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A comparison of Cohen’s Kappa and Gwet’s AC1 when calculating inter-rater reliability coefficients: a study conducted with personality disorder samples

Nahathai Wongpakaran*, Tinakon Wongpakaran, Danny Wedding and Kilem L Gwet

BMC Medical Research Methodology 2013, 13:61  doi:10.1186/1471-2288-13-61