Zayim Neşe, Yildiz Hasibe, Yüce Yılmaz Kemal
Department of Biostatistics and Medical Informatics, Akdeniz University, Turkey.
Department of Computer Engineering, Alanya Alaaddin Keykubat University, Turkey.
Stud Health Technol Inform. 2023 Oct 20;309:262-266. doi: 10.3233/SHTI230793.
Mobile Personal Health Records (mPHRs), which make it possible to track and manage users' health information, can be an important aid in improving people's health. Despite its potential benefits, poor usability of systems can hinder the adoption and use of mPHRs. This study aims to evaluate the usability of a mobile health application in terms of perceived cognitive workload and performance. The cognitive workload experienced by 30 volunteers (15 experienced and 15 inexperienced), was measured while performing the given tasks with the NASA-Task Load Index (NASA-RTLX) scale, and the duration of the fulfillment of the tasks by eye tracking device. While there was no significant difference between the two user groups in the completion time of the tasks, a significant difference was found in the perceived cognitive load. "Making an appointment", which could take much longer to complete than other tasks, resulted in the highest cognitive load for all users. Further usability research using think-aloud protocols and user interviews could provide insights into design improvements for reducing cognitive load and enhancing performance.
移动个人健康记录（mPHR）能够跟踪和管理用户的健康信息，对改善人们的健康状况具有重要帮助。尽管具有潜在益处，但系统的可用性差可能会阻碍mPHR的采用和使用。本研究旨在从感知认知工作量和性能方面评估一款移动健康应用程序的可用性。使用美国国家航空航天局任务负荷指数（NASA-RTLX）量表，在30名志愿者（15名有经验的和15名无经验的）执行给定任务时测量其经历的认知工作量，并通过眼动追踪设备测量任务完成的持续时间。虽然两个用户组在任务完成时间上没有显著差异，但在感知认知负荷方面存在显著差异。“预约”比其他任务完成时间长得多，导致所有用户的认知负荷最高。使用出声思维协议和用户访谈进行的进一步可用性研究可以为减少认知负荷和提高性能的设计改进提供见解。
