United States Department of Transportation
i
The Relationship Between Effort Rating and Performance in a Critical Tracking Task
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1982-10-01
[PDF-891.85 KB]
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Abstract:This report documents the results of a preliminary evaluation of a pilot Objective/ Subjective Workload Assessment Technique (POSWAT). The study employed a critical tracking task, in which 24 subjects (pilots and nonpilots) viewed an analog display of the error between operator input and system output while correcting with opposite pressure on a joystick. The purpose was to determine if there was a relationship between participant responses on a 10-point scale administered during task performance and tracking task difficulty. It is generally concluded that POSWAT used for measuring effort rating and rating delay on a regular basis during this experiment is minimally intrusive, is informative, and merits further evaluation in a cockpit environment.
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