Comparing three head-pointing systems using a single subject design.
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.
Angelo
J
J
Occupational Therapy, University at Buffalo, New York.
Deterding
C
C
Weisman
J
J
D000328:Adult; D003143:Communication Devices for People with Disabilities; D016287:Computer Peripherals; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012984:Software