What works better for preference elicitation among older people? Cognitive burden of discrete choice experiment and case 2 best-worst scaling in an online setting

To appropriately weight dimensions of quality life instruments for health economic evaluations, population and patient preferences need to be elicited. Two commonly used elicitation methods this purpose are discrete choice experiments (DCE) case 2 best-worst scaling (BWS). These differ in terms their cognitive burden, which is especially relevant when eliciting among older people. Using a randomised experiment with respondents from an online panel, paper examines the burden associated colour-coded level overlapped DCE, BWS, ‘standard’ BWS tasks complex state valuation setting. Our sample included 469 individuals aged 65 above. Based on both revealed stated we found that DCE were less cognitively burdensome than BWS. Colour coding cannot recommended as its effect was clear colour lead undesired heuristics. results have implications future valuations at least serve example assessing different types experiments.