Kappa de Cohen (2 raters)
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
Kappa
About this calculator
The Kappa of Cohen calculator is a tool to calculate the agreement between two evaluators (or raters) in a categorical scale. The Cohen's Kappa coefficient (κ) is a statistical measure that helps to evaluate the agreement between the evaluators, adjusting for the expected agreement by chance.
To calculate the Kappa, you need to provide the agreement matrices between the two evaluators. The matrix is a table that shows which categories the evaluators assigned to each item or observation.
The Kappa can be used in a variety of contexts, from performance evaluation in sports to data analysis in health studies. However, it is essential to remember that the Kappa is not a performance measure, but rather a measure of the agreement between the evaluators.
Frequently asked questions
What is the Kappa of Cohen?
The Kappa of Cohen is a statistical coefficient that helps to evaluate the agreement between two evaluators in a categorical scale. It adjusts for the expected agreement by chance.
What can I use the Kappa for?
The Kappa can be used in a variety of contexts, from performance evaluation in sports to data analysis in health studies.
How can I calculate the Kappa?
To calculate the Kappa, you need to provide the agreement matrices between the two evaluators.
What is important to remember when using the Kappa?
Remember that the Kappa is not a performance measure, but rather a measure of the agreement between the evaluators.