Inter-Rater Reliability
Contents
What is Inter-Rater Reliability
Inter-Rater Reliability assesses the consistency and agreement between two or more raters or assessors when evaluating the same set of data, observations, or assessments. It quantifies the reliability of their judgments, indicating the degree of agreement in their evaluations. This measure is crucial to ensure consistency in grading or assessment processes, ultimately enhancing the credibility and validity of the evaluations conducted by different raters.
Rubrics and other assessment tools that rely on ratings must exhibit good inter-rater reliability, otherwise they are not reliable evaluations. There are a number of statistical methods that can be used to calculate inter-rater reliability. Different statistics are appropriate for different types of measurement.
How to generate Inter-Rater Reliability Reports in iRubric
Available in RCampus Enterprise Edition, Inter-Rater Reliability reports can be generated for a rubric or for a multi-rater assessment.
IRR for a Rubric
- Open a rubric in the gallery for viewing
- Click on Inter-Rater Reliability button on top of the screen
- Follow the screens to generate the Inter-Rater Reliability report
IRR for a Multi-Rater Assessment
- Open a list of assessments (menu: rubrics > assessments)
- Click on the number under the Completed column for a given assessment.
- If you do not see the number, you do not have access to see this report.
- After openning the report, click on the Inter-Rater Reliability button on top.
Filtering data
Using the filter icon on top of the IRR screen, you can limit the data that is used to generate IRR. For example, if you want to see the report for a given date range, you can specify the dates.
How to Read IRR Reports
IRR Reports display the results in both chart and numeric mode. Please read the online description for each type of IRR.
Downloading Data
You can download input data that generated IRR on top of the screen. You can also download the IRR results by clicking on the Excel or Word icons on top of the data table.
