The Complexities of Complex Span: Explaining Individual Differences in Working Memory in Children and Adults

Donna Bayliss, C. Jarrold, D.M. Gunn, A.D. Baddeley

Research output: Contribution to journalArticle

298 Citations (Scopus)

Abstract

Two studies are presented that investigated the constraints underlying working memory performance in children and adults. In each case, independent measures of processing efficiency and storage capacity are assessed to determine their relative importance in predicting performance on complex span tasks, which measure working memory capacity. Results show that complex span performance was independently constrained by individual differences in dornain-general processing efficiency and domain-specific storage capacity. Residual variance, which may reflect the ability to coordinate storage and processing, also predicted academic achievement. These results challenge the view that complex span taps, a limited-capacity resource pool shared between processing and storage operations. Rather, they are consistent with a multiple-component model in which separate resource pools support the processing and storage functions of working memory. (PsycINFO Database Record (c) 2010 APA, all rights reserved)
Original languageEnglish
Pages (from-to)71-92
JournalJournal of Experimental Psychology: General
Volume132
Issue number1
DOIs
Publication statusPublished - 2003

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