![Physio Meets Science on Twitter: Physio Meets Science on Twitter:](https://pbs.twimg.com/media/E4GXdHaWYAU8cQB.jpg:large)
Physio Meets Science on Twitter: "The Conundrum of Kappa and why some Musculoskeletal Tests Appear Unreliable despite High Agreement: A Comparison of Cohen Kappa and Gwet's AC to Assess Observer Agreement when
![Cohen's kappa in SPSS Statistics - Procedure, output and interpretation of the output using a relevant example | Laerd Statistics Cohen's kappa in SPSS Statistics - Procedure, output and interpretation of the output using a relevant example | Laerd Statistics](https://statistics.laerd.com/spss-tutorials/img/ck/crosstabs-cells-cohens-kappa-default-option-checked-v27.png)
Cohen's kappa in SPSS Statistics - Procedure, output and interpretation of the output using a relevant example | Laerd Statistics
![How do I calculate correlation rate and kappa statistic between two (ordinal) categorical variables in R? - Stack Overflow How do I calculate correlation rate and kappa statistic between two (ordinal) categorical variables in R? - Stack Overflow](https://i.stack.imgur.com/7XHGC.png)
How do I calculate correlation rate and kappa statistic between two (ordinal) categorical variables in R? - Stack Overflow
![Cohen's kappa in SPSS Statistics - Procedure, output and interpretation of the output using a relevant example | Laerd Statistics Cohen's kappa in SPSS Statistics - Procedure, output and interpretation of the output using a relevant example | Laerd Statistics](https://statistics.laerd.com/spss-tutorials/img/ck/crosstabs-statistics-cohens-kappa-kappa-checked-v27.png)