Angelo J, Deterding C, Weisman J
Occupational Therapy, University at Buffalo, New York.
Assist Technol. 1991;3(2):43-9. doi: 10.1080/10400435.1991.10132181.
The keyboard is the most commonly used input method for interfacing with computers. When using a keyboard is not possible, alternative computer input methods are needed. Three methods using head control are: Head Master by Prentke Romich, Free Wheel by Pointer Systems, and LROP by Words+. The purpose of this study was to compare these three methods for speed and accuracy using a single subject design for nine individuals with disabilities. Visual inspection of the data revealed that subjects obtained higher scores when using Head Master and LROP than Free Wheel. As a follow-up test, an analysis of variance test for repeated measures showed no difference between using Head Master and LROP but did show a significant difference between Head Master and Free Wheel, and LROP and Free Wheel.
键盘是与计算机交互时最常用的输入方法。当无法使用键盘时，就需要其他计算机输入方法。三种使用头部控制的方法分别是：Prentke Romich公司的Head Master、Pointer Systems公司的Free Wheel以及Words+公司的LROP。本研究的目的是采用单受试者设计，对九名残疾人士使用这三种方法的速度和准确性进行比较。对数据的直观检查显示，受试者使用Head Master和LROP时的得分高于Free Wheel。作为后续测试，重复测量方差分析表明，使用Head Master和LROP之间没有差异，但Head Master与Free Wheel之间以及LROP与Free Wheel之间存在显著差异。
