Daniel Plaisted

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An experienced user of the Twiddler, a one--handed chording keyboard, averages speeds of 60 words per minute with letter--by--letter typing of standard test phrases. This fast typing rate coupled with the Twiddler's 3x4 button design, similar to that of a standard mobile telephone, makes it a potential alternative to multi--tap for text entry on mobile(More)
Previously we demonstrated that after 400 minutes of practice, ten novices averaged over 26 words per minute (wpm) for text entry on the Twiddler one–handed chording keyboard, outperforming the multi–tap mobile text entry standard. Here we present a study that examines expert chording performance. Our five participants achieved an average rate of 47 wpm(More)
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