Abstract
We compared a game-based experiment carried out in a lab study to crowdsourced set ups (both uninformed and informed). We investigated the device’s human resolution - the minimum size for dragging the finger onto a target on a touch screen. Participants in the lab consistently produced fewer errors than those from the crowd. For lab participants, errors significantly increased between targets of 4 mm and 2 mm in width. The uninformed crowd had too many errors to determine significant differences but the informed crowd yielded useful data and performance declined already for targets between 8 mm and 4 mm width. The smallest selectable target width for dragging for all three groups combined, was between 2 mm and 4 mm on mobile touch devices.
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Christensen, A., Pedersen, S.A., Knoche, H. (2017). Gamify HCI: Device’s Human Resolution for Dragging on Touch Screens in a Game with Lab and Crowd Participants. In: Brooks, A., Brooks, E. (eds) Interactivity, Game Creation, Design, Learning, and Innovation. ArtsIT DLI 2016 2016. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 196. Springer, Cham. https://doi.org/10.1007/978-3-319-55834-9_6
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DOI: https://doi.org/10.1007/978-3-319-55834-9_6
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