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. Author manuscript; available in PMC: 2018 Oct 31.
Published in final edited form as: J Clin Transl Sci. 2018 Jul 6;2(1):31–37. doi: 10.1017/cts.2018.18

Table 3.

Retest reliability. Retest reliability measured by the Intraclass Correlation Coefficient (ICC) for absolute agreement (reference range, 0.61–0.8) and Kappa Coefficient.12, 13, 15 Significant agreement is variously defined as reflected by Kappa coefficients of 0.61–0.8, or more stringently by McHugh, for coefficients from 0.81–.90.15

Survey ICC (95% C.I.) Cohen’s Kappa (95% C.I.)
RPPS-U 0.81 (0.64 – 0.95) 0.84 (0.79 – 0.90)
RPPS-S 0.81 (0.62 – 0.95) 0.85 (0.77 – 0.92)
RPPS-L 0.73 (0.49 – 0.94) 0.81 (0.73 – 0.89)