Curve plotting sensitivity versus one minus specificity at various thresholds
Expansion
Receiver Operating Characteristic
Purpose
Evaluates diagnostic test performance across thresholds; area under curve quantifies overall accuracy
Clinical Context
Receiver operating characteristic curve plots true positive rate versus false positive rate. Area under curve (0 to 1) summary statistic. Area under curve 1.0 equals perfect, 0.5 equals no discrimination.
Related Terms
- Area under curve
- Sensitivity
- Specificity
Key Points
- Receiver operating characteristic area under curve greater than 0.9 excellent, 0.8 to 0.9 good, 0.7 to 0.8 fair, less than 0.7 poor