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Reconsidering cutoff points in the general method of empirical Q-matrix validation
dc.contributor.author | Nájera Álvarez, Pablo | es-ES |
dc.contributor.author | Sorrel, Miguel A. | es-ES |
dc.contributor.author | Abad, Francisco | es-ES |
dc.date.accessioned | 2023-09-19T11:51:53Z | |
dc.date.available | 2023-09-19T11:51:53Z | |
dc.date.issued | 2019-08-01 | es_ES |
dc.identifier.issn | 0013-1644 | es_ES |
dc.identifier.uri | https://doi.org/10.1177/0013164418822700 | es_ES |
dc.description | Artículos en revistas | es_ES |
dc.description.abstract | . | es-ES |
dc.description.abstract | Cognitive diagnosis models (CDMs) are latent class multidimensional statistical models that help classify people accurately by using a set of discrete latent variables, commonly referred to as attributes. These models require a Q-matrix that indicates the attributes involved in each item. A potential problem is that the Q-matrix construction process, typically performed by domain experts, is subjective in nature. This might lead to the existence of Q-matrix misspecifications that can lead to inaccurate classifications. For this reason, several empirical Q-matrix validation methods have been developed in the recent years. de la Torre and Chiu proposed one of the most popular methods, based on a discrimination index. However, some questions related to the usefulness of the method with empirical data remained open due the restricted number of conditions examined, and the use of a unique cutoff point (EPS) regardless of the data conditions. This article includes two simulation studies to test this validation method under a wider range of conditions, with the purpose of providing it with a higher generalization, and to empirically determine the most suitable EPS considering the data conditions. Results show a good overall performance of the method, the relevance of the different studied factors, and that using a single indiscriminate EPS is not acceptable. Specific guidelines for selecting an appropriate EPS are provided in the discussion. | en-GB |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | en-GB | es_ES |
dc.rights | es_ES | |
dc.rights.uri | es_ES | |
dc.source | Revista: Educational and Psychological Measurement, Periodo: 2, Volumen: 79, Número: 4, Página inicial: 727, Página final: 753 | es_ES |
dc.title | Reconsidering cutoff points in the general method of empirical Q-matrix validation | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.description.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.rights.holder | La editorial no permite el depósito en abierto | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | es_ES |
dc.keywords | . | es-ES |
dc.keywords | CDM, G-DINA, Q-matrix, validation, GDI | en-GB |
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