Cohen's Kappa Calculator illustration

Cohen's Kappa Calculator

Computes Cohen's κ from a square agreement matrix where cell (i, j) counts items rated category i by rater 1 and category j by rater 2.

Square matrix: rows = rater 1, columns = rater 2.

Notes

  • Landis–Koch interpretation: < 0.21 slight, 0.21–0.40 fair, 0.41–0.60 moderate, 0.61–0.80 substantial, > 0.80 almost perfect.

Explore the idea

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