Upload your data and get a complete intraclass correlation — rater reliability report. Free.
Free analyses run on up to 10,000 rows. Larger files are randomly sampled to that size — sign up to analyze your full dataset.
Running intraclass correlation — rater reliability analysis...
Sent to — interactive charts, statistical results, R code, and AI insights.
Analyze another fileStandard-library analysis: how consistent are your raters, instruments, or repeated measurements? Upload long-format ratings (one row per rating) and get the full intraclass correlation family — ICC(1,1), ICC(2,1), ICC(3,1) and the average-measure versions — computed from ANOVA variance components, with Koo & Li interpretation bands, a systematic rater-bias check, a subject-level agreement plot, and a variance breakdown showing exactly where the disagreement comes from. Built for reliability studies: inter-rater agreement, test-retest, instrument comparison.
Interactive table visualization
Interactive bar visualization
Interactive scatter visualization
Interactive bar visualization
Plain-English interpretation — what the numbers mean, what's significant, and what to do next.
Measure inter-rater reliability for graders, clinicians, judges, or annotation teams
See our FAQ for details on pricing, data privacy, and how the analysis works. Every report includes a Methodology section showing the statistical test, assumptions checked, and diagnostics run.
Run any analysis on your own data — validated R analyses, interactive reports, AI insights, and PDF export.
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