T+ = Test positive
T- = Test negative
T = True
F = False
P = Positive
N = Negative
GS+ = Gold standard positive
GS- = Gold standard negative

Sensitivity = TP/TP+FN

Specificity = TN/FP+TN

Positive Predictive Value = TP/TP+FP

Negative Predictive Value = TN/FN+TN

Table 2: Binomial classification method for comparing a modality, practice, or test
with a gold standard and for calculating sensitivity, specificity, positive predictive
value, and negative predictive value.