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Fig. 14 | Cognitive Research: Principles and Implications

Fig. 14

From: How to optimize switch virtual keyboards to trade off speed and accuracy

Fig. 14

Properties of optimal keyboards. Properties of optimal keyboards for different cursor paths as a function of the acceptable error rate. a A comparison of average entry time indicates that the linear keyboard is predicted to perform best for most acceptable error rates. b The cursor duration of the optimal keyboard for each cursor path indicates that the linear keyboard uses a nearly constant cursor duration at the minimum possible value of 0.01 seconds. c All keyboards except for the linear keyboard trade off accuracy for speed by producing a predicted average error rate that is close to the acceptable error rate

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