%0 Journal Article %1 GuggenmoosHolzmann:Vonk:98 %A Guggenmoos-Holzmann, Irene %A Vonk, Richard %D 1998 %J Statistics in Medicine %K annotation statistics kappa %N 8 %P 797-812 %T Kappa-like indices of observer agreement viewed from a latent class perspective %U http://www3.interscience.wiley.com/cgi-bin/abstract/3155/ABSTRACT?CRETRY=1&SRETRY=0 %V 17 %X It is common practice to assess consistency of diagnostic ratings in terms of agreement beyond chance. To explore the interpretation of such a term we consider relevant statistical techniques such as Cohen's kappa and log-linear models for agreement on nominal ratings. We relate these approaches to a special latent class concept that decomposes observed ratings into a class of systematically consistent and a class of fortuitous ratings. This decomposition provides a common framework in which the specific premises of Cohen's kappa and of log-linear models can be identified and put into perspective. As a result it is shown that Cohen's kappa may be an inadequate and biased index of chance-corrected agreement in studies of intra-observer as well as inter-observer consistency. We suggest a more critical use and interpretation of measures gauging observer reliability by the amount of agreement beyond chance.

@article{GuggenmoosHolzmann:Vonk:98, abstract = {It is common practice to assess consistency of diagnostic ratings in terms of agreement beyond chance. To explore the interpretation of such a term we consider relevant statistical techniques such as Cohen's kappa and log-linear models for agreement on nominal ratings. We relate these approaches to a special latent class concept that decomposes observed ratings into a class of systematically consistent and a class of fortuitous ratings. This decomposition provides a common framework in which the specific premises of Cohen's kappa and of log-linear models can be identified and put into perspective. As a result it is shown that Cohen's kappa may be an inadequate and biased index of chance-corrected agreement in studies of intra-observer as well as inter-observer consistency. We suggest a more critical use and interpretation of measures gauging observer reliability by the amount of agreement beyond chance.}, added-at = {2007-01-31T04:55:37.000+0100}, author = {Guggenmoos-Holzmann, Irene and Vonk, Richard}, biburl = {https://www.bibsonomy.org/bibtex/222595770865145552a35c9a49bbcaae8/stefano}, interhash = {2545c1df03f785c1aa218a5758570213}, intrahash = {22595770865145552a35c9a49bbcaae8}, journal = {Statistics in Medicine}, keywords = {annotation statistics kappa}, number = 8, pages = {797-812}, timestamp = {2007-01-31T04:55:37.000+0100}, title = {Kappa-like indices of observer agreement viewed from a latent class perspective}, url = {http://www3.interscience.wiley.com/cgi-bin/abstract/3155/ABSTRACT?CRETRY=1&SRETRY=0}, volume = 17, year = 1998 }