 An experiment on simplifying conjoint analysis designs for measuring preferencesTara Maddala, Kathryn A. Phillips and F. Reed Johnson Health Economics, 2003, vol. 12, issue 12, 1035-1047 Abstract: In conjoint analysis (CA) studies, choosing between scenarios with multiple health attributes may be demanding for respondents. This study examined whether simplifying the choice task in CA designs, by using a design with more overlap of attribute levels, provides advantages over standard minimal‐overlap methods. Two experimental conditions, minimal and increased‐overlap discrete choice CA designs, were administered to 353 respondents as part of a larger HIV testing preference survey. In the minimal‐overlap survey, all six attribute levels were allowed to vary. In the increased‐overlap survey, an average of two attribute levels were the same between each set of scenarios. We hypothesized that the increased‐overlap design would reduce cognitive burden, while minimally impacting statistical efficiency. We did not find any significant improvement in consistency, willingness to trade, perceived difficulty, fatigue, or efficiency, although several results were in the expected direction. However, evidence suggested that there were differences in stated preferences. The results increase our understanding of how respondents answer CA questions and how to improve future surveys. Copyright © 2003 John Wiley & Sons, Ltd. Date: 2003 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:wly:hlthec:v:12:y:2003:i:12:p:1035-1047 Access Statistics for this article Health Economics is currently edited by Alan Maynard, John Hutton and Andrew Jones More articles in Health Economics from John Wiley & Sons, Ltd. |
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