Predicting dual-task performance with the multiple resources questionnaire (MRQ)
In: Human factors, Jg. 49 (2007), Heft 1, S. 32-45
Online
academicJournal
- print; 14; 3/4 p
Zugriff:
Objective: The objective was to assess the validity of the Multiple Resources Questionnaire (MRQ) in predicting dual-task interference. Background: Subjective workload measures such as the Subjective Workload Assessment Technique (SWAT) and NASA Task Load Index are sensitive to single-task parameters and dual-task loads but have not attempted to measure workload in particular mental processes. An alternative is the MRQ. Method: In Experiment 1, participants completed simple laboratory tasks and the MRQ after each. Interference between tasks was then correlated to three different task similarity metrics: profile similarity, based on r2 between ratings; overlap similarity, based on summed minima; and overall demand, based on summed ratings. Experiment 2 used similar methods but more complex computer-based games. Results: In Experiment 1 the MRQ moderately predicted interference (r = +.37), with no significant difference between metrics. In Experiment 2 the metric effect was significant, with overlap similarity excelling in predicting interference (r = +.83). Mean ratings showed high diagnosticity in identifying specific mental processing bottlenecks. Conclusion: The MRQ shows considerable promise as a cognitive-process-sensitive workload measure. Application: Potential applications of the MRQ include the identification of dual-processing bottlenecks as well as process overloads in single tasks, preparatory to redesign in areas such as air traffic management, advanced flight displays, and medical imaging.
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Predicting dual-task performance with the multiple resources questionnaire (MRQ)
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Autor/in / Beteiligte Person: | BOLES, David B ; BURSK, Jonathan H ; PHILLIPS, Jeffrey B ; PERDELWITZ, Jason R |
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Zeitschrift: | Human factors, Jg. 49 (2007), Heft 1, S. 32-45 |
Veröffentlichung: | Santa Monica, CA: Human Factors and Ergonomics Society, 2007 |
Medientyp: | academicJournal |
Umfang: | print; 14; 3/4 p |
ISSN: | 0018-7208 (print) |
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