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Construct Validity of Dichotomous and Polychotomous Choice Contingent Valuation Questions

ASU Author/Contributor (non-ASU co-authors, if there are any, appear on document)
John Whitehead Ph.D., Professor & Department Chair (Creator)
Institution
Appalachian State University (ASU )
Web Site: http://www.library.appstate.edu/

Abstract: In this note we conduct construct validity tests for dichotomous choice (DC) and polychotomous choice (PC) contingent valuation questions. Contrary to previous results, we find that DC and PC estimates of willingness to pay are theoretically valid, convergent valid, and similar in terms of statistical precision. Similar to previous results, PC respondents are less sensitive to information than DC respondents. We conclude that DC and PC valuation questions are construct valid for this study. Sequential PC valuation questions could be used in studies where obtaining information about the certainty or intensity of respondent preferences would be useful.

Additional Information

Publication
Whitehead, John C., Glenn C. Blomquist, Richard C. Ready, and Ju-Chin Huang (1998) Construct Validity of Dichotomous and Polychotomous Choice Contingent Valuation Questions, Environmental and Resource Economics, 11(1): 107-116. Published by Springer (ISSN: 09246460). DOI: 10.1023/A:1008231430184
Language: English
Date: 1998