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Barry P. Geottl

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Publications by Barry P. Geottl (bibliography)

1991

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Geottl, Barry P. and Joseph, Jane (1991): Performance Feedback and the Optimum-Maximum Procedure. In: Proceedings of the Human Factors Society 35th Annual Meeting 1991. pp. 1486-1490.

“The present experiment examines the effects of on-line feedback in the optimum-maximum procedure proposed by Navon (1985). Twenty Clemson University students performed a dual-task consisting of two compensatory tracking tasks. Subjects performed three different dual-task combinations in which the tracking dynamics of the two tasks was varied. Each tracking task was optimized at three levels. One group received on-line feedback on both tasks, the other group did not. Results indicated modest performance trade-offs between tracking tasks. The performance trade-offs appeared to be stronger when on-line feedback was used. These data demonstrate the effects of on-line feedback on dual-task performance and suggest that conclusion concerning resource trade-offs may depend on whether performance feedback is provided.”

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