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Direct linkHolden, John G.; Choi, Inhyun; Amazeen, Polemnia G.; Van Orden, Guy – Journal of Experimental Psychology: Human Perception and Performance, 2011
Variability of repeated measurements in human performances exhibits fractal 1/f noise. Yet the relative strength of this fractal pattern varies widely across conditions, tasks, and individuals. Four experiments illustrate how subtle details of the conditions of measurement change the fractal patterns observed across task conditions. The results…
Descriptors: Performance Technology, Experiments, Statistical Analysis, Psychology
Nguyen, Frank; Klein, James D.; Sullivan, Howard – Performance Improvement Quarterly, 2005
Electronic performance support systems (EPSS) deliver relevant support information to users while they are performing tasks. The present study examined the effect of different types of EPSS on user performance, attitudes, system use and time on task. Employees at a manufacturing company were asked to complete a procedural software task and…
Descriptors: Comparative Analysis, Performance Technology, Context Effect, Manufacturing
