Figure 6.

(A) Individual A_ROC (circles) and accuracy (squares) values are plotted for each subject. Manipulation of performance with staircase method made different individuals converge around 71% of accuracy. Metacognitive sensitivity was not affected as can be seen by the wide range of A_ROC values. The same plot but arranged by dyads is shown in Figure S9A. (B) Correlation between mean dyadic metacognitive sensitivity (computed as A_ROC) and achieved collective benefit (difference between dyadic accuracy and average participants’ accuracy), r(14) = 0.59; p = .01. The black solid line indicates the boundary of collective benefit and collective loss. Points above the line indicate dyads reaching collective benefit. Points below the line indicate collective loss.