1. Subset of trials in which the WAVG algorithm reaches a yes decision, whereas the MAJ algorithm reaches a no decision.
Subset of trials in which the WAVG algorithm reaches a yes decision, whereas the MAJ algorithm reaches a no decision. Histogram for the number of individuals in the group who chose the highest confidence rating for signal presence across trials in which the WAVG algorithm reaches a yes decision, whereas the MAJ algorithm reaches a no decision. The histograms show the average of 500 random groups using the same random groups for both tasks, and the error bars mark bootstrap 68.27% confidence intervals. This figure shows results for groups of seven, and the results are similar for groups of three, five, and nine. For this subset of trials, there were many more signal trials in the search task than in the single-location task for which there were one or more observers in the group who chose the highest rating for signal presence (eight on the eight-point confidence scale). This figure complements Fig. 6, which shows similar results comparing AVG with MAJ.
Mordechai Z. Juni, and Miguel P. Eckstein PNAS 2017;114:21:E4306-E4315
©2017 by National Academy of Sciences