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An investigation of the 'von Restorff' phenomenon in post-test workload ratingsThe von Restorff effect in post-task ratings of task difficulty is examined. Nine subjects performed a hovercraft simulation task which combined elements of skill-based tracking and rule- and knowledge-based process control for five days of one hour sessions. The effects of isolated increases in workload on rating of task performance, and on the number of command errors and river band hits are analyzed. It is observed that the position of the workload increase affects the number of bank hits and command errors. The data reveal that factors not directly related to the task performance influence subjective rating, and post-task ratings of workload are biased.
Document ID
19860049069
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Thornton, D. C.
(Toronto, University Canada)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Subject Category
Behavioral Sciences
Accession Number
86A33807
Funding Number(s)
CONTRACT_GRANT: NAGW-429
Distribution Limits
Public
Copyright
Other

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