7 papers analyzed
These studies suggest that number formats impact perceived risk, with probability formats and frequency formats generally amplifying perceived risk, while absolute numbers and mixed formats tend to reduce it.
The way numerical information is presented can significantly impact how people perceive risks. This synthesis examines various studies to understand how different number formats influence perceived risk, emotional responses, and decision-making.
Probability Formats and Emotional Impact:
Ease of Interpretation and Perceived Likelihood:
Numeracy and Risk Perception:
Total Cases vs. Frequency and Proportion:
Credibility and Correctness:
Graphical Formats:
Different number formats significantly influence perceived risk, with probability formats (simple fractions and percentages) generally amplifying emotional responses and perceived risks. The "1-in-X" format is easier to interpret and conveys higher perceived likelihoods. Numeracy plays a crucial role in how risk information is processed, with less-numerate individuals perceiving higher risks from frequency formats. Total-case formats tend to increase perceived risks compared to frequency and proportion formats. Numerical formats are also seen as more credible in risk communication, especially after erroneous predictions. Graphical formats can aid in drawing attention and improving risk awareness, particularly for those with lower numeracy.
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