Developing an Assessment (Tool) for Touch Screen Devices

Alexandra Danial-Saad, Lorenzo Chiari

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Touch screen devices have become prevalent in our lives. Assistive technology experts working with people with disabilities face difficulty in understanding and assessing the problems experienced by individuals with disabilities in operating touch screen devices. This paper presents the processes of collecting and creating the required knowledge needed for assessing the user's skills for operating various touch screen devices, in order to develop an application for assessing the user's abilities and limitations. A six step procedure was used to collect and validate the required knowledge for the assessment from a multidisciplinary team. To determine the agreement levels between the experts, content validity was calculated. To test correlation between the experts from the different disciplines, a comparison was made between the discipline groups and their choice of specific skills/measurements. The final number of domains and skills/measurements was 15 domains and 50 skills/measurements. The result of Cronbach's α test for the final assessment questionnaire (50 skills/measurements) was 0.94, which indicates a high degree of reliability. The results of Kruskal-Wallis test showed the lack of any significant difference between agreements of the clinicians and the technicians groups, but significant differences were found between the educators and the clinicians groups. Each of the skills appearing in the final questionnaire was illustrated in a flowchart in preparation for developing the assessment (tool) for using touch screen devices.

Original languageEnglish
Title of host publicationHarnessing the Power of Technology to Improve Lives
EditorsPeter Cudd, Luc de Witte
PublisherIOS Press
Number of pages7
ISBN (Electronic)9781614997979
StatePublished - 2017

Publication series

NameStudies in Health Technology and Informatics
ISSN (Print)0926-9630
ISSN (Electronic)1879-8365

Bibliographical note

Publisher Copyright:
© 2017 The authors and IOS Press. All rights reserved.


  • assessment
  • assistive technology
  • multidisciplinary team
  • touch screen technology

ASJC Scopus subject areas

  • Health Information Management
  • Health Informatics
  • Biomedical Engineering


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