Box plot showing the preferences scores for the six risk presentation formats. Abbreviations: BF = augmented bar chart + flow diagram; IB = augmented icon display + augmented bar chart; IF = augmented icon display + flow chart; Bars = augmented bar chart; Flow = flow diagram; Icons = augmented icon display. Box plot details: The horizontal line inside the box indicates the median value. The inner box indicates the inter-quartile range that runs between the 25th to 75th percentiles. The upper line extending from the box indicates the largest value between the 75th percentile and the point that is 1.5 times the inter-quartile range. The lower line extending from the box indicates the smallest point between the 25th percentile and 1.5 times the inter-quartile range. The circles represent values that lie outside these ranges.