Example of the Agreement Statistic Option
This example examines the relationship between two raters. The data gives results from three people (raters) rating fifty parts three times each. Examine the relationship between raters A and B.
1. Select Help > Sample Data Library and open Attribute Gauge.jmp.
2. Select Analyze > Fit Y by X.
3. Select A and click Y, Response.
4. Select B and click X, Factor.
5. Click OK.
6. Click the red triangle next to Contingency Analysis of A By B and select Agreement Statistic.
Figure 7.13 Example of the Agreement Statistic Report
You notice that the agreement statistic of 0.86 is high (close to 1) and the p-value of <.0001 is small. This reinforces the high agreement seen by looking at the diagonal of the contingency table. Agreement between the raters occurs when both raters give a rating of 0 or both give a rating of 1.