Raw rating data used as an example in Gwet (2014) and carried over from the legacy `misskappa` package: 20 subjects, five raters, four categories (`0`–`3`). Some ratings are missing (`NA`), so it is a compact worked example for the missing-data categorical estimators.
Format
A 20 x 5 data frame; columns `rater1`–`rater5` hold category codes `0`–`3`, with `NA` marking unobserved ratings.
Source
Carried over from the legacy `misskappa` package; appears as an example in Gwet, K. L. (2014), Handbook of Inter-Rater Reliability.
Examples
kappa(dat.gwet2014, estimator = "ipw", weight = "linear")
#> Warning: rater pair(s) rater4-rater5 co-observed by only one subject; the corresponding pairwise covariance is degenerate and the standard error unreliable.
#> misskappa: estimator=ipw, weight=linear
#> estimate se lower upper
#> Conger 0.5879 0.0772 0.4365 0.7393
#> Fleiss 0.5858 0.0774 0.4341 0.7375
#> Brennan-Prediger 0.6397 0.0767 0.4894 0.7900