Friday, Jul 24, 2026 The claims desk. Receipts included. POWERED BY LENZ
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HEALTH

The Claim

Questionnaire-based mHealth usability instruments such as the Mobile App Usability Questionnaire (MAUQ), the Mobile App Rating Scale (MARS), and the Health Information Technology Usability Evaluation Scale (Health-ITUES) measure perceived usability but do not directly capture specific interaction errors during task performance.

The Short Version

The evidence supports the core distinction. MAUQ, MARS, and Health-ITUES are questionnaire-based rating tools that assess perceived usability or related app-quality dimensions through subjective responses, not by observing and recording concrete errors during tasks. Some items mention mistakes or interaction design, but that is still retrospective judgment rather than direct error capture.

Caveats

  • MARS is broader than a pure usability scale; it also rates app-quality dimensions such as engagement, aesthetics, and information quality.
  • Some questionnaire items address error recovery or interaction design, but they remain self-reported or rater-scored perceptions rather than observed error counts or logs.
  • Direct detection of specific interaction errors usually requires usability testing, task analysis, screen recording, telemetry, or eye-tracking methods.

The Receipts

  1. Health Information Technology Usability Evaluation Scale (Health-ITUES) for Usability Assessment of Mobile Health Technology: Validation Study - PMC

    pmc.ncbi.nlm.nih.gov

  2. The mHealth App Usability Questionnaire (MAUQ): Development and Validation Study

    pmc.ncbi.nlm.nih.gov

  3. Mobile App Rating Scale: A New Tool for Assessing the Quality of Health Mobile Apps

    mhealth.jmir.org

  4. Validation of the Mobile Application Rating Scale (MARS) - PMC

    pmc.ncbi.nlm.nih.gov

  5. Health Information Technology Usability Evaluation Scale (Health-ITUES) for Usability Assessment of Mobile Health Technology: Validation Study - PMC

    JMIR mHealth and uHealth

  6. Mobile App Rating Scale: A new tool for assessing the quality of health mobile apps.

    JMIR mHealth and uHealth

  7. The most used questionnaires for evaluating satisfaction, usability, acceptance, and quality outcomes of mobile health - PMC

    mHealth

  8. Evaluating the Usability of mHealth Apps: An Evaluation Model Based on Task Analysis Methods and Eye Movement Data - PMC

    MDPI

  9. Health Information Technology Usability Evaluation Scale (Health-ITUES) and User-Experience Questionnaire (UEQ) for 3D Intraoperative Cognitive Navigation (ICON3D TM ) System for Urological Procedures - MDPI

    MDPI

  10. MARS - The Mobile Application Rating Scale - UX test tools

    uxtesttools.com

+ 6 more sources — see the full list on Lenz

Filed Under

Health Information Technology Usability Evaluation ScaleMobile App Rating ScaleMobile App Usability Questionnaire