A Mobile Health Intervention for HIV Prevention Among Racially and Ethnically Diverse Young Men: Usability Evaluation.

A Mobile Health Intervention for HIV Prevention Among Racially and Ethnically Diverse Young Men: Usability Evaluation.
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DOI:
10.2196/11450
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发表时间:
2018-09-07
影响因子:
5
通讯作者:
Schnall R
Schnall R
中科院分区:
医学2区
文献类型:
--
作者:
Cho H;Powell D;Pichon A;Thai J;Bruce J;Kuhns LM;Garofalo R;Schnall R

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移动医疗(mHealth)应用程序有潜力成为提供艾滋病毒预防信息的有用模式,特别是对年轻男性(13-24岁),他们占美国新艾滋病毒诊断的21%。我们将现有的以证据为基础的面对面艾滋病毒预防课程翻译成一个便携式平台,并开发了一个移动网络应用程序:MyPEEPS mobile。本研究的目的是从专家和最终用户的角度评估MyPEEPS Mobile的可用性。我们与5位信息学专家进行了启发式评估,以确定违反可用性原则的情况,并对20名年龄在15至18岁之间的年轻人进行了最终用户可用性测试,这些年轻人分别来自纽约、纽约、伯明翰、阿拉巴马州和伊利诺伊州芝加哥,以确定他们使用该应用程序的潜在障碍。专家对确定的启发式违规行为的总体严重程度的平均得分从0.4到2.6不等(0=无可用性问题,4=可用性灾难)。总体而言,我们的最终用户成功完成了与用例场景相关的任务,并就改进MyPEEPS Mobile的可用性提供了评论/建议。最终用户对研究后系统可用性问卷评分的平均值为1.63(标准差为0.65),反映了用户对该应用的接受程度很高。专家和最终用户的评论将用于改进MyPEEPS Mobile,然后进行试点研究,评估不同性取向少数群体年轻男性在日常生活中对该应用的接受程度。
Mobile health (mHealth) apps have the potential to be a useful mode of delivering HIV prevention information, particularly for young men (13-24 years) who account for 21% of new HIV diagnoses in the United States. We translated an existing evidence-based, face-to-face HIV prevention curriculum into a portable platform and developed a mobile Web app: MyPEEPS Mobile. The purpose of this study was to assess the usability of MyPEEPS Mobile from both expert and end user perspectives. We conducted a heuristic evaluation with five experts in informatics to identify violations of usability principles and end user usability testing with 20 young men aged 15 to 18 years in New York, NY, Birmingham, AL, and Chicago, IL to identify potential obstacles to their use of the app. Mean scores of the overall severity of the identified heuristic violations rated by experts ranged from 0.4 and 2.6 (0=no usability problem to 4=usability catastrophe). Overall, our end users successfully completed the tasks associated with use case scenarios and provided comments/recommendations on improving usability of MyPEEPS Mobile. The mean of the overall Post-Study System Usability Questionnaire scores rated by the end users was 1.63 (SD 0.65), reflecting strong user acceptance of the app. The comments made by experts and end users will be used to refine MyPEEPS Mobile prior to a pilot study assessing the acceptability of the app across diverse sexual minority young men in their everyday lives.
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