• Journal of the Korean Society of Clothing and Textiles
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• v.45 no.6
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• pp.1063-1074
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• 2021

Selfie behavior, the act of taking a picture of oneself and distributing it on social media, has become increasingly popular. Researching how to communicate with others in a social context and express hoped-for self through selfies is essential for studying consumers in the digital age. This study investigates the effects of reflected appraisals on selfie expectations and selfie behaviors. Additionally, the interaction effect of hoped-for self on the relationships between reflected appraisals and selfie expectations was tested. A web-based survey was conducted on consumers above the age of 20 who have engaged in selfie behavior in the past month. A total of 495 responses were collected from a panel of online survey firms. The survey results were analyzed using confirmatory factor analysis by AMOS 21.0 and bootstrap analysis by SPSS Macro process Model 4 and 7. Results indicated that reflected appraisals influenced selfie behavior, which was fully mediated by selfie expectations. Furthermore, the effect of reflected appraisals on selfie behavior was moderated by hoped-for self. The results will serve as a theoretical basis for understanding the psychological expectations in which selfie behavior is formed in a social context and can be applied in psychotherapy and marketing in practice.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.23 no.5
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• pp.29-34
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• 2023

Understanding individuals who consume content on OTT platforms is crucial for media operators and marketers due to the dominance of OTT services in the global media market. This study compared socio-demographic and personality characteristics of OTT non-users and users, and tested these characteristics impact on usage time of OTT services. Cross-sectional data from 9,686 respondents aged 13 and above that extracted from the 2022 Korean Media Panel Survey were analyzed, revealing significant differences between the groups in gender, age, education level, income level, employment status, openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism. Moreover, gender, age, education level, income level, employment status, conscientiousness, extraversion, and agreeableness influenced usage time of OTT service. The findings expected to be valuable data that media operators and marketing practitioners can refer to when formulating strategies that consider the characteristics of users.

• Journal of Distribution Science
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• v.17 no.3
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• pp.85-95
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• 2019

Purpose - The existing marketing studies using Social Network Analysis have assumed that network structure variables are time-invariant. However, a node's network position can fluctuate considerably over time and the node's network structure can be changed dynamically. Hence, if such a dynamic structural network characteristics are not specified for virtual goods purchase model, estimated parameters can be biased. In this paper, by comparing a time-invariant network structure specification model(base model) and time-varying network specification model(proposed model), the authors intend to prove whether the proposed model is superior to the base model. In addition, the authors also intend to investigate whether coefficients of network structure variables are random over time. Research design, data, and methodology - The data of this study are obtained from a Korean social network provider. The authors construct a monthly panel data by calculating the raw data. To fit the panel data, the authors derive random effects panel tobit model and multi-level mixed effects model. Results - First, the proposed model is better than that of the base model in terms of performance. Second, except for constraint, multi-level mixed effects models with random coefficient of every network structure variable(in-degree, out-degree, in-closeness centrality, out-closeness centrality, clustering coefficient) perform better than not random coefficient specification model. Conclusion - The size and importance of virtual goods market has been dramatically increasing. Notwithstanding such a strategic importance of virtual goods, there is little research on social influential factors which impact the intention of virtual good purchase. Even studies which investigated social influence factors have assumed that social network structure variables are time-invariant. However, the authors show that network structure variables are time-variant and coefficients of network structure variables are random over time. Thus, virtual goods purchase model with dynamic network structure variables performs better than that with static network structure model. Hence, if marketing practitioners intend to use social influences to sell virtual goods in social media, they had better consider time-varying social influences of network members. In addition, this study can be also differentiated from other related researches using survey data in that this study deals with actual field data.

• Journal of the Economic Geographical Society of Korea
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• v.18 no.1
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• pp.87-102
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• 2015

This study attempts to introduce the methodology for accounting real-time population distribution in the urban areas. For the purpose, we utilize the media user's time-space information from the media users' media diaries in the media panel survey databases. We analyze the space-time population rate for each activity space related with everyday urban lifes. Seoul has been selected as a case study area, since space-time information are relatively rich there, and thus the comparisons are available. The space-time population rates have been verified by the comparative analysis with the T-card results. We propose a real time population measurement method by combination of the space-time population rate with geographical data. The real time population of each activity space at each dong in Seoul has been calculated by multiplying the space-time population rates to the numbers of employer of three categories of activity spaces(residential, working, and commercial). By utilizing GIS, we visualize the results of two time points (3AM and 3PM) and then analyze the spacio-temporal characteristics of real time population distribution in Seoul. The Day time population distribution pattern shows strong relationships with the distribution of business and commercial activities, while the night time population distribution pattern can be explained by resident population distribution almost perfectly.

• Journal of the Korea Convergence Society
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• v.9 no.4
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• pp.271-283
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• 2018

This study aimed to investigate the effect of adolescent development environment including parenting attitude, peer relationship, and school environment on delinquent behavior, and between these relationships, the mediate effect of media environment such as computer and mobile devices. The $6^{th}$ year data from Korean Children & Youth Panel Survey (KCYPS) was used and the subjects were limited to 518 students of $7^{th}$ grade who are in their early adolescence. The result shows that adolescents under more affectionate, over involvement, and abusive parenting attitude will commit delinquent behaviors more frequently, and so does alienated youth from their friends. Parenting inconsistency and communication with friends make them use computer and cell phone more often, and excessive media usage increases adolescent's delinquent behavior. In conclusion, family environment and peer relation have influence on adolescents' delinquent behavior. Therefore, there is necessity to build development environment that prevent adolescents' delinquencies like parent education program or peer communication program for example. Also, proper education program for using computer or cell phone usage can reduce adolescents' delinquent behaviors, especially when its addictive aspect was recently issued.

• International Journal of Internet, Broadcasting and Communication
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• v.12 no.4
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• pp.137-147
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• 2020

The Corona 19 pandemic is bringing a big change in the fields of politics, economy, society, culture, environment, ecosystem, science and technology, and business management activities and advertising. Therefore, in this study, after the Corona 19 pandemic, we predicted how the characteristics of future advertising and the types of future advertising will change, and we studied countermeasures. We used, a method of analyzing related literature and the Delphi Survey method predicting the future, as a research method. As expert Panel, the subject of the Delphi technique survey, we recruited 30 experts in the field of advertising and future fields with professional insight. We study to predict how the characteristics of future advertising and the types of future advertising will change according to changes in the advertising environment such as social changes, business changes, and consumer changes after the Corona 19 pandemic. In order to cope with these changes in future advertising, it is necessary to actively prepare the advertising industry and advertising experts. Therefore, we suggested countermeasures so that the advertising industry and advertising experts can understand and respond for future advertising changes.

• The Journal of the Korea Contents Association
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• v.14 no.7
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• pp.395-406
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• 2014

This research observes how an adolescent's usage of social network services is related with media use time, and also tries to verify how a parent's participation in acting to limit usage time serves as a mediating effect. For this analysis, data from The Korean Information Society Development Institute [Korea Media Panel Research] was used, being a survey conducted on 1,572 students from primary to secondary and high schools nationwide. The subjects' gender in the final analysis was 818 male students and 754 female students. In addition, primary school students consisted of 672 individuals, 416 were from secondary and 484 from high schools. To verify the appropriateness of the model proposed in this research, analyzed through the structural equation, using social network services(SNS) was not shown to have an effect on media usage time. However, there was an indirect effect from the use of alternative activities. In addition, the parent's limitation of usage showed no effect on media use time. This research attempts to identify the reasons why parents' limiting the usage time, along with alternative activities, do not have any significant effect in reducing media usage time in this era of smart media evolution. Further, this research hopes to suggest meaningful and political implications for the nation and society to understand and resolve media addiction.

• Korean Journal of Child Care and Education Policy
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• v.12 no.3
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• pp.55-76
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• 2018

The study aims to investigate nocturnal sleep duration in 4-year-olds and relative effects of various factors including the personal factor (temperament), the familial factor (mother's employment status), the time-use factors (hours spent in childhood educare institutions, on napping in the institutions, and on using electronic media). The data of 937 4-year-olds collected by the Korea Children and Youth Panel Survey in 2012 was analyzed. Using SPSS 21.0 program, frequency analysis, descriptive statistics, Pearson's correlation analysis and hierarchical regression were conducted. The results are as follows. First, there were significant negative correlations among the personal factor, familial factor and time-use factors. Finally, the time-use factors showed largest explanatory power on variance of children's nocturnal sleep duration, followed by the familial factor. But the personal factor was not statistically significant. These results suggested that parents and childhood educare institutions need to cooperate in order for children to sleep well. It is also necessary to implement and spread the social systems to support healthy development of children.

• Journal of the Korean Society of Child Welfare
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• no.56
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• pp.221-251
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• 2016

The purpose of this study was to examine whether single-parent family status affects children's school adjustment through children's self-care and media exposure. In addition, the study investigated the mediating effects of self-protection and media exposure of children by analyzing whether single-parent family status has effects on school adjustment through self-care and media exposure of children. For this purpose, we used data of 1,916 students in the 4th grade who participated in the 4th year of the Korean Children and Youth Panel Survey (KCYPS). The results of the structural equation modeling showed that single-parent family environment not only had direct effects on the school adjustment, but also had effects on school adjustment through self-care of children. In addition, it was revealed that self-care of children influenced school adjustment through media exposure. One of the covariates, monthly income of households, did not affect the level of children's self-care. This result draws attention to the problems of the structural deficit of single-parent families. Therefore, political measures that correspond to the structural characteristics and special needs of single-parent families, along with their current financial support, are needed to improve the level of school adjustment of children from single-parent families.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.28 no.4
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• pp.416-424
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• 2018

Objective: The objective of this study was to estimate the numbers of employees occupationally exposed to noise according to their industry and size. Methods: A Delphi panel consisting of 15 occupational health experts estimated the exposure prevalence of noise in workplace. Data on Industrial Accident Compensation Insurance provided from Occupational Safety and Health Research Institute were combined to produce the exposure population. Results: In Korea, 16.0% of employees, 2,539,890 out of 15,838,926, was estimated to exposed to noise occupationally. The rate was 32.7% and 10.3% in manufacturing sector and non-manufacturing sector, respectively. The highest rate, 52.5%, was found in manufacturing industries of wood and of products of wood and cork(except furniture) and of other transport equipment. Sorted by their size of business, the rate was higher as the number of employee was larger in manufacturing sector. Conclusions: Compared to the same rate estimated in the US, 17.2%, the result of this study seems to be in a resonable range.