Hi, I am having problems getting cohen's kappa to work. I have been using the function:
><-ckappa(x,y) from the psy package. I am trying to test for inter-observer reliability, I have 2 observers and 26 categories, however, the two observers might not necessarily have the same range of categories (I have unequal score ranges). However, I thought R could cope with this. Each time I try the function above I get the following output: >Error in ckappa(ob1, ob2) : unused argument(s) (ob2) I got this even when I altered the data to have equal score ranges, therefore I am not sure what this means or what I should do!! Any help in this area would be much appreciated, or anything about the best way to deal with inter-observer reliability (my data is all categorical), Thanks, Julia. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.