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La Memoria de Trabajo es un sistema de memoria activo responsable del almacenamiento temporal y procesamiento simultaneo de informacion. El objetivo del trabajo es presentar datos de las propiedades psicometricas de un instrumento global de Memoria de Trabajo: Serie de Dibujos. Se les administro a 210 ninos de 6, 8 y 11 anos de la Ciudad Autonoma de Buenos Aires, Argentina, Serie de Dibujos, la Bateria Automatizada de Memoria de Trabajo y el subtest Cubos de la Escala de Inteligencia para ninos de Wechsler. Se estimo la consistencia interna del instrumento a traves del coeficiente Alpha de Cronbach y se evaluaron evidencias de validez convergente y discriminante a traves de un analisis de correlacion y de un analisis factorial exploratorio. Los resultados indicaron que Serie de Dibujos es un instrumento valido y confiable para medir de manera global la Memoria de Trabajo en ninos de nuestro medio. Validity and Reliability of a Working Memory Task for Children: Picture Span: Working Memory is an active memory system responsible of simultaneous storage and concurrent processing of information. The aim of this work is to present the psychometric properties of a global Working Memory task: Picture Span. Picture Span along with the Automated Working Memory Assessment battery Block Design subtest of the Wechsler Intelligence Scale for Children were administered to 210 children of 6-, 8- and 11-years old from Buenos Aires City, Argentina. Internal consistency using Cronbach’s Alpha was estimated and evidence in favor of convergent and discriminate validity was assessed through a correlation analysis and a posterior exploratory factor analysis. Results showed that Picture Span is a valid and reliable instrument to globally assess Working Memory in children within our context. Palabras claves: Memoria de Trabajo; Serie de Dibujos; Validacion; Ninos.

Validez y Confiabilidad de Una Prueba de Memoria de Trabajo Para Niños: Serie de Dibujos