Mobile fitness applications are innovating the ways in which smartphone users self-manage their h... more Mobile fitness applications are innovating the ways in which smartphone users self-manage their health. Prior research found that app functions may impact app efficacy. However, research to date has not sought to systematically investigate how different combinations of app functions impact user response to apps, especially adoption intent. This article describes two studies on mobile fitness app characteristics and user attitudes. Study One used content analysis and hierarchical cluster analysis on 98 iPhone fitness apps and identified four app clusters: "Tutor", "Recorder", "Game Companion", and "Cheerleader." Tracking was the predominant function in current market, but tracking-focused Recorder apps received lowest user ratings among all app clusters. Users favored Tutor apps that combine exercise education and tracking, and Game Companion apps that combine gamification, tracking, and social functions. Function combinations, rather than standalone functions, impact app success. Following a Reasoned Action Approach, Study Two found various effects of individual differences (age, gender, BMI, eHealth literacy, smartphone experience, function preference) on user attitude toward different fitness app types. A comparison between two studies demonstrated a mismatch between market offerings and user needs regarding app functions. Implications of results for mobile fitness app design to improve consumer health and for theories are discussed.
Mobile short-form videos on social media apps are increasingly popular. Human-Computer Interactio... more Mobile short-form videos on social media apps are increasingly popular. Human-Computer Interaction (HCI) theories may be extended to short-form video apps to understand and improve app user experience, as well as to persuade new technology-adoption. The present study examined the psychological responses and persuasive outcomes associated with short-form videos on a mobile social media app. In a 2 (low-V.S. high-level humor) X 2 (first-V.S. third-person view) between-subject experimental design, participants (n = 81) were randomly assigned one of the four sets of videos about smart homes; post-viewing, they filled out an online questionnaire. Results of ANCOVA demonstrated significant effects of videos' humor and camera view on the viewer perceptions of Immersion, Social Presence and Entertainment but not on Spatial Presence and Perceptual Realism: Humor had mixed effects on the interaction between users and the mobile app; the first-person camera view elevated viewers' Immersion, Social Presence, Entertainment. As a PROCESS mediation test showed, Social Presence mediated (by 56.78%) the indirect link between the level of humor getting from a video and the viewers' post-viewing intent to adopt the technology depicted in the video. The study demonstrated values of extending HCI theories to mobile short-form video apps. Implications were discussed in terms of using appropriate humor and camera view for improving user experience and persuading serious agenda.
Mobile fitness applications are innovating the ways in which smartphone users self-manage their h... more Mobile fitness applications are innovating the ways in which smartphone users self-manage their health. Prior research found that app functions may impact app efficacy. However, research to date has not sought to systematically investigate how different combinations of app functions impact user response to apps, especially adoption intent. This article describes two studies on mobile fitness app characteristics and user attitudes. Study One used content analysis and hierarchical cluster analysis on 98 iPhone fitness apps and identified four app clusters: "Tutor", "Recorder", "Game Companion", and "Cheerleader." Tracking was the predominant function in current market, but tracking-focused Recorder apps received lowest user ratings among all app clusters. Users favored Tutor apps that combine exercise education and tracking, and Game Companion apps that combine gamification, tracking, and social functions. Function combinations, rather than standalone functions, impact app success. Following a Reasoned Action Approach, Study Two found various effects of individual differences (age, gender, BMI, eHealth literacy, smartphone experience, function preference) on user attitude toward different fitness app types. A comparison between two studies demonstrated a mismatch between market offerings and user needs regarding app functions. Implications of results for mobile fitness app design to improve consumer health and for theories are discussed.
Mobile short-form videos on social media apps are increasingly popular. Human-Computer Interactio... more Mobile short-form videos on social media apps are increasingly popular. Human-Computer Interaction (HCI) theories may be extended to short-form video apps to understand and improve app user experience, as well as to persuade new technology-adoption. The present study examined the psychological responses and persuasive outcomes associated with short-form videos on a mobile social media app. In a 2 (low-V.S. high-level humor) X 2 (first-V.S. third-person view) between-subject experimental design, participants (n = 81) were randomly assigned one of the four sets of videos about smart homes; post-viewing, they filled out an online questionnaire. Results of ANCOVA demonstrated significant effects of videos' humor and camera view on the viewer perceptions of Immersion, Social Presence and Entertainment but not on Spatial Presence and Perceptual Realism: Humor had mixed effects on the interaction between users and the mobile app; the first-person camera view elevated viewers' Immersion, Social Presence, Entertainment. As a PROCESS mediation test showed, Social Presence mediated (by 56.78%) the indirect link between the level of humor getting from a video and the viewers' post-viewing intent to adopt the technology depicted in the video. The study demonstrated values of extending HCI theories to mobile short-form video apps. Implications were discussed in terms of using appropriate humor and camera view for improving user experience and persuading serious agenda.
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Papers by Yunwen Wang