Visual Presentation of Statistical Concepts in Diagnostic Testing: The 2 × 2 Diagram
Kevin M. Johnson, Benjamin K. Johnson · American Journal of Roentgenology · 2014
OBJECTIVE: The purpose of this article is to present a visual conceptual framework for important statistical concepts in radiology, and to provide an online application to facilitate this visualization. CONCLUSION: Statistical measures such as sensitivity, specificity, and predictive values are ubiquitous in medical literature, yet thinking fluidly about these concepts is not always easy. The 2 × 2 diagram is a helpful guide.