Cited by 83Usability and User Interface DesignHealth Education and ValidationPsychometric Methodologies and Testing

Psychometric Properties of the Persian Language Version of the System Usability Scale

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Dianat, Iman, Ghanbari, Zahra, AsghariJafarabadi, Mohammad·2014·Tabriz University of Medical Sciences

Abstract

Background: The System Usability Scale (SUS) is a widely used self–administered instrument for evaluating the usability of a wide range of products and services. The aims of this descriptive-methodological study were to develop and investigate the psychometric properties of the Iranian version of the SUS. Methods: The study was conducted among 202 university students from the Tabriz University of Medical Sciences, Iran. Content validity was evaluated by a panel of 10 experts. Construct validity was assessed by exploratory and confirmatory factor analyses. The internal consistency and test-retest reliability were assessed by Cronbach’s alpha and Intraclass Correlation Coefficient (ICC), respectively. Additionally the feasibility of the measure was judged by ceiling and floor effect. Results: Content validity of the short form of Iranian SUS was established. Factor analyses supported the conceptual uni-dimensionality, and thus confirmed the construct validity of the measure. The internal consistency (α = 0.79) and test retest reliability (ICC = 0.96) were both approved and there was also no ceiling nor floor effect. Conclusions: The findings support the use of SUS for both practical and research settings in Iranian population.

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  1. [5]Baber C. Evaluation in human–computer interaction. In: Wilson JR, Corlett N, editors. Evaluation of Human Work. Boca Raton: Taylor & Francis;2005.
  2. [12]Lund AM. Measuring usability with the USE Questionnaire. Usability Interface: The usability SIG newsletter of the Society for Technical Communications 2001;8(2). Available at: http://www.stcsig.org/usability/newsletter/0110_measuring_with_use.html. [Google Scholar]
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Authors
Dianat, I., Ghanbari, Z., & AsghariJafarabadi, M.
Affiliations
Tabriz University of Medical Sciences (IR)
Venue
Tabriz University of Medical Sciences
Publisher
Tabriz University of Medical Sciences
Published
2014
Volume
4
Issue
1
Pages
82-9
OpenAlex
W2155442052
Cited by
83
References
24
Citations by year
2026: 5 · 2025: 7 · 2024: 7 · 2023: 11 · 2022: 5 · 2021: 12 · 2020: 9 · 2019: 6 · 2018: 6 · 2017: 4 · 2016: 9 · 2015: 1 · 2014: 1
FWCI
9.68
Type
journal article
Language
en
Open access
Locations
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Tabriz University of Medical Sciences
Topics
  • Physical Sciences › Computer Science › Human-Computer Interaction › Usability and User Interface Design
  • Social Sciences › Education › Health Education and Validation
  • Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
Keywords
System Usability Scale, Persian translation, usability evaluation, psychometric properties, content validity, construct validity, internal consistency, test-retest reliability, floor and ceiling effects, cross-cultural adaptation, Iranian population

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