Abstract
Moment-to-Moment (MTM) performance measures, derived from Summary Performance Measures, provide a near instantaneous evaluation of present performance according to how it impacts overall mission (i.e., summary) performance. MTM is a training tool permitting rapid feedback of performance information to the student as deviations from reference performance occur. While the sensitivity of MTM measures allow the rapid feedback at each moment of the task, experimental results suggest that such feedback should be carefully restricted to enhance training efficiency. Obviously, the feedback must use a mode (input channel) that is non-disruptive to the current task, but also the feedback should be modulated to focus on a portion of the total mission (presumably the part where present performance most seriously degrades overall mission performance). Further the trainee should be informed of that portion of the mission keyed to training feedback.
This paper describes a research program in which a MTM performance measure is used to generate training feedback signals where the feedback is keyed to the part of the mission resulting in the least desirable performance. But the time duration of feedback is limited to a fixed percentage of the total mission time. The impact of MTM feedback in improving training efficiency vs. feedback of only the total (summary) task performance score is presented along with a description of the method used to produce the MTM measure and the feedback modulation system.
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