Teste de McNemar
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
McNemar
About this calculator
The McNemar test calculator is a statistical tool used to compare the success rates of two related binary test methods.
This calculator calculates the χ² value, which is a measure of association between the input variables.
The formula used is χ² = (b−c)²/(b+c), where b is the number of agreements and c is the number of disagreements.
The McNemar test is useful when you want to evaluate if the success rates of two test methods are different, considering the relationship between the responses of the methods.
Frequently asked questions
What is the McNemar test?
The McNemar test is a statistical analysis used to compare the success rates of two related binary test methods.
When to use the McNemar test?
Use the McNemar test when you want to evaluate if the success rates of two test methods are different, considering the relationship between the responses of the methods.
How does the McNemar test formula work?
The McNemar test formula is χ² = (b−c)²/(b+c), where b is the number of agreements and c is the number of disagreements.
What is the χ² variable?
The χ² variable is a measure of association between the input variables and is calculated by the McNemar test.
Why is it important to consider the relationship between the responses of the methods?
It is important to consider the relationship between the responses of the methods because this can affect the success rates and the validity of the test.