4.3 Article

The eyes have it: Using eye tracking to inform information processing strategies in multi-attributes choices

Journal

HEALTH ECONOMICS
Volume 27, Issue 4, Pages 709-721

Publisher

WILEY
DOI: 10.1002/hec.3626

Keywords

choice experiments; choices; eye tracking; information processing

Funding

  1. University of Aberdeen
  2. Chief Scientist Office [HERU1] Funding Source: researchfish

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Although choice experiments (CEs) are widely applied in economics to study choice behaviour, understanding of how individuals process attribute information remains limited. We show how eye-tracking methods can provide insight into how decisions are made. Participants completed a CE, while their eye movements were recorded. Results show that although the information presented guided participants' decisions, there were also several processing biases at work. Evidence was found of (a) top-to-bottom, (b) left-to-right, and (c) first-to-last order biases. Experimental factorswhether attributes are defined as best or worst, choice task complexity, and attribute orderingalso influence information processing. How individuals visually process attribute information was shown to be related to their choices. Implications for the design and analysis of CEs and future research are discussed.

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