• Journal of the Korea Convergence Society
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• v.9 no.12
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• pp.195-205
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• 2018

The purpose of this study was to investigate the effects of perceived risk, perceived benefits and trust on the intention of continuous use of Internet primary banks in order to explore ways for stable establishment and growth of Internet primary banks. In addition, the mediating effects of trust on the relationships among perceived benefits, perceived risk and intention of continuous use were tested. Through an online survey, 457 people aged 20-59 years who had experience of using an Internet primary bank within the last 3 months were selected as the subjects for this study. First, perceived benefits, perceived risk, and trust were found to have a significant influence on the intention of continuous use of Internet primary banks. Second, the partial mediation effect of trust on the relationships of ease of use and functional risk with intention of continuous use was confirmed, and the full mediation effect of trust on the relationships of attractiveness and innovativeness with intention of continuous use was verified. In order to achieve sustainable growth, Internet primary banks are required to increase major benefits of customers and lower the risk levels to build firm customer trust.

• Human Ecology Research
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• v.57 no.1
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• pp.15-26
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• 2019

This study showed that the association between solidarity and conflict is mediated by the communication of grandmothers and an adult child at the dyadic level. The common fate model (CFM) was designed to model mediation effects at the level of dyads. Participants consisted of 297 grandmother dyads and their adult child who were rearing preschool-aged grandchildren in Seoul and Gyeonggi-do. For analysis at the dyadic level, grandmothers and adults responded to the same questionnaire on the same variables. SPSS 23.0 performed descriptive statistical analysis and correlation analysis. The structural equation model (SEM) was estimated with AMOS 23.0. We tested the mediation model using the maximum likelihood method. Model fit index used the chi-square statistic, the incremental fit index (IFI), the comparative fit index (CFI), the root mean square error of approximation (RMSEA). The statistical significance of the indirect effect was examined using a bootstrapping procedure. The results are as follows. First, in the CFM, the direct effect between solidarity and conflict was significant. Therefore, the higher the solidarity, the lower conflict of grandmothers and an adult child. Second, the association between solidarity and conflict is mediated by communication at the dyadic level. Based on the results of this study, we discussed ways to strengthen the capacity of co-parenting between grandmothers and an adult child.

• The Mathematical Education
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• v.60 no.1
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• pp.1-19
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• 2021

This study investigates students' conceptions of fractions from a measurement approach while providing a technological environment designed to support students' understanding of the relationships between quantities and adjustable units. 13 third-graders participated in this study and they were involved in a series of measurement tasks through task-based interviews. The tasks were devised to investigate the relationship between units and quantity through manipulations. Screencasting videos were collected including verbal explanations and manipulations. Drawing upon the theory of semiotic mediation, students' constructed concepts during interviews were coded as mathematical words and visual mediators to identify conceptual profiles using a fine-grained analysis. Two students changed their strategies to solve the tasks were selected as a representative case of the two profiles: from guessing to recursive partitioning; from using random units to making a relation to the given unit. Dragging mathematical objects plays a critical role to mediate and formulate fraction understandings such as unitizing and partitioning. In addition, static and dynamic representations influence the development of unit concepts in measurement situations. The findings will contribute to the field's understanding of how students come to understand the concept of fraction as measure and the role of technology, which result in a theory-driven, empirically-tested set of tasks that can be used to introduce fractions as an alternative way.

• Education of Primary School Mathematics
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• v.5 no.1
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• pp.13-20
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• 2001

Interaction through communication plays critical role in the mathematics learning in the sociocultural perspectives. The communication make the students construct shared knowledge, and also plays a role of mediation in making meaning. So, we have to consider sociocultural eprspectives in design of the mathematics leaning using computer. While Computer Assisted Instruction was the one-directional teaching program which proceed from computer to students, mathematics leaning using computer in the sociocultural perspectives have to consider two-directional instruction that proceed from computer to students as well as from students to computer. This interactional activity is the critical thing in the mathematics learning using computer.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.12 no.5
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• pp.79-87
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• 2017

The previous studies of online entrepreneurship education were conducted only on the effect of education on actual entrepreneurship, but did not analyze the effectiveness of education. In this study, beyond of limits of previous studies, we investigated the effect of social presence on learning expectancy and educational satisfaction. In addition, we examined the influence of learning expectation on the relationship between social presence and educational satisfaction. For the research hypothesis test, we conducted a questionnaires survey on 189 graduate students who taken online courses related to entrepreneurship, hypothesis and questionnaires were made based on the research hypotheses precedent theories. And educational satisfaction was divided into operational satisfaction and content satisfaction. As a results of the analysis using the structural equation model, social presence has a positive effects on learning expectancy. Next, the learning expectancy has a positive effects on the operational satisfaction and the content satisfaction. Finally, when social presence affects operational satisfaction, learning expectation has a complete mediation effects and content satisfaction has a partial mediation effects. The implications of the results of this study were as follows. There was a need for a way to interacted with learners when conducted online entrepreneurial education. When increased the satisfaction level of the learning operation, it is necessary to reduced the burden of learners and raised the expectancy.

• Journal of The Korean Association of Information Education
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• v.21 no.2
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• pp.247-257
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• 2017

The aims of this study are to analyse how smartphone affects (1)self-control and (2)self-directed learning ability of middle-school students, and also affect (3)self-directed learning ability by mediation of self-control. For these aims, this study used Seoul Educational Longitudinal Study panel data which was conducted in 2015, and conducted multi-group comparisons using structural equation modeling analyses. In analysis of smartphone effects, the use of smartphone of students was divided into 'for entertainment' and 'for learning', and also their first time of smartphone use was considered(elementary vs. middle school). Results indicated that while 'smarphone use for entertainment' was related negatively with self-control and self-directed learning ability of students, 'smarphone use for learning' was related positively, regardless of when smartphone was first used. Also, while 'smarphone use for entertainment' was related negatively with self-directed learning ability by mediation of self-control, 'smarphone use for learning' was related positively.

• Journal of the Korean Society of Costume
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• v.65 no.3
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• pp.104-116
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• 2015

This research has examined the relationship among film interest, clothing involvement, attitude towards ppl, preference for fashion products, and purchasing intention. In april 2014, 210 university students in Seoul and Incheon filled out a survey. Frequency analysis, k-cluster analysis, t-test, anova, duncan's multiple range test, regression, and mediation regression analysis were used to analyze. Students who were more interested in film were higher in clothing involvement. Clothing involvement had larger influence on preference for fashion products and purchasing intention than film interest. Students highly involved in clothing had more positive attitude towards ppl, preference for fashion products and purchasing intentions. Clothing involvement, attitude towards ppl and preference for fashion products directly influenced purchasing intention. The preference for fashion products had the largest influence on purchasing intention. The preference for fashion products and attitude towards ppl had mediation influences between clothing involvement and purchasing intention.

• Korean Journal of Childcare and Education
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• v.13 no.6
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• pp.163-179
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• 2017

Objective: The purposes of this study are to test a direct effect of mother-child interaction and to examine the mediating effect of children's smart media use on a child's sleeping hours. Methods: We analyzed the longitudinal data of 1,494 children from the $6^{th}$ panel study of Korean children collected by the Korea Institute of Child Care and Education in 2013, which examined 5-year-old children. The main analysis method was Structural Equation Modeling (SEM). Results: The study results showed that mother-child interaction had a direct effect on the child's sleeping hours. Children's smart media use also directly influenced the child's sleeping hours. In regard to mediation, the results revealed that children's smart media use mediated the relationship between mother-child interaction and child's sleeping hours. Conclusion/Implications: Bidirectional mother-child interaction and the degree of smart media use played an important role in children's sleeping hours. This study suggests policy and practical implications in order to retain children's healthy sleeping hours.

• Journal of Fisheries and Marine Sciences Education
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• v.27 no.6
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• pp.1569-1592
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• 2015

The purpose of this study was to examine educational performance of key competencies in the situation by introducing NCS of junior college. And also, this study aimed at investigating the effects of individual characteristics on the relationship between characteristics of key competencies based on NCS and educational transfer. Data was collected from samples of 389 freshman and sophomore students who took the classes about communication skills and problem solving skills of key competencies. All of the students major in secretarial science. Based on the collected data, this study analyzed structural equating model, using AMOS Graphics. The result of analysis showed that there was a significant positive effect of educational training characteristics on educational transfer in some research models planned in this study. The findings in analysis of mediating effect showed that there was a full mediation effect of determinacy of career attitude maturity, and there was a partial mediation effect of readiness of career attitude maturity. Based on the result, this study proposed theoretical and practical ways considering individual characteristics for establishment and development of NCS.

• Journal of Environmental Science International
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• v.24 no.12
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• pp.1639-1647
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• 2015

The purpose of this study is to observe the influence mother's pro-environmental consumption behavior have on the adolescents' environment-friendly attitudes and adolescents' pro-environmental consumption behavior. Also by examining the variable relation, the study scopes out the effectiveness of environmental experience. For the analysis, high school students in Korea were gathered from online and multiple regression analysis, and Baron and Kenny mediation analysis were conducted among a total of 521 surveys. The main findings are as follows: First, mother's pro-environmental consumption behavior were proven to be essential factors that have influence on the adolescents' environment-friendly attitudes. Second, mother's pro-environmental consumption behavior were proven to be essential factors that have influence on the adolescents' pro-environmental consumption behavior. Third, mediating effect of adolescents' environment-friendly attitudes was verified in the relationship between mother's and adolescent's pro-environmental consumption behavior. The findings suggest the importance of adolescents' environment-friendly attitudes and improve adolescent's pro-environmental consumption behavior by having practice mother's pro-environmental consumption behavior.