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A Modification of Fleiss' Kappa in Case of Nominal and Ordinal Variables

v2.1.1 · Sep 2, 2024 · GPL (>= 2)

Description

The kappa statistic implemented by Fleiss is a very popular index for assessing the reliability of agreement among multiple observers. It is used both in the psychological and in the psychiatric field. Other fields of application are typically medicine, biology and engineering. Unfortunately,the kappa statistic may behave inconsistently in case of strong agreement between raters, since this index assumes lower values than it would have been expected. We propose a modification kappa implemented by Fleiss in case of nominal and ordinal variables. Monte Carlo simulations are used both to testing statistical hypotheses and to calculating percentile bootstrap confidence intervals based on proposed statistic in case of nominal and ordinal data.

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OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Jun 9, 2026
NOTE 12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Jun 8, 2026
NOTE r-devel-linux-x86_64-debian-gcc

Rd \usage sections

Warning in file(open = "w+") :
  cannot open file '/tmp/RtmplIqsgL/Rf1198361df52e2c': No space left on device
Error in file(open = "w+") : cannot open the connection
Calls: <Anonymous> -> .load_namespace_quietly -> .try_quietly -> file
Execution halted
The \usage entries for S3 methods should use the \method markup and not
their full name.
See chapter ‘Writing R documentation files’ in the ‘Writing R
Extensions’ manual.
OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Version History

10 tracked
new 2.1.1 Mar 10, 2026
updated 2.1.1 ← 2.1.0 diff Sep 1, 2024
updated 2.1.0 ← 2.0.4 diff Jul 17, 2024
updated 2.0.4 ← 2.0.3 diff May 29, 2024
updated 2.0.3 ← 2.0.2 diff Aug 18, 2023
updated 2.0.2 ← 2.0.1 diff May 8, 2022
updated 2.0.1 ← 2.0 diff Dec 28, 2014
updated 2.0 ← 1.1 diff Dec 23, 2014
updated 1.1 ← 1.0 diff Mar 19, 2014
new 1.0 Mar 5, 2014