11.3 Vocabulary terms
Also other names for the same term, and formulas.
True positive (\(n_{11}\))
True negative (\(n_{22}\))
False positive, Type I error (\(n_{12}\))
False negative, Type II error (\(n_{21}\))
True positive rate (TPR), Recall, Sensitivity, probability of detection, power. \(\frac{\# True Positive}{\#Condition Positive}\)
False positive rate (FPR), fall-out, probability of false alarm. \(\frac{\# False Positive}{\# Condition Negative}\)
False negative rate (FNR), miss rate. \(\frac{\# False Negative}{\# Condition Positive}\)
True negative rate (TNR), Specificity, selectivity. \(\frac{\# True Negative}{\# Condition Negative}\)
Prevalence. \(\frac{\# Condition Positive}{\# Total Population}\)
Accuracy. \(\frac{\# True Positive + \# True Negative}{\# Total Population}\)
Positive Predictive Value (PPV), Precision. \(\frac{\# True Positive}{\# Predicted Condition Positive}\)
False discovery rate (FDR). \(\frac{\# False Positive}{\# Predicted Condition Positive}\)
False omission rate (FOR). \(\frac{\# False Negative}{\# Predicted Condition Negative}\)
Negative predictive value (NPV). \(\frac{\# True Negative}{\# Predicted Condition Negative}\)
F1 score. \(\frac{2 * (Precision * Recall)}{Precision + Recall}\)