Cohen's Kappa Calculator
Compute Cohen's κ = (Pₒ − Pₑ) / (1 − Pₑ) from observed and expected agreement.
Input Data
Input Observed agreement Pₒ.
Input Expected agreement Pₑ.
Results
0.7
κ = (Pₒ − Pₑ) / (1 − Pₑ).
At a glance:Cohen's Kappa Calculator: enter parameters to compute results; complements related calculators.
Formula
κ = (Pₒ − Pₑ) / (1 − Pₑ).
How to Use
- Enter observed and expected (chance) agreement.
- It returns Cohen's κ.
Case Studies
Pₒ=0.85, Pₑ=0.5 → κ=0.7
κ = 0.35/0.5 = 0.7 (substantial agreement).
FAQ
How to interpret κ?
0.61–0.8 substantial, >0.8 almost perfect; 0 is chance.
Related Tools
References
Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.