1. Kappa and its dependence on marginal rates;Cook,1998
2. High agreement but low kappa: I. The problems of two paradoxes;Feinstein;J Clin Epidemiol,1990
3. Practical statistics for medical research;Altman,1991
4. A reappraisal of the kappa coefficient;Thompson;J Clin Epidemiol,1988
5. How reliable are chance-corrected measures of agreement?;Guggenmoos-Holzmann;Stat Med,1993