PubMed · 14945549
The source did not provide an abstract. Follow the original record for more information.
Explore connections, maps & timelines
F GREWEL. 1952. [Diagnostic tests].. https://pubmed.ncbi.nlm.nih.gov/14945549/
Cite the original work for its findings. Save a collection to share your selection of sources.
KEEP EXPLORING
Traditionally, the receiver operating characteristic (ROC) curve for a diagnostic test plots true positives (sensitivity) against false positives (one minus specificity). However, this representation brings with it several drawbacks. A transformation to positive and negative likelihood ratio co-ordinates, scaled by base-ten logarithms, offers several advantages. First we motivate the use of positive and negative likelihood ratios, emphasizing their relationship to modification of the odds ratio. Then we highlight properties of likelihood ratios using the traditional ROC axes. Finally, we demonstrate ROC curves and their properties after conversion to likelihood ratio co-ordinates. These graphs do not waste space for tests lacking diagnostic power, and offer a simple visual assessment of a test's impact on the odds ratio.
Explore the source record for details and available documents.
Explore the source record for details and available documents.