In the article “A Guideline of Selecting and Reporting Intraclass Correlation Coefficients for Reliability Research” by Koo and Li in the June 2016 issue (2016;15(2):155-163; https://doi.org/10.1016/j.jcm.2016.02.012), an error was discovered in Table 3. In the formula for ICC (1,1), the term (k + 1) in the denominator should be (k − 1). The corrected table has been reproduced below. The authors apologize for this error.
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