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Analyse ROC (Courbe Caractéristique d'Opération du Récepteur)×Sensibilité et spécificité×
DomaineStatistiqueStatistiques de recherche
FamilleHypothesis testProcess / pipeline
Année d'origine1954 (signal detection); 1982 (AUC formalization)1978
Auteur d'originePeterson, Birdsall & Fox (signal detection theory); Hanley & McNeil (medical statistics)Multiple sources in medical diagnosis and signal detection
TypeDiagnostic accuracy evaluationConcept
Source fondatriceHanley, J. A., & McNeil, B. J. (1982). The meaning and use of the area under a receiver operating characteristic (ROC) curve. Radiology, 143(1), 29–36. DOI ↗Altman, D. G., & Bland, J. M. (1994). Diagnostic tests 1: Sensitivity and specificity. BMJ, 308(6943), 1552. link ↗
AliasROC curve analysis, AUC analysis, sensitivity-specificity analysis, diagnostic accuracy analysisdiagnostic accuracy, true positive rate, true negative rate, receiver operating characteristic
Apparentées44
RésuméROC analysis evaluates how well a continuous or ordinal test variable discriminates between two binary outcome classes. By plotting the true positive rate (sensitivity) against the false positive rate (1 − specificity) across all decision thresholds, it produces a curve whose area under the curve (AUC) quantifies overall discriminative power, ranging from 0.5 (chance) to 1.0 (perfect discrimination).Sensitivity and specificity are fundamental metrics of diagnostic test accuracy. Sensitivity is the probability that a test correctly identifies a person with the disease (true positive rate: TP / (TP + FN)). Specificity is the probability that a test correctly identifies a person without the disease (true negative rate: TN / (TN + FP)). Every test involves a trade-off: increasing sensitivity (catching all sick people) often reduces specificity (more false alarms). Choice of test threshold depends on the clinical context: screening for serious diseases favors sensitivity; confirming a diagnosis favors specificity.
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ScholarGateComparer des méthodes: ROC analysis · Sensitivity and Specificity. Consulté le 2026-06-15 sur https://scholargate.app/fr/compare