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Table 5 Continuity axiom and decision strategy

From: Exploring how individuals complete the choice tasks in a discrete choice experiment: an interview study

   Average over all four choice tasks (%)
Rotavirus cohort (n = 35) Motivating decision (continuity axiom)a  
  Motivation based on one attribute 7.2
  Motivation based on two attributes 20.0
  Motivation based on three or more attributes 72.9
  Decision strategy for those who acted in accordance with the continuity axiom  
  Traded off attribute levels between each other 85.6
  One attribute was most decisive 11.5
  Otherwise 2.9
Prostate cancer-screening cohort (n = 35) Motivating decision (continuity axiom)a b  
  Motivation based on one attribute 17.9
  Motivation based on two attributes 16.4
  Motivation based on three or more attributes 60.0
  Decision strategy for those who acted in accordance with the continuity axiom  
  Traded off attribute levels between each other 60.0
  One attribute was most decisive 26.4
  Otherwise 13.6
  1. aParticipants were marked as acting in accordance with the continuity axiom, only if they motivated their decision based on three or more attributes
  2. bThese numbers do not add up to 100 % because some men did not mention any of the attributes when motivating which scenario they preferred; they chose opt-out (5.7 %)