Introduction

A. J. Larner
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A. J. Larner: Walton Centre for Neurology and Neurosurgery, Cognitive Function Clinic

Chapter Chapter 1 in The 2x2 Matrix, 2021, pp 1-14 from Springer

Abstract: Abstract This chapter describes the basic fourfold, 2 × 2, contingency table, cross-classifying actual and predicted classes, and introduces various notations (literal, algebraic, probability, error) which will be used to define various measures derived from the 2 × 2 table which are described in the subsequent chapters. It also considers prevalence rate, level of test (positive and negative sign rates), and the setting of decision thresholds or cut-offs.

Keywords: 2 × 2 contingency table; Confusion matrix; Cut-offs; Decision thresholds; Prevalence rates (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-030-74920-0_1

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DOI: 10.1007/978-3-030-74920-0_1

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