false negative


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false negative

n.
A test result that is false-negative.

false negative

n
1. (Medicine) a result in a medical test that wrongly indicates the absence of the condition being tested for
2. (Medicine) a person from whom such a result is obtained
References in periodicals archive ?
So false negative rate of test B is c/(a+c) = 10/40 = 0.
One can arrive at the relative costs by deciding how many false positives one will accept for every false negative, or equivalently, how many false negatives one will accept for every false positive.
The staff report, which is not an official Commission report but reflects the views and findings of some of its staff members, specifically cautioned that the available lead test kits today often result in too many false positives or false negatives.
But yesterday a spokesman for the trust said they were not aware of any woman finding out she was actually pregnant after being given a false negative result.
The concern expressed by advocates of the precautionary principle is about the failure to detect a problem, the chance of allowing a false negative (a type II error).
This result was obviously a false negative, a nonlegitimate negative that might have detained a perfectly viable and necessary investigation.
Both computerized systems are intended to reduce the false negative rate in Pap smears.
A test result that misses something really there is called a false negative.
In addition, the records of the 1,252 patients not scoring in the severe" range were examined to determine the incidence of false negative findings, that is, the number of patients who made unsuccessful or successful suicide attempts and were identified by test results as being subacute.
Clinically, our research has shown that this assay can virtually eliminate errors, in terms of false negative or false positive results, commonly associated with current testing methods.
If a rule was not triggered but the smear contained a positive finding, the sample was graded as a false negative.