The probability that the test will be negative when the infection is not present.
A high rate of detection of “true negatives”, for example, the fraction of subjects who actually received bad care who are classified as recipients of bad care. For medical screening tests, the proportion of truly non-diseased persons who are so identified by the screening test. It is a measure of the probability of correctly identifying a non-diseased person with a screening test (synonymous with ‘true negative rate’).
n. (in screening tests) see sensitivity.