Concordance Rate Calculator

Concordance Rate Calculator calculator can be used to measure the agreement between two diagnostic tests or assessments.

Input Parameters

Calculation Results

Concordance Rate

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Where:
Concordance Rate = Number of agreements / (Total number of pairs - number of pairs with missing values)

Concordance Rate Calculator Calculator Usage Guide

Learn how to use the Concordance Rate Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the results of Test 1 in the first input field, separated by commas. For example: 1, 0, 1, 1
  2. Enter the results of Test 2 in the second input field, separated by commas, in the same order as Test 1. For example: 1, 1, 1, 0
  3. Click the "Calculate" button to compute the concordance rate.
  4. The concordance rate will be displayed in the result field.

Understanding the Concordance Rate

The concordance rate is a measure of agreement between two diagnostic tests or assessments. It is calculated as the proportion of agreements divided by the total number of pairs, excluding pairs where both values are missing. A concordance rate of 1 indicates perfect agreement, while a rate of 0 indicates no agreement.

Example

Suppose Test 1 results are: 1, 0, 1, 1

And Test 2 results are: 1, 1, 1, 0

The concordance rate would be calculated as follows:

  • Agreements: 3 (positions 0, 2, and 3)
  • Missing pairs: 0
  • Total pairs: 4
  • Concordance Rate: 3 / (4 - 0) = 0.75