## How can I present my Kappa result?

# How can I present my Kappa result?

## How can I present my Kappa result?

To analyze this data follow these steps:

- Open the file KAPPA.SAV.
- Select Analyze/Descriptive Statistics/Crosstabs.
- Select Rater A as Row, Rater B as Col.
- Click on the Statistics button, select Kappa and Continue.
- Click OK to display the results for the Kappa test shown here:

### How do you do Cohen’s Kappa in SPSS?

Steps in SPSS Move the variable for each pathologist into the Row(s): and Column(s): box in either order. Select the Statistics… option and in the dialog box that opens select the Kappa checkbox. Select Continue to close this dialog box and then select OK to generate the output for the Cohen’s Kappa.

**When should Kappa be used?**

Cohen’s kappa is a metric often used to assess the agreement between two raters. It can also be used to assess the performance of a classification model.

**How do you calculate Kappa inter rater reliability?**

Inter-Rater Reliability Methods

- Count the number of ratings in agreement. In the above table, that’s 3.
- Count the total number of ratings. For this example, that’s 5.
- Divide the total by the number in agreement to get a fraction: 3/5.
- Convert to a percentage: 3/5 = 60%.

## What is a good Kappa score?

Table 3.

Value of Kappa | Level of Agreement | % of Data that are Reliable |
---|---|---|

.40–.59 | Weak | 15–35% |

.60–.79 | Moderate | 35–63% |

.80–.90 | Strong | 64–81% |

Above.90 | Almost Perfect | 82–100% |

### How do you measure Cohen’s kappa?

Lastly, the formula for Cohen’s Kappa is the probability of agreement take away the probability of random agreement divided by 1 minus the probability of random agreement.

**Why is kappa better than accuracy?**

Accuracy and Kappa It is more useful on a binary classification than multi-class classification problems because it can be less clear exactly how the accuracy breaks down across those classes (e.g. you need to go deeper with a confusion matrix). Learn more about Kappa here.

**What is considered a good kappa score?**

## How do you run Cohen’s kappa?

### What are kappa values?

The value of Kappa is defined as. The numerator represents the discrepancy between the observed probability of success and the probability of success under the assumption of an extremely bad case.