Description Usage Arguments Value References
Calculates the ordinal alpha by using polychoric correlation (see Zumbo et al. 2007).
1 |
x |
A set of variables (either a data frame or a matrix). |
Cronbach's Alpha for ordinal data.
Zumbo, B. D., Gadermann, A. M., & Zeisser, C. (2007). Ordinal Versions of Coefficients Alpha and Theta for Likert Rating Skales. Journal of Modern Applied Statistical Methods, 6(1), 21–29.
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