对偶(语法数字)
任务(项目管理)
双重目的
计算机科学
工程类
艺术
系统工程
机械工程
文学类
作者
David B. Boles,Jonathan H. Bursk,Jeffrey B. Phillips,Jason R. Perdelwitz
出处
期刊:Human Factors
[SAGE]
日期:2007-01-20
卷期号:49 (1): 32-45
被引量:74
标识
DOI:10.1518/001872007779598073
摘要
The objective was to assess the validity of the Multiple Resources Questionnaire (MRQ) in predicting dual-task interference.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.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 r(2) 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.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.The MRQ shows considerable promise as a cognitive-process-sensitive workload measure.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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