Does anyone has a java script for making use of the Becker‐DeGroot‐Marschak (BDM) Mechanism? | XM Community
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Does anyone has a java script for making use of the Becker‐DeGroot‐Marschak (BDM) Mechanism?

  • 19 July 2019
  • 5 replies
  • 39 views
D
Hi there,
as part of my research project I need to estimate Willingness to pay and Willingness to accept. A common method is the Becker‐DeGroot‐Marschak (BDM) Mechanim. Unfortunately, I could not figure out how to implement it in qualtrics. Has anyone a javascript or a related hint or experience in using this Mechanism?

Many Thanks

Dafink
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Best answer by JenCX 19 July 2019, 17:13

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5 replies

JenCX
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Userlevel 7
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Which method of BDM are you wanting to use? A random number or sequentially increasing numbers (either random or not)?
D
Hi JenCX,
thanks for getting back.
I want to use a random number approach.
E.g. [0...10] and than compare the random one with the number entered by the subject.
Does that answer your questions?
JenCX
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Userlevel 7
Badge +11
Gotcha! Yes, you can do this with Random Number Generator and then compare the entered number to your random number with Branch Logic.
D
Many thanks. Good hint tho!
Can I round the above generated random number ...sth like 4.45 (should reflect a utility value in terms of money.
JenCX
Rank
Userlevel 7
Badge +11
@Dafink Yes, you can use Math Operations to round it.

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