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. Author manuscript; available in PMC: 2014 Aug 17.
Published in final edited form as: Am J Sports Med. 2013 Apr 2;41(6):1229–1237. doi: 10.1177/0363546513483535

Table 2.

Landis and Koch Levels of Reliability

ICC Value Level of Reliability
<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