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Table 4 Kappa interpretation rules by Landis and Koch (1977)

From: An ontology-aware integration of clinical models, terminologies and guidelines: an exploratory study of the Scale for the Assessment and Rating of Ataxia (SARA)

Kappa Statistic

Strength of agreement

0.00

Poor

0.00-0.20

Slight

0.21-0.40

Fair

0.41-0.60

Moderate

0.61-0.80

Substantial

0.81-1.00

Almost Perfect