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Predictors of Decision Making Across the Adult Life-Span: An Individual-Differences Study
Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
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2016 (English)Conference paper, Poster (Other academic)
Abstract [en]

Age-related decline in complex cognitive tasks has been explained by changes in sensory functioning, processing speed, and working memory. However, there is still no agreement on the relative importance of these factors, and their relative role in decision making has not been investigated. In an individual-difference study on a population-based Swedish sample of adults (N = 563, age range 30-89), we disentangled the contribution of sensory decline, processing speed, and working memory measures to age-related changes in three cognitively-demanding decision-making tasks of the Adult Decision-Making Competence Battery (Resistance to Framing, Applying Decision Rules, Under/Overconfidence). Structural equation modeling showed that working memory is a significant predictor even when the influence of sensory variables, processing speed, and education (as a control for cohort effects) is taken into account. Moreover, the effects of sensory functioning and processing speed on decision making were mediated by working memory. These findings indicate that the age-related decline in complex decision-making tasks may not be entirely explained by changes in lower-level processes, highlighting the functional role of working memory processes.

Place, publisher, year, edition, pages
2016. 156-156 p.
Keyword [en]
decision making, predictors, adult life-span, individual differences
National Category
Psychology
Research subject
Psychology
Identifiers
URN: urn:nbn:se:su:diva-138883OAI: oai:DiVA.org:su-138883DiVA: diva2:1069313
Conference
International Meeting of the Psychonomic Society, Granada, Spain, May 5-8, 2016
Available from: 2017-01-27 Created: 2017-01-27 Last updated: 2017-01-27

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Del Missier, FabioMäntylä, TimoNilsson, Lars-Göran
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