Brian D. Hall
ABSTRACT
This double-blind, controlled, counter-balanced experiment examines the effects of system delay on users. Sixty-one participants completed 8 computerized tasks under 4 varied levels of time delay (from 500ms to 2000ms), with time and accuracy recorded. Participants rapidly adapted to system delay, committing neither errors of omission nor commission more frequently due to slowed system response. Time to finish tasks increased with system delay, but users were only slowed down by approximately as much time as was introduced by system delay itself. Implications for estimating the potential value of reduced system delay are discussed, as well as study limitations and suggestions for future work.
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Cross Ref
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Index Terms
- User Adaptability to System Delay
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