Why not? – Communicating stochastic information by use of unsorted frequency pictograms – a randomised controlled trial

Jürgen Kasper, Christoph Heesen, Sascha Köpke, Ingrid Mühlhauser & Matthias Lenz
Objective: Statistical health risk information has been proven confusing and difficult to understand. While existing research indicates that presenting risk information in frequency formats is superior to relative risk and probability formats, the optimal design of frequency formats is still unclear. The aim of this study was to compare presentation of multi-figure pictographs in consecutive and random arrangements regarding accuracy in perception and vulnerability for cognitive bias. Methods: A total of 111 patients with multiple...