Whitty Jennifer A, Lancsar Emily, De Abreu Lourenco Richard, Howard Kirsten, Stolk Elly A
Patient-Centred Research, Evidera, London, UK.
Norwich Medical School, The University of East Anglia, Norwich, UK.
Patient. 2024 May 14. doi: 10.1007/s40271-024-00696-5.
Choice-based preference elicitation methods such as the discrete choice experiment (DCE) present hypothetical choices to respondents, with an expectation that these hypothetical choices accurately reflect a 'real world' health-related decision context and that consequently the choice data can be held to be a true representation of the respondent's health or treatment preferences. For this to be the case, careful consideration needs to be given to the format of the choice task in a choice experiment. The overarching aim of this paper is to highlight important aspects to consider when designing and 'setting up' the choice tasks to be presented to respondents in a DCE. This includes the importance of considering the potential impact of format (e.g. choice context, choice set presentation and size) as well as choice set content (e.g. labelled and unlabelled choice sets and inclusion of reference alternatives) and choice questions (stated choice versus additional questions designed to explore complete preference orders) on the preference estimates that are elicited from studies. We endeavoure to instil a holistic approach to choice task design that considers format alongside content, experimental design and analysis.
基于选择的偏好诱导方法，如离散选择实验（DCE），会向受访者呈现假设性选择，期望这些假设性选择能准确反映 “现实世界” 中与健康相关的决策情境，从而使选择数据能够被视为受访者健康或治疗偏好的真实体现。要实现这一点，在选择实验中需要仔细考虑选择任务的形式。本文的总体目标是强调在设计和 “构建” 要在DCE中呈现给受访者的选择任务时需要考虑的重要方面。这包括考虑形式（如选择情境、选择集呈现方式和规模）以及选择集内容（如有标签和无标签的选择集以及参考选项的纳入）和选择问题（陈述性选择与旨在探索完整偏好顺序的附加问题）对从研究中得出的偏好估计的潜在影响的重要性。我们努力灌输一种整体的选择任务设计方法，该方法将形式与内容、实验设计和分析一并考虑。
