| Predicted 0 | Predicted 1 | |
| Actual 0 | True Negative | False Positive |
| Actual 1 | False Negative | True Positive |
| Accuracy | Error Rate |
| ( True Negative + True Positive ) / Number of observations |
( False Negative + False Positive ) / Number of Observations |
| Sensitivity | Specificity |
| True Positive / ( True Positive + False Negative ) |
True Negative / ( True Negative + False Positive ) |
| False Negative Error Rate | False Positive Error Rate |
| False Negative / ( True Positive + False Negative ) |
False Positive / ( True Negative + False Positive ) |