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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Movement Time for Different Input Devices
verfasst von : L. Paige Bacon, Kim-Phuong L. Vu
Erschienen in: Engineering Psychology and Cognitive Ergonomics
Verlag: Springer Berlin Heidelberg
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Fitts’ law states that movement time can be predicted by knowing the size of a target to which a person is intending to move and the distance to be moved. The current study measured choice-movement time with three input devices commonly used in human-computer interaction tasks: response panel, computer mouse, and touch-screen. We also examined how direction of movement with the different input devices influences performance. Movement time was shorter when responses were made with the response panel than with the mouse and touch-screen. Furthermore, horizontal movement time was faster than vertical movement time, even when the size of the stimuli and distance to be moved were equal. Fitts’ law was used to estimate the slope and intercepts of the functions for each input device and dimension to determine whether the devices and dimensions had greater influence on the starting time or the speed of execution.