specificity

(redirected from True negative)
Also found in: Thesaurus, Medical, Acronyms, Encyclopedia.
Related to True negative: False Negative Rate

spe·cif·ic

 (spĭ-sĭf′ĭk)
adj.
1.
a. Explicitly set forth; definite: wrote specific instructions. See Synonyms at explicit.
b. Clear or detailed in communicating: Be specific when telling us what you need.
2.
a. Limited, distinctive, or unique: problems specific to small colleges.
b. Intended for, applying to, or acting on a particular thing: a specific remedy for warts.
c. Concerned particularly with the subject specified. Often used in combination: "age-specific voting patterns" (A. Dianne Schmidley).
3. Relating to, characterizing, or distinguishing a species: a specific name.
4.
a. Designating a disease produced by a particular microorganism or condition.
b. Having a remedial influence or effect on a particular disease.
5. Immunology Having an affinity limited to a particular antibody or antigen.
6.
a. Designating a customs charge levied on merchandise by unit or weight rather than according to value.
b. Designating a commodity rate applicable to the transportation of a single commodity between named points.
n.
1.
a. Something particularly fitted to a use or purpose.
b. A remedy intended for a particular ailment or disorder.
2.
a. A distinguishing quality or attribute.
b. specifics Distinct items or details; particulars.

[Medieval Latin specificus : Latin speciēs, kind, species; see species + Latin -ficus, -fic.]

spe·cif′i·cal·ly adv.
spec′i·fic′i·ty (spĕs′ə-fĭs′ĭ-tē) n.

spec•i•fic•i•ty

(ˌspɛs əˈfɪs ɪ ti)

n.
1. the quality or state of being specific.
2. Biol. the selective attachment or influence of one substance on another, as of an antibiotic on its target organism.
[1875–80]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.specificity - the quality of being specific rather than general; "add a desirable note of specificity to the discussion"; "the specificity of the symptoms of the disease"
particularity, specialness - the quality of being particular and pertaining to a specific case or instance; "the particularity of human situations"
2.specificity - the quality of being specific to a particular organism; "host specificity of a parasite"
particularity, specialness - the quality of being particular and pertaining to a specific case or instance; "the particularity of human situations"
Translations
References in periodicals archive ?
Results showed that overall 46.8% were true positives, 37.5% were true negatives, 7% were false positives and 8.5% were false negatives (Table-1).
Diagnostic accuracy of plasma lactate in neonatal birth asphyxia by taking pH as gold standard was calculated, where True positive were noted as 194 (80.83%), false positive 7 (2.92%), true negative 31 (12.92%) and false negative were 8 (3.33%), whereas sensitivity, specificity, positive predictive value, negative predictive value and accuracy rate were calculated as 81.58%, 96.52%, 81.58% and 93.75% respectively (table-II).
Four clinically negative samples were identified as false positives and 16 samples were true negatives by the uniplex PCR.
Outcome HGSVI LGSVI Injury NDVI OMFF False negative 2 (12.5) 0 0 8 (50.0) False positive 0 4 (66.7) 2 (33.3) 0 True negative 0 14 (43.8) 18 (56.3) 0 True positive 37 (72.5) 2 (3.9) 2 (3.9) 4 (7.8) Total 39 (37.1) 20 (19.0) 22 (21.0) 12 (11.4) Outcome Other Total False negative 6 (37.5) 16 (100) False positive 0 6 (100) True negative 0 32 (100) True positive 6 (11.8) 51 (100) Total 12 (11.4) 105 (100) HGSVI--high-grade solid visceral injuries, LGSVI--low-grade solid visceral injuries, NDVI--no detectable visceral injuries, OMFF--only mild free fluid
The line for Accuracy True Positive True Negative validation images Ratio (TPR) Ratio (TNR) 8009-1 0.945 0.794 0.959 8009-2 0.978 0.719 0.989 8009-3 0.958 0.702 0.991 8009-4 0.979 0.741 0.980 Table 2: Accuracy of the deep CNN depending on the window size of the convolutional layer.
Both KOH and culture positive were 136 (true positive), KOH-ve but culture positive were 16 (false negative), KOH+ve but culture negative were 8 (false positive), both KOH and culture negative were 40 (true negative).
While 211 patients had a positive cotinine assays ([greater than or equal to]500 ng/mL) and reported tobacco use (true positive), 202 had a negative cotinine assay and reported no tobacco use (true negative); (sensitivity: 87.2%, specificity: 89.0%).
Out of 56 cases of clinically diagnosed potentially malignant lesions, VELscope detected overall 39 cases as true positive, 4 cases as true negative, 1 case as false positive, and 12 cases as false negative with sensitivity of 76.6% and specificity of 80% with positive predictive value (PPV) as 97.5% and negative predictive value (NPV) as 25%.
Similarly, the NPV is the likelihood that a negative test result is obtained on a true negative sample.