• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.10 no.5
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• pp.117-125
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• 2015

This study was carried out to analyze how the smartphone addiction of adolescents affect their peer relations. To achieve the study purpose, a survey was performed on students attending middle school in Seoul. For the final questionnaire of 640, factor analysis, reliability test, t-test, one-way ANOVA, and hierarchial regression analysis were executed. Major study findings are as follows: First smartphone addiction did not affect the trust in peer relations, but affected communication, anger and isolation positively; Second, the degree of smartpone addiction was found to be different in gender, school year, average daily use time and average monthly phone bill; Third, a difference regarding peer relations was found in gender, school year, average daily use time and the monthly expenses. These study findings will contribute to creating a executable and socially acceptable program that promotes good functions of smartphone and discourage negative ones, thus helping alleviate the smartphone addiction problem of adolescents.

• International Commerce and Information Review
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• v.18 no.1
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• pp.209-233
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• 2016

Today's mobile devices including smartphones are gradually taking a prominent position in many areas as portable multimedia computers and establishing a new computing paradigm. Nevertheless, it would not be easy for smartphone applications to provide users with a high level of usability under the current environment due to the physical hardware characteristics of each smartphone, which are expected to have a negative impact on the qualities of system, information, and service that smartphone applications provide. Thus, this study examined: 1) the effects of the perceived qualities of system, information, and service of smartphone applications on the perceived usability of the applications, and 2) the effect of the usability on users' individual performance with the given application. A survey was conducted and structural equation modeling (SEM) was used to analyze the data. This study found that there are significant effects of the perceived qualities of system, information, and service of smartphone applications on the perceived usability of the applications. In addition, this study also found a significant effect of the usability of samrtphone applications on the individual performance with the application.

• Journal of Radiation Protection and Research
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• v.42 no.4
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• pp.205-211
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• 2017

Background: Radiation is used in a variety of areas, but it also poses potential risks. Although radiation is often used with great effectiveness in many applications, people perceive potential risks associated with radiation and feel anxious about the possibility of radiation exposure. Various methods of measuring radiation doses have been developed, but there is no way for the general public to measure their doses with ease. Currently, many people use smartphones, which provide information about the location of an individual phone through network connections. If a smartphone application could be developed for measuring radiation dosage, it would be a very effective way to measure individuals' radiation doses. Thus, we conducted a survey study to assess the social acceptance of such a technology by the general public and their intent to use that technology to measure radiation doses, as well as to investigate whether such an intention is correlated with anxiety and attitudes toward the use of radiation. Materials and Methods: A nationwide online survey was conducted among 355 Koreans who were 20 years old or older. Results and Discussion: Significant differences were found between the genders in attitudes, perceptions of radiation risk, and fears of exposure to radiation. However, a significant difference according to age was observed only in the intent to use a smartphone dose measurement application. Attitudes towards the use of radiation exerted a negative effect on radiation risk perception and exposure anxiety, whereas attitudes towards the use of radiation, risk perception, and anxiety about exposure were found to have a positive impact on the intent to use a smartphone application for dose measurements. Conclusion: A survey-based study was conducted to investigate how the general public perceives radiation and to examine the acceptability of a smartphone application as a personal dose monitoring device. If such an application is developed, it could be used not only to monitor an individual's dose, but also to contribute to radiation safety information infrastructure by mapping radiation in different areas, which could be utilized as a useful basis for radiation research.

• 재활복지
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• v.22 no.2
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• pp.213-230
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• 2018

The study looked at the impact on the health of the spine caused by the increasing addiction to smart phones, and examine the moderating effect of adjusting spinal health according to cognitive strength. All subjects used the smartphone by measuring the diagnostic scale of the smartphone addiction, the angle of forward inclination of the cervical spine, and the amplitude variation of the cognitive Gamma-Peak of the brain waves. As a result, as the use of smart phones increases, the spine angle significantly increased (p<0.001), as cognitive strength increased, the spine angle decreased significantly (p<0.01). The cognitive strength also showed the effect of adjusting the spine angle through interaction with the degree of use of a smartphone (p<0.05). This results in a higher degree of smartphone use in lower and middle cognition strength groups, which results in a higher angle of forward tilt in the cervical spine.

• Culinary science and hospitality research
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• v.22 no.2
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• pp.234-251
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• 2016

The purpose of this study is to verify the effects of service quality and usage review of smartphone Maiib application(apps) on satisfaction, and reuse intention, convenience sampling method was employed and survey was conducted during the 15th of September, 2015 to the 30th on October as perceived by smartphone Maiib app users. Total of 312 responses were collected, and 295 usable data were used for statistical analysis excluding missing data. Descriptive analysis, factor analysis, and SEM were used to verify the hypothesis. The results from this study are as follows: first, reliability, empathy, usefulness of service quality significantly impact on Majib app satisfaction except informativeness and mobility; second, review assentation of the usage review characteristics significantly impact on Majib app satisfaction but review usefulness of the usage review characteristics significantly did not influence on Majib app satisfaction; third, smartphone Majib app satisfaction critically influences on reuse intention. Based on these results, current study can contribute to verify useful information is very important antecedent to construct the effective marketing strategy by smartphone app.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.5
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• pp.599-604
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• 2019

This study examined how the characteristics of smartphone affect the functional performance of smartphones. In particular, this study focused on an understanding of the correlation between smartphone functional factors and usage habits. Functionality is defined as 11 kinds of functional elements. The characteristics of the smartphones were defined as the hardware characteristics and the user habits characteristics. Eighty subjects were organized to collect actual data by the smartphone function. The actual time required to perform each function was measured and observed five times for each functional element. Regression analysis was performed using Minitab ver.14 by classifying the measured values of the functional elements as dependent variables, the hardware characteristics collected through the questionnaire, and the user's usage habits as 12 independent variables. Overall, it is difficult to conclude that demographic and hardware characteristics of smartphone users have a significant effect on the performance. On the other hand, the variables related to smartphone usage habits have had a great impact on the performance of smartphone tasks, and as a result, the task execution time has increased. In simple input variables or viewing variables, the effects on usability was relatively small, but in all active variables, the execution time increased 10% - 30% in all tasks except for phone calls, seeking phone numbers, and dictionary search. Thus far, if the smartphone user interface has been provided uniformly in a large and simple manner, users with various usage habits can be utilized even if the input method and task processing method are more complicated and various interface types are provided.

• Journal of Service Research and Studies
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• v.6 no.2
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• pp.37-49
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• 2016

Due to the expandability of smartphone, the mobile application market is growing explosively. However, as happens in other digital contents markets, piracy of mobile applications is prevalent. This study investigated the effects of behavioral factors on smartphone application piracy. The research model consists of factors from the theory of planned behavior model - subjective norms, attitudes toward piracy and perceptions of behavioral control. In addition, perceived consequences, past behavior and habit was included. The past behavior of PC software piracy was a meaningful predictor of habit, and habit was found to influence significantly the smartphone piracy intention. The result also shows that perceived benefit had significant effect on attitude, but both perceived legal and technical risk were not significantly related to attitude. Implications for research and practice are discussed.

• Journal of Korea Society of Industrial Information Systems
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• v.22 no.3
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• pp.49-61
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• 2017

Due to Proliferation of Mobile Devices, the Global Mobile Application (App) Market is Set to Continue its Impressive Growth Trajectory. However, like other Digital Contents, Prevalent Piracy of Smartphone Apps has Become One of the Major Obstacles to the Growth of the Newborn App Industry. The Objective of this Study is to Examine and Better Understand the Effects of Factors Which has been Known to Influence PC Software Piracy. A Research Model Explaining the Impact of Various Factors to Smartphone App Piracy Attitude and Intention is Constructed Based on Theories of Ethical Behavior. A Survey of College Students was Conducted to Test the Research Model. Findings Show that PC Software Piracy Habit and Attitude have Significant Effects on Smartphone Piracy Attitude and Intention. Beliefs Concerning Judicial and Performance Risks Due to Piracy have Little Effects on Smartphone App Piracy Attitude.

• Journal of Internet Computing and Services
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• v.13 no.6
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• pp.25-32
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• 2012

There is a growing controversy on whether and how to regulate real-time broadcasting services carried on smartphone. Some advocates strict regulation on them but the others minimal regulation. This study aims to suggest guiding rules for how to regulate broadcasting services in smartphone. For this, the study interviewed fourteen (14) executives of broadcasting companies, content providers, policy research center and regulatory body. The analysis indicates that linear channel service in smartphone is similar in form to traditional broadcasting but they should not be regulated at this moment. The supporting reasons are 1) regulating them is technically not effective, 2) they were already regulated in their primary service platforms, 3) they don't have a significant impact on a society. Consequently, the study suggests that the service providers are categorized as value added common carriers as defined in the Telecommunication Business Act.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.24 no.2
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• pp.161-166
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• 2024

The current generation of adolescents stands out as the most digitally interconnected in the annals of history, navigating an era characterized by unprecedented levels of technological connectivity. This study explored the impact of smartphone addiction on the quality of peer relationships among adolescents, with a focus on the mediating role of depression. Analyzing data from 2,288 responses of 14-year-old adolescents extracted from the 2022 cross-sectional data of the Korean Children and Youth Panel Survey 2018, research questions were tested. The findings showed that smartphone addiction among adolescents exacerbates depression, consequently leading to a deterioration in the quality of peer relationships. The results contribute to expanding scholarly understanding of the intersection between digital technology and the mental and social well-being of adolescents. Furthermore, there is a call to action for parents, teachers, counselors, policy maker, and practitioner in education institutions to establish programs that monitor and intervene in cases of excessive smartphone use among adolescents.