 # Question: What Is The Opposite Of A False Positive?

## How does a false positive happen?

In very rare cases, you can have a false-positive result.

This means you’re not pregnant but the test says you are.

You could have a false-positive result if you have blood or protein in your pee.

Certain drugs, such as tranquilizers, anticonvulsants, hypnotics, and fertility drugs, could cause false-positive results..

## What is a false positive example?

False positive: A result that indicates that a given condition is present when it is not. An example of a false positive would be if a particular test designed to detect cancer returns a positive result but the person does not have ‘cancer.

## What is the difference between a false positive and a false negative?

A false positive means that the results say you have the condition you were tested for, but you really don’t. With a false negative, the results say you don’t have a condition, but you really do.

## What is the opposite word of false?

false, mistaken(adj) arising from error. “a false assumption”; “a mistaken view of the situation” Antonyms: apodictic, constant, honorable, echt, valid, realistic, sincere, real, natural, honest, genuine, true, correct, right, sure, apodeictic, actual, truthful, literal, harmonious.

## How is false positive rate defined?

False positive rate (FPR) is a measure of accuracy for a test: be it a medical diagnostic test, a machine learning model, or something else. In technical terms, the false positive rate is defined as the probability of falsely rejecting the null hypothesis.

## How do you calculate false positive and false negative?

Related calculationsFalse positive rate (α) = type I error = 1 − specificity = FP / (FP + TN) = 180 / (180 + 1820) = 9%False negative rate (β) = type II error = 1 − sensitivity = FN / (TP + FN) = 10 / (20 + 10) = 33%Power = sensitivity = 1 − βMore items…