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Pierre-Alexandre Mahieu, Pere Riera and Raul Brey
''Testing the cognitive burden of two choice modeling valuation variants. The between and within sample approaches''
( 2010, Vol. 30 No.2 )
Scores are commonly used in environmental valuation exercises. The two main procedures when testing for score differences are the within sample and the between sample approaches. Their conclusions do not always coincide. With a case study involving scores on difficulty of responding to two choice modeling variants –contingent ranking and contingent grouping–, the paper shows the strength of the within sample approach when relying on the coherent arbitrariness principle. Results suggest that the grouping is significantly less difficult to complete than the ranking task. The validity of these results is enhanced by the fact that they are independent of the exercise order, which is tested by randomizing the sequence order in which respondents face the two methods.
Keywords: between sample test; choice modeling; cognitive burden; coherent arbitrariness; within sample test
JEL: Q5 - Environmental Economics: General
C8 - Data Collection and Data Estimation Methodology; Computer Programs: General
Manuscript Received : Apr 02 2010 Manuscript Accepted : May 16 2010

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