Related Experiment Video
Updated: Jan 23, 2026

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
Published on: September 16, 2025
The Certainty-Agreement diagram: comparing the functionality of coding schemes in primary care clinical information
Philip J Brown1, Victoria Warmington
1School of Information Systems, University of East Anglia, Norwich, Norfolk, UK.
Abstract:
Despite enormous investment of effort and resources there are few formal comparative evaluations between different coding schemes. We have recently described a methodology of a randomised crossover trial comparing the performance of Clinical Terms Version 3 (CTV3) and Read Codes 5 Byte set (RC5B) coding schemes in General Practice. 1 This study looked at the comparative performance of the two coding schemes by 10 general practitioners using a total of 995 concepts extracted from clinical records. This paper describes the use of the Certainty-Agreement diagram in providing a graphical representation of comparative functionality.
Related Concept Videos
Functional Brain Systems: Limbic System
Comparative Excretory Systems
Phase Diagrams
lncRNA - Long Non-coding RNAs
The Z-Scheme of Electron Transport in Photosynthesis
Transfer Function in Control Systems
To derive the transfer function, consider a general nth-order linear time-invariant...

