Psicothema was founded in Asturias (northern Spain) in 1989, and is published jointly by the Psychology Faculty of the University of Oviedo and the Psychological Association of the Principality of Asturias (Colegio Oficial de Psicología del Principado de Asturias).
We currently publish four issues per year, which accounts for some 100 articles annually. We admit work from both the basic and applied research fields, and from all areas of Psychology, all manuscripts being anonymously reviewed prior to publication.
María Dolores Nieto1, Francisco J. Abad1, Alejandro Hernández-Camacho1, Luis Eduardo Garrido2, Juan Ramón Barrada3, David Aguado1 and Julio Olea1
Background: Even though the Five Factor Model (FFM) has been the dominant paradigm in personality research for the past two decades, very few studies have measured the FFM adaptively. Thus, the purpose of this research was the building of a new item pool to develop a computerized adaptive test (CAT) for personality assessment. Method: A pool of 480 items that measured the FFM facets was developed and applied to 826 participants. Facets were calibrated separately and item selection was performed being mindful of the preservation of unidimensionality of each facet. Then, a post-hoc simulation study was carried out to test the performance of separate CATs to measure the facets. Results: The final item pool was composed of 360 items with good psychometric properties. Findings reveal that a CAT administration of four items per facet (total length of 120 items) provides accurate facets scores, while maintaining the factor structure of the FFM. Conclusions: An item pool with good psychometric properties was obtained and a CAT simulation study demonstrated that the FFM facets could be measured with precision using a third of the items in the pool.
Nuevo banco de ítems para evaluar adaptativamente los Cinco Grandes. Antecedentes: a pesar de que el Modelo de los Cinco Factores (MCF) ha sido el paradigma predominante durante las últimas dos décadas, muy pocos estudios han medido el MCF de forma adaptativa. El objetivo de esta investigación fue construir un nuevo banco de ítems para desarrollar un test adaptativo informatizado (TAI) para evaluar la personalidad. Método: se desarrolló un banco de 480 ítems para evaluar las facetas del MCF y se aplicó a 826 participantes. Cada faceta se calibró por separado y la selección de ítems se realizó atendiendo a que cada faceta fuese unidimensional. Después se realizó un estudio de simulación post-hoc para evaluar la eficiencia de TAIs a nivel de facetas. Resultados: el banco final estaba formado por 360 ítems con buenas propiedades psicométricas. Los resultados demostraron que la aplicación adaptativa de cuatro ítems por faceta proporciona puntuaciones precisas en las mismas, al mismo tiempo que se mantiene la estructura factorial del MCF. Conclusiones: el banco final está formado por ítems con buenas propiedades psicométricas. La aplicación adaptativa del banco permite medir la personalidad de forma eficiente a nivel de facetas utilizando una tercera parte de los ítems.
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https://doi.org/10.7334/psicothema2016.391