Chapter 18. McNemar's Test

  • 18.1 Introduction 325

  • 18.2 Synopsis 325

  • 18.3 Examples 326

  • 18.4 Details & Notes 335

18.1 Introduction

McNemar's test is a special case of comparing two binomial proportions when using paired samples. McNemar's test is often used in a clinical trials application when dichotomous outcomes are recorded for each patient under two different conditions. The conditions might represent different treatments, different measurement times, different body locations, etc. The pair of measurements might also come from two different individuals who are matched based on some characteristic in common. Such matched pairs are usually established using a random pairing of patients who have a common characteristic such as age, or as a natural pairing ...

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