This article and any supplementary material should be cited as follows: Koester HH, Simpson RC. Method for enhancing text entry rate with single-switch scanning. J Rehabil Res Dev. 2014;51(6):995– Slideshow Project DOI: /JRRD JSP Method for enhancing text entry rate with single-switch scanning Heidi Horstmann Koester, PhD; Richard Callaghan Simpson, PhD, ATP
This article and any supplementary material should be cited as follows: Koester HH, Simpson RC. Method for enhancing text entry rate with single-switch scanning. J Rehabil Res Dev. 2014;51(6):995– Slideshow Project DOI: /JRRD JSP Aim – Establish an effective and efficient process for tailoring a scanning interface to a particular user. Relevance – Single-switch scanning is a technique used by some individuals with severe physical impairments for spoken and/or written communication. – While single-switch scanning allows people who may be unable to speak to communicate, it is a slow method of text entry.
This article and any supplementary material should be cited as follows: Koester HH, Simpson RC. Method for enhancing text entry rate with single-switch scanning. J Rehabil Res Dev. 2014;51(6):995– Slideshow Project DOI: /JRRD JSP Method Developed method for adjusting settings in single-switch scanning interface to increase user’s text entry rate. Evaluated method with 9 individuals. Adjustments included: – Revising switch type or location. – Changing scan delay. – Altering letter layout. – Changing word or letter prediction system.
This article and any supplementary material should be cited as follows: Koester HH, Simpson RC. Method for enhancing text entry rate with single-switch scanning. J Rehabil Res Dev. 2014;51(6):995– Slideshow Project DOI: /JRRD JSP Results Text entry rates improved by average of 120%. All 9 subjects increased text entry rate by ≥40%. – 5 increased text entry rate by >100%. At baseline, text entry rate averaged 1.42 words per minute. – With revised settings, text entry rate averaged 2.72 words per minute.
This article and any supplementary material should be cited as follows: Koester HH, Simpson RC. Method for enhancing text entry rate with single-switch scanning. J Rehabil Res Dev. 2014;51(6):995– Slideshow Project DOI: /JRRD JSP Conclusion Results for this approach show great potential for enhancing text entry rate achieved by single- switch scanning users. By more than doubling their text entry rate, on average, participants gained significant function by using revised settings identified using our procedure. We look forward to continued work in this area.