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논문 기본 정보

자료유형
학술저널
저자정보
Paul H. Lee (School of Nursing Hong Kong Polytechnic University) Andy C. Y. Tse (Department of Health and Physical Education Education University of Hong Kong) Cynthia S. T. Wu (School of Nursing Hong Kong Polytechnic University) Yim Wah Mak (School of Nursing Hong Kong Polytechnic University) Uichin Lee (Department of Knowledge Service Engineering Korea Advanced Institute of Science and Technology)
저널정보
대한신경정신의학회 PSYCHIATRY INVESTIGATION PSYCHIATRY INVESTIGATION 제18권 제2호
발행연도
2021.1
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95 - 100 (6page)

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Objective This study evaluated the validity of self-reported smartphone usage data against objectively-measured smartphone usage data by directly tracking the activities in the participants’ smartphone among Chinese adolescents and young adults in Hong Kong. Methods A total of 187 participants were recruited (mean age 19.4, 71.7% female) between 2017 and 2018. A smartphone usage tracking app was installed on all participants’ smartphone for 7 consecutive days. After the 7-day monitoring period, they completed a selfadministered questionnaire on smartphone usage habits. Results Although the correlation between self-reported and objectively-measured total smartphone usage time was insignificant (ρ= -0.10, p=0.18), in three out of the four usage domains were positively and significantly correlated, namely social network (ρ=0.21, p=0.005), instant messaging (ρ=0.27, p<0.001), and games (ρ=0.64, p<0.001). Participants’ self-report of the total time spent on smartphones exceeded the objective data by around 760 min per week (self-reported 1,930.3 min/wk vs. objectively-measured 1,170.7 min/ wk, p<0.001). Most of the over-reporting was contributed by the web browsing domain (self-reported 447.8 min/wk vs. objectively-measured 33.3 min/wk, p<0.001). Conclusion Our results showed large discrepancies between self-reported smartphone and objectively-measured smartphone usage except for self-reported usage on game apps.

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