. Author manuscript; available in PMC: 2013 Nov 1.

Published in final edited form as: Int Forum Allergy Rhinol. 2012 Jun 13;2(6):453–459. doi: 10.1002/alr.21058

Table 2.

Conventional interpretation of Fleiss’ kappa statistic (K_f) (after Landis & Koch¹⁰).

K_f Range	Categorized Level of Agreement
<0.00 – 0.20	Poor / slight
0.21 – 0.40	Fair
0.41 – 0.60	Moderate
0.61 – 0.80	Strong / substantial
0.81 – 1.00	Almost perfect