Question

If the $E$ and $C$ treatments are comparable, what test can we use to compare the percentage of subjects who have less pain with the $E$ eye vs. the $C$ eye?

    If the $E$ and $C$ treatments are comparable, what test can we use to compare the percentage of subjects who have less pain with the $E$ eye vs. the $C$ eye?

Fundamentals of Biostatistics

Fundamentals of Biostatistics

Bernard Rosner 8th Edition

Chapter 8, Problem 166

Instant Answer

Solved by Expert Victor Salazar

09/16/2023

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We have two treatments, $E$ and $C$, and we want to compare the percentage of subjects who have less pain with the $E$ eye vs. the $C$ eye. Show more…

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If the $E$ and $C$ treatments are comparable, what test can we use to compare the percentage of subjects who have less pain with the $E$ eye vs. the $C$ eye?

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Key Concepts

Paired Design

A paired design involves subjects receiving both treatments or conditions, which results in correlated outcomes. This design requires statistical tests that account for the dependency between paired observations rather than treating them as independent samples.

Categorical Data Analysis

Categorical data analysis focuses on variables that take on discrete values, such as categories or proportions. When comparing the percentage of subjects exhibiting a specific outcome, statistical methods are applied to analyze the frequency distribution across categories.

McNemar's Test

McNemar's test is a non-parametric method used for analyzing paired nominal data in a 2x2 contingency table. It specifically assesses the significance of the differences in proportions of discordant pairs, making it ideal for comparing outcomes like treatment effects in a matched or paired study design.

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