| Age-related differences in reliance behavior attributable to costs within a human-decision aid system. | |
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MedLine Citation:
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PMID: 19292009 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: An empirical investigation was done to determine if there are age-related differences attributable to costs in reliance on a decision aid. BACKGROUND: Costs of reliance on a decision aid may affect reliance on the aid. Older and younger adults may not perceive and respond to a dynamic cost structure equally or objectively. METHOD: Sixteen older adults (65-74 years) and 16 younger adults (18-28 years) performed a counting task with an imperfect decision aid. Two types of costs were manipulated: (a) cost of error (CoE) and (b) cost of verification (CoV). The percentage of trials in which participants agreed with the decision aid and did not perform the task manually was recorded as reliance. Results: Participants decreased their reliance as the CoE increased and increased their reliance with a lower CoV; however, they tended to underrely on the decision aid. Younger adults tended to change their reliance behavior more than older adults did with the changing cost structure. CONCLUSIONS: Older and younger adults appear to interpret costs differently, with older adults being less responsive to changes in costs. Older adults may have been less able to monitor the changing costs and hence not adapt to them as well as younger adults. APPLICATION: Designers of decision aids should consider explicitly stating costs associated with reliance on the aid, as individuals may differ in how they interpret and respond to changing costs. |
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Authors:
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Neta Ezer; Arthur D Fisk; Wendy A Rogers |
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Publication Detail:
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Type: Comparative Study; Evaluation Studies; Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Human factors Volume: 50 ISSN: 0018-7208 ISO Abbreviation: Hum Factors Publication Date: 2008 Dec |
Date Detail:
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Created Date: 2009-03-18 Completed Date: 2009-04-09 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0374660 Medline TA: Hum Factors Country: United States |
Other Details:
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Languages: eng Pagination: 853-63 Citation Subset: IM; S |
Affiliation:
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School of Architecture, Georgia Institute of Technology, 247 4th St., Atlanta, GA 30332-0170, USA. neta.ezer@gatech.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Age Factors Aged Choice Behavior* Costs and Cost Analysis* Decision Support Techniques* Humans |
| Grant Support | |
ID/Acronym/Agency:
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P01 AG17211/AG/NIA NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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