. 2006 Jan 5;32(2):310–326. doi: 10.1093/schbul/sbj035

Table 1.

Formulas for Calculating the New Metacognitive Measures

Measure	Formula
Quantity score =	N_correct / N_total
Accuracy score =	V_correct / V_total
Free-choice improvement =	Accuracy score – Quantity score
Global monitoring =	N_correct – V_total
Monitoring resolution =	γ_{Rconfidence Rcorrect}
Control sensitivity =	γ_{Rconfidence Rventure}
Monetary gains =	V_correct – V_incorrect

Note: N_total = total number of items that were presented; N_correct = total number of correct responses; V_total = total number of volunteered responses; V_correct = total number of correct responses out of those volunteered; V_incorrect = total number of incorrect responses out of those volunteered; R_confidence = confidence in the correctness of a given response; R_correct = actual correctness of a given response; R_venture = actual decision to venture a given response; γ = within participant Kruskal-Goodman gamma correlation.