Proposal for the calculation of the Ordinal Alpha and Armor Theta
DOI:
https://doi.org/10.15381/rinvp.v15i1.3684Keywords:
reliability, ordinal alpha, armor theta, polychoric correlation matrixAbstract
The present article presents a program in MS Excel format for the calculation of the coefficient Ordinal Alpha and Armor Theta, used to quantify the reliability in ordinal response items. The construction of the commandos was made based on the polychoric correlation matrix of the program FACTOR (Lorenzo & Ferrando, 2007). The suitable use of these methods and their lack of implementation in traditional statistical packages justifies its construction like a tool for the investigator in psychology, discipline in which is common the use of Pearson correlation matrix with the limitations that this carries (it assumes that the studied variable is continuous). It is discussed the use and the limitations of the tool.Downloads
Published
Issue
Section
License
Copyright (c) 2012 Sergio Domínguez Lara
![Creative Commons License](http://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
THE AUTHORS RETAIN THEIR RIGHTS:
a. The authors retain their trademark and patent rights, and also on any process or procedure described in the article.
b. The authors retain the right to share, copy, distribute, execute and publicly communicate the article published in the Journal of Research in Psychology (for example, place it in an institutional repository or publish it in a book), with acknowledgment of its initial publication in the Journal of Research in Psychology.
c. Authors retain the right to make a subsequent publication of their work, to use the article or any part of it (for example: a compilation of their work, lecture notes, thesis, or for a book), provided that they indicate the source. of publication (authors of the work, magazine, volume, number and date).