期刊
BEHAVIOR RESEARCH METHODS
卷 54, 期 2, 页码 780-794出版社
SPRINGER
DOI: 10.3758/s13428-021-01645-y
关键词
Working memory; Processing; Storage; Individual differences; Complex span task
Individual differences in working memory capacity (WMC) are related to performance in domains outside of WM. Researchers found that processing performance is associated with WMC in complex span WM tasks. Including processing task performance measures may provide a better understanding of the relationships between complex span task performance and performance in disparate domains of cognition.
Individual differences in working memory capacity (WMC) have long been known to relate to performance in domains outside of WM, including attentional control, long-term memory, problem-solving, and fluid intelligence to name a few. Complex span WM tasks, composed of a processing component and a storage component, are often used to index WMC in these types of investigations. Capacity estimates are derived from performance on the storage component only, while processing performance is often largely ignored. Here, we explore the relationship between processing performance and WMC in a large dataset for each of three complex span tasks to better characterize how the components of these tasks might be related. We provide evidence that enforcing an 85% or better accuracy criterion for the processing portion of the task results in the removal of a disproportionate number of individuals exhibiting lower WMC estimates. We also find broad support for differences in processing task performance, characterized according to both accuracy and reaction time metrics, as a function of WMC. We suggest that researchers may want to include processing task performance measures, in addition to capacity estimates, in studies using complex span tasks to index WMC. This approach may better characterize the relationships between complex span task performance and performance in disparate domains of cognition.
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