn randomly or
systematically from the full factorial)
- only the first choice is observed
The data frame ('example') would look like this (brand attribute is effect
coded):
resp y1 y2 y3 za1M za1B za2 zb1M zb1B zb2
zc1M zc1B zc2
A 1 0 0 1 0 50 0 1 50
-1 -1 50
A 1 0 0 1 0 50 0 1 100
-1 -1 100
A 1 0 0 1 0 50 0 1 150
-1 -1 150
A 0 1 0 1 0 200 0 1 50
-1 -1 200
B 0 0 1 1 0 100 0 1 100
-1 -1 50
...
Notation:
- resp respondent id
- y1, y2, y3 choice indicator for the three alternatives
- za1M and za1B effects coded var...