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dc.contributor.authorHamblin, Christopher James
dc.contributor.authorBohan, Michael
dc.contributor.authorChaparro, Alex
dc.identifier.citationHamblin, C.J., Bohan, M., &C Chaparro, A. (2003). The effects of perceptual grouping on text entry performance. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 47(13), 1703-1707.
dc.identifier.otherdoi: 10.1177/154193120304701323
dc.descriptionClick on the DOI link below to access the article (may not be free).
dc.description.abstractOne of the primary challenges confronting designers of mobile computing devices is the issue of efficient text entry. One potential solution is to group multiple letters onto single keys, similar to the T9 keyboard currently used on telephones. However, grouping multiple letters onto single keys may make the visual search for individual letters within the grouped-key more difficult analogous to Navon's (1977) "can't see the trees for the forest" effect. Two experiments examined the effects of perceptual grouping on soft keyboard transcription rates. Results from Experiment 1 showed significantly slower transcription rates for QWERTY keyboards with grouped keys (p = .001). Results from Experiment 2 showed various levels of perceptual interference due to the different Gestalt grouping effects (p = .003). These results indicate that perceptual grouping can negatively affect text entry performance, and placing multiple letters onto single keys reduces the speed at which users can transcribe words.
dc.relation.ispartofseriesProceedings of the Human Factors and Ergonomics Society Annual Meeting
dc.titleThe effects of perceptual grouping on text entry performance
dc.typeConference paper
dc.rights.holderHuman Factors and Ergonomics Society, Inc.

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