Psychometric Analysis of Scales for Usability Evaluation of Pointing Devices

Denis A. Coelho, Miguel L. Lourenço, Isabel L. Nunes

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Usability evaluation involves measuring user performance (effectiveness and efficiency) and registering the user’s perception of satisfaction related aspects. The paper reports on a method for assessing the satisfaction component, in computer handheld pointing devices, through a series of ratings related to three dimensions: comfort (discomfort), ease of use (per task performed) and effort (gripping, pointing, clicking). Cronbach’s alpha is obtained as an estimate of the reliability of the assessment method made up of the multiple attribute evaluation of discomfort, ease of use and effort, based on Likert scales. Results revealed high values of internal consistency within each subjective dimension. Increased internal consistency would be obtained by removing the shoulder discomfort attribute from the discomfort evaluation questionnaire, and gripping and clicking attributes from the effort evaluation questionnaire. These divergences indicate that participants perceived these attributes as fundamentally different from the rest of the attributes within the evaluation dimensions.

Original languageEnglish
Title of host publicationAdvances in Human Factors and Systems Interaction - Proceedings of the AHFE 2017 International Conference on Human Factors and Systems Interaction, 2017
EditorsI. L. Nunes
PublisherSpringer Verlag
Pages419-426
Number of pages8
ISBN (Electronic)978-3-319-60366-7
ISBN (Print)978-3-319-60365-0
DOIs
Publication statusPublished - 1 Jan 2018
EventAHFE 2017 International Conference on Human Factors and Systems Interaction, 2017 - [state] CA, United States
Duration: 17 Jul 201721 Jul 2017

Publication series

NameAdvances in Intelligent Systems and Computing
PublisherSpringer Verlag
Volume592
ISSN (Print)2194-5357

Conference

ConferenceAHFE 2017 International Conference on Human Factors and Systems Interaction, 2017
CountryUnited States
City[state] CA
Period17/07/1721/07/17

Keywords

  • Discomfort
  • Ease of use
  • Effort
  • Ergonomics
  • Human-systems integration
  • Internal consistency

Cite this

Coelho, D. A., Lourenço, M. L., & Nunes, I. L. (2018). Psychometric Analysis of Scales for Usability Evaluation of Pointing Devices. In I. L. Nunes (Ed.), Advances in Human Factors and Systems Interaction - Proceedings of the AHFE 2017 International Conference on Human Factors and Systems Interaction, 2017 (pp. 419-426). (Advances in Intelligent Systems and Computing; Vol. 592). Springer Verlag. https://doi.org/10.1007/978-3-319-60366-7_39