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Mean proportions of correct answers (left) and interindividual variation in the proportions (right) as a function of distance pair (abscissa) and nominal source azimuth (shades of gray), separated with respect to presentation order: Close – Far (CF) and Far – Close (FC). For better interpretability, the plots show the raw data instead of the transformed data that was submitted to statistical testing. The error bars in the mean plots (left) display 95% confidence intervals based on the respective one-sample t tests comparing the means of the raw data against non-transformed chance level of 0.5. The box plots (right) show the median and the (across participants) interquartile range (IQR) per condition; whiskers display 1.5 × IQR below the 25th or above the 75th percentile and outliers are indicated by plus signs.
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