Biostatistics and epidemiology
Diagnostic test accuracy
Sensitivity, specificity, predictive values and likelihood ratios, with a worked pre-test to post-test probability calculation.
Tier 1Medical sciences concept
Written with AI assistance and fact-checked against the sources below. For exam study, not clinical decisions. How notes are made
Core concept
All the measures come from the 2×2 table that compares a test with a reference standard.
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Sources
- Users' Guides to the Medical Literature: A Manual for Evidence-Based Clinical Practice (3rd ed.)JAMA Evidence / McGraw-Hill (Guyatt et al., 2015)
- Users' guides to the medical literature. III. How to use an article about a diagnostic test. B. What are the results and will they help me in caring for my patients?JAMA (Jaeschke, Guyatt and Sackett, 1994;271:703-7), 1994
- STARD 2015: an updated list of essential items for reporting diagnostic accuracy studiesBMJ (Bossuyt et al., 2015)
- Last updated
- 14 November 2026
What changed
- 14 November 2026 Personal emails, About story and Australian-style copy