A. J. Larner 
The 2×2 Matrix 
Contingency, Confusion and the Metrics of Binary Classification

This book describes, extends, and illustrates the metrics of binary classification through worked examples.






Worked examples based on pragmatic test accuracy study data are used in chapters to illustrate relevance to day-to-day clinical practice. Readers will gain an understanding of sensitivity and specificity and predictive values along with many other parameters.






The contents are highly structured, and the use of worked examples facilitates understanding and interpretation.






This book is a resource for clinicians in any discipline who are involved in the performance or assessment of test accuracy studies and professionals in the disciplines of machine learning or informatics wishing to gain insight into clinical applications of 2×2 tables.

Table des matières

Introduction.- Paired measures.- Paired complementary measures.- Unitary measures.- Number needed (reciprocal) measures and their combinations as likelihoods.- Quality (Q) measures.- Graphing methods.- Other measures, other tables.- Classification of metrics of binary classification.

A propos de l’auteur

AJ Larner has been a consultant neurologist with an interest in cognitive disorders for over 20 years, affording him a wealth of experience in the use of 2×2 tables in the context of diagnostic test accuracy studies in clinical practice.