# False Omission Rate

## Description

For classification tasks, the terms true positives, true negatives, false positives, and false negatives compare the results of the classifier under test with trusted external judgments. The terms positive and negative refer to the classifier’s prediction (sometimes known as the expectation), and the terms true and false refer to whether that prediction corresponds to the external judgment. False omission rate (FOR) is a statistical method used in multiple hypothesis testing to correct for multiple comparisons and it is the complement of the negative predictive value. It measures the proportion of false negatives which are incorrectly rejected.

Related formulas## Variables

FOR | False Omission Rate (dimensionless) |

FN | Number of False Negatives ( incorrectly rejected) (dimensionless) |

TN | Number of True Negatives (correctly rejected) (dimensionless) |