Nonparametric item response theory using Stata
The Mokken scales have been described by Mokken (1971, A Theory and Procedure of Scale Analysis [De Gruyter]). They are composed of items that satisfy the three fundamental assumptions of item response theory: unidimensionality, monotonicity, and local independence. They can be considered nonparametric models in item response theory. Traces of the items and Loevinger’s H coefficients are particularly useful indexes for checking whether a set of items constitutes a Mokken scale. However, these indexes are not available in general statistical packages. We introduce Stata commands to compute them. We also describe the options available and provide examples of output. View all articles by these authors: Jean-Benoit Hardouin, Angélique Bonnaud-Antignac, Véronique Sébille View all articles with these keywords: tracelines, loevh, gengroup, msp, items trace lines, Mokken scales, item response theory, Loevinger coefficients, Guttman errors Download citation: BibTeX RISDownload citation and abstract: BibTeX RIS | |||||||||
