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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