Rocio Garcia-Retamero
Rocio Garcia-Retamero is the first author, with Mirta Galesic and Gerd Gigerenzer, of the 2010 Medical Decision Making paper Do icon arrays help reduce denominator neglect? The paper reports two experiments in which icon arrays improved the accuracy of participants' risk judgments.
Who they are
Garcia-Retamero appears in this site's material as the first author of the 2010 paper. Her institution and wider body of work have not been verified for this site, so this page does not describe them.
Key papers
Garcia-Retamero, R., Galesic, M., & Gigerenzer, G. (2010). Do icon arrays help reduce denominator neglect? Medical Decision Making, 30(6), 672-684. doi:10.1177/0272989X10369000
The paper reports two experiments on how people interpret risk reduction figures when the compared groups differ in size. Participants tended to focus on the numerators and neglected the denominators. Adding icon arrays drew attention to the denominators and improved the accuracy of risk judgments, with a similar benefit for younger and older adults.
Key ideas
The authors conclude that icon arrays are an effective way to eliminate denominator neglect, and that the difficulty lies largely in how the problem is represented and not in the reasoner's mind. The display is described on the page on icon arrays and the effect on the page on denominator neglect.
Sources
- Garcia-Retamero, R., Galesic, M., & Gigerenzer, G. (2010). Do icon arrays help reduce denominator neglect? Medical Decision Making, 30(6), 672-684. doi:10.1177/0272989X10369000