The motivation for the experiment was the integration of a work station display component and a suitable data entry device. Keying performance with three candi- date keyboards was evaluated: (1) a one-handed conventional calculator keyboard, (2) a two-handed 10-key serial keyboard, and (3) a two-handed 10-key chord keyboard. Subjects were trained to criteria on a numerical data entry task and subsequently tested for performance in encoding five-digit strings. Measures of encoding response time and encoding errors showed a substantial advantage in training time for the calculator keyboard and two-handed serial keyboard over the two-handed chord keyboard.
Get full access to this article
View all access options for this article.
References
1.
BartramD.FeggouL.LeeM. (1985). An Evaluation of Four Different Keyboard Designs for Foreign Destination Coding Desks. Ergonomics Research Group, London.
2.
BartramD.LeeM. (1985). A Pilot Investigation of the Ten-Key Chord Keyboard. Ergonomic Research Group, London.
3.
RatzH.C.RitchieD.K. (1961). Operator performance on a chord keyboard. Journal of Applied Psychology, 1961, 45, 303–308.
4.
SeibelR. (1962). Performance on a five-finger chord keyboard. Journal of Applied Psychology, 46, 165–169.
5.
SeibelR (1963). Discrimination reaction time for a 1,023-alternative task. Journal of Experimental Psychology, 66, 215–226.
