bags                    Bennett, Alpert, and Goldstein's S
ckap                    Cohen's kappa, weighted kappa, and Conger's
                        kappa
gac                     Gwet's AC1 and AC2
icc                     Intraclass correlation coefficients
kra                     Krippendorff's alpha
rel-package             Reliability coefficients
sem                     Standard error of measurement
spi                     Scott's pi and Fleiss' kappa
