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

Leming Zhou1, Jie Bao1, I Made Agus Setiawan1,2

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Summary

A new mobile health (mHealth) app usability questionnaire (MAUQ) was developed and validated. This tool reliably assesses mHealth app usability, offering four versions for different app types and users.

Keywords:
mobile appsquestionnaire designreliability and validity

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Area of Science:

  • Health Informatics
  • Human-Computer Interaction
  • Software Engineering

Background:

  • Evaluating mobile health (mHealth) app usability is crucial before public release.
  • Existing questionnaires like SUS and PSSUQ were not specifically designed for mHealth apps.
  • Self-written questionnaires lack validation for mHealth app usability assessment.

Purpose of the Study:

  • To develop and validate a new, reliable, and valid questionnaire for mHealth app usability.
  • To create a tool that addresses the limitations of existing usability evaluation methods for mHealth applications.

Main Methods:

  • Developed the mHealth app usability questionnaire (MAUQ) based on existing validated questionnaires.
  • Evaluated MAUQ, SUS, and PSSUQ using two distinct mHealth apps (interactive and standalone).
  • Assessed the reliability and validity of MAUQ through psychometric analysis and correlation with SUS and PSSUQ.

Main Results:

  • The MAUQ demonstrated high internal consistency reliability across its three subscales.
  • MAUQ subscales showed strong correlations with PSSUQ subscales, and the overall MAUQ correlated well with PSSUQ and SUS.
  • Four versions of MAUQ were created for different app types (interactive/standalone) and users (patient/provider).

Conclusions:

  • The newly developed mHealth app usability questionnaire (MAUQ) is reliable and valid for assessing mHealth app usability.
  • MAUQ provides a validated tool for developers to evaluate the usability of their mHealth applications.