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E. Grose

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Publications by E. Grose (bibliography)

1989

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Hancock, P. A., Robinson, M. A., Chu, A. L., Hansen, D. R., Vercruyssen, M., Grose, E. and Fisk, A. D. (1989): The Effects of Practice on Tracking and Subjective Workload. In: Proceedings of the Human Factors Society 33rd Annual Meeting 1989. pp. 1310-1314.

“Six college-age male subjects performed one hundred, two-minute trials on a second-order tracking task. After each trial, subjects estimated perceived workload using both the NASA TLX and SWAT workload assessment procedures. Results confirmed an expected performance improvement on the tracking task which followed traditional learning curves within the performance of each individual. Perceived workload also decreased for both scales across trials. While performance variability significantly decreased across trials, workload variability remained constant. One month later, the same subjects returned to complete the second experiment in the sequence which was a retention replication of the first experiment. Results replicated those for the first experiment except that both performance error and workload were at reduced overall levels. Results in general affirm a parallel workload reduction with performance improvement, an observation consistent with a resource-based view of automaticity.”

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