specificity of test for a condition or disease

Introduction

-..........-

 true negatives / (true negatives + false positives)

or  # negative by the test  /  # without the condition or disease

The proportion of persons without the condition who test negative or the probability of a normal test in the absence of a condition or disease.

A high specificity means that an abnormal test result makes a condition much more likely.

* prevalence does not affect specificity

More general terms

• specificity