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. Author manuscript; available in PMC: 2018 Aug 1.
Published in final edited form as: Atten Percept Psychophys. 2016 Nov;78(8):2313–2319. doi: 10.3758/s13414-016-1204-6

Table 2.

Mean underestimation ratios as a function of inter-element distance (clustering) and target numerosity. Values in brackets represent 95% confidence intervals of the mean.

20 elements 40 elements 60 elements
Small 80.2% [75%–86%] 81.0% [79%–83%] 84.4% [82%–87%]
Medium 84.6% [72%–99%] 83.3% [77%–87%] 83.0% [80%–85%]
Large 86.4% [84%–89%] 86.5% [82%–88%] 86.5% [85%–89%]