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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).
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Psicothema, 2008. Vol. Vol. 20 (nº 4). 780-785




Short-term storage and mental speed account for the relationship between working memory and fluid intelligence

Miguel Burgaleta and Roberto Colom

Universidad Autónoma de Madrid

Here, we explore the role of short-term storage, mental speed, processing efficiency, and controlled attention to account for the relationship between working memory and fluid intelligence. Ninety-six secondary school students were assessed by several tests and tasks to tap these psychological constructs. Specifically, each construct was measured by two tests or tasks from different content domains (verbal-numerical and spatial). The findings show that short-term storage and, to a lesser degree, mental speed, account for the relationship between working memory and fluid intelligence. Further, processing efficiency and controlled attention do not play a significant role.

El almacenamiento a corto plazo y la velocidad mental dan cuenta de la relación entre memoria de trabajo e inteligencia fluida. Se explora el papel del almacenamiento a corto plazo, la velocidad mental, la eficiencia de procesamiento y el control de la atención en la relación de la memoria de trabajo con la inteligencia fluida. Se evaluó a noventa y seis estudiantes de Enseñanza Secundaria mediante varios tests y tareas diseñadas para valorar los constructos psicológicos señalados. Concretamente, cada constructo se valoró con dos tests o tareas de distintos dominios de contenido (numérico-verbal y espacial). Los resultados indican que el almacenamiento a corto plazo, y, en menor medida, la velocidad mental, explican la relación de la memoria de trabajo con la inteligencia fluida. Además, la eficiencia de procesamiento y el control de la atención no juegan un papel significativo en esa relación.

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