ERIC Number: EJ733648
Record Type: Journal
Publication Date: 2004-Jul
Mapping the Developmental Constraints on Working Memory Span Performance
Bayliss, Donna M.; Jarrold, Christopher; Baddeley, Alan D.; Gunn, Deborah M.; Leigh, Eleanor
Developmental Psychology, v41 n4 p579-597 Jul 2005
This study investigated the constraints underlying developmental improvements in complex working memory span performance among 120 children of between 6 and 10 years of age. Independent measures of processing efficiency, storage capacity, rehearsal speed, and basic speed of processing were assessed to determine their contribution to age-related variance in complex span. Results showed that developmental improvements in complex span were driven by 2 age-related but separable factors: 1 associated with general speed of processing and 1 associated with storage ability. In addition, there was an age-related contribution shared between working memory, processing speed, and storage ability that was important for higher level cognition. These results pose a challenge for models of complex span performance that emphasize the importance of processing speed alone.
Descriptors: Memory, Developmental Psychology, Children, Cognitive Ability, Cognitive Mapping, Cognitive Development, Developmental Stages, Age
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A