false-negative


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Related to false-negative: beta error

false-negative

 [fawls´ neg´ah-tiv]
1. denoting a test result that wrongly excludes an individual from a diagnostic or other category.
2. an individual so excluded.
3. an instance of such a result; called also false-negative reaction.

false-negative

/false-neg·a·tive/ (fawls´ neg´ah-tiv)
1. denoting a test result that wrongly excludes an individual from a category.
2. an individual so excluded.
3. an instance of a false-negative result.

false-negative

(fôls′nĕg′ə-tĭv)
adj.
Being or relating to a result from a medical test that is erroneously negative.

type-2 error

An error made when a test fails to reject a false null hypothesis.
References in periodicals archive ?
Lot-to-lot variability was also observed in false-negative rates across the 5 lots.
chi square] and Fisher exact tests were used to compare the efficiency, false-positive rate, false-negative rate, and review rate between different sets of criteria.
For patients whose initial prostate-biopsy results come back negative, PCMT can often prevent the need for multiple biopsies by eliminating false-negative results.
With the variation in reactivity of various assays with different hCG variants, false-negative results might arise.
Earlier results of validation studies on SLNB technique have shown an increased risk of false-negative results from SLNB in MF/MC cancers due to the potential complexity of lymphatic drainage [10-12].
8%) had false-negative RUTs at 24 hours, with confirmed evidence of H.
False-negative results may prevent some patients who are infected with or carrying the virus from receiving necessary treatment.
Figure 1 shows that four quantitative characteristics [sensitivity (Se), specificity (Sp), positive predictive value (PPV), and negative predictive value (NPV)] are defined by two properties of the screening method (the false-positive rate, or, and the false-negative rate, [3) and by a property of the danger being assessed, the frequency of true hazards, P[H], where H is a true hazard.
All intrusion detection products are prone to false-positive and false-negative alerts, but none more so than network-based IDS solutions.
BOSTON -- False-negative mammograms are more likely to occur in women whose breast cancer is linked to a BRCA gene mutation than in those with sporadic disease, Dr.
About one in 10 women with breast cancer will produce false-negative results - meaning their tumour is "mammographically invisible".