ROC curve
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re·ceiv·er op·er·at·ing char·ac·ter·is·tic curve
1. a plot of percentage of true positive results versus percentage of false positive results, usually in a trial of a diagnostic test.
2. a graphic means of assessing the ability of a screening test to discriminate between healthy and diseased people.
Synonym(s): ROC curve
ROC curve
Receiver operating characteristic curve. A graphic depiction of the relationship between the true positive ratio (sensitivity) and false positive ratio (1) specificity as a function of the cut-off level of a disease or condition marker.curve
(kurv) [L. curvus, bent, crooked]A bend, chart, or graph.
bell curve
Normal distribution.curve of Carus
See: curve of Caruscharacteristic curve
Sensitometric curve.dental curve
Curve of Spee.D log E curve
Sensitometric curve.dose response curve
A graph charting the effect of a specific dose of drug, chemical, or ionizing radiation.
dye-dilution curve
A graph of the disappearance rate of a known amount of injected dye from the circulation; used to measure cardiac function.
epidemic curve
A chart or graph in which the number of new cases of an illness is plotted over time.
Gaussian curve
Normal distribution.growth curve
A graph of heights and weights, head circumference, and body mass index of infants and children of various ages. A line connecting the data points produces the curve. Usually the changes in height and weight are shown on the same chart. Growth charts are specific for age and gender.
learning curve
The effect of learning or practice on the performance of an intellectual or physical task. The term describes the acquisition of competence with experience, time, and training.
normal curve
Normal distribution.receiver operating curve
Abbreviation: ROC curveA plot of the fraction of true positives test results versus the fraction of false positive test results; the sensitivity of a test versus (1-the test specificity).
Synonym: receiver operating characteristicsensitometric curve
In radiographic film analysis, the curve derived by graphing the exposure to the film versus the film density. Analysis yields information about the contrast, speed, latitude, and maximum and minimum densities of the film or film-screen system. Digital radiography systems exhibit linear curves.
Synonym: characteristic curve; D log E curve; Hurter and Driffield curvecurve of Spee
See: curve of SpeeStephan curve
See: Stephan curvesurvival curve
In radiobiology, a dose response curve.
time-temperature cooling curve
The mathematical relation that plots the physical and chemical behaviors of dental (and other) materials as their temperature decreases over time.
receiver operating curve
Abbreviation: ROC curveA plot of the fraction of true positives test results versus the fraction of false positive test results; the sensitivity of a test versus (1-the test specificity).
Synonym: receiver operating characteristicSee also: curve
ROC curve
acronym for receiver operating characteristic curve. A graphical method of assessing the characteristic of a diagnostic test.