The raincloud plot is a data visualization which is a combination of a density curve of the distribution, and box and whisker plot, and a histogram style dot plot. By showing the density curves these graphs provide the viewer with…
The tetrachoric correlation is a correlation measure for binary variables and is commonly used in psychometrics, particularly for Item Response Theory (IRT). As with other correlation measures, a tetrachoric correlation ranges between -1 and 1, and describes the association between…