An empirical study of typing rates on mini-QWERTY keyboards

Authors:
Edward Clarkson;James Clawson;Kent Lyons;Thad Starner
Affiliations:
Georgia Institute of Technology, Atlanta, GA;Georgia Institute of Technology, Atlanta, GA;Georgia Institute of Technology, Atlanta, GA;Georgia Institute of Technology, Atlanta, GA
Venue:
CHI '05 Extended Abstracts on Human Factors in Computing Systems
Year:
2005

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Abstract

We present a longitudinal study of mini-QWERTY keyboard use, examining the learning rates of novice mini-QWERTY users. The study consists of 20 twenty-minute typing sessions using two different-sized keyboard models. Subjects average over 31 words per minute (WPM) for the first session and increase to an average of 60 WPM by the twentieth. Individual subjects also exceed the upper bound of 60.74 WPM suggested by MacKenzie and Soukoreff's model of two-thumb text entry [5]. We discuss our results in the context of this model.