The influence of complex working memory span task administration methods on prediction of higher level cognition and metacognitive control of response times |
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Authors: | David P McCabe |
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Institution: | (1) Washington University, 439 Psychology Building, One Brookings Drive, Campus Box 1125, Saint Louis, MO 63130, USA;(2) Kent State University, Kent, USA;(3) University of North Carolina at Greensboro, Greensboro, USA |
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Abstract: | Participants between the ages of 18 and 80 were tested on a complex working memory span task that was administered either
using a typical experimenter-paced method or using a method in which the processing component was presented at a fixed, limited-pace
presentation rate. Path analyses revealed that even after controlling for individual differences in general processing speed,
the limited-pace task predicted unique variance in episodic memory, executive functioning, and fluid intelligence, whereas
the experimenter-paced task did not. For the experimenter-paced task, slower responses on the processing component of the
task were associated with better recall, but only when individual differences in processing speed were controlled. These findings
suggest that metacognitive control of response times affects recall from working memory span tasks, as well as the relationship
between span task recall and high-level cognition. These results support resource-sharing explanations of working memory and
suggest that limiting processing times using computer pacing of complex span tasks can be an effective way to efficiently
measure working memory capacity. |
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