• Journal of Digital Convergence
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• v.9 no.4
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• pp.115-130
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• 2011

The purpose of this study is to examine the effect of career plateau(structural and content plateau) on IT service technical engineers' career satisfaction and career withdrawal intention. Survey data were collected from 161 IT service technical engineers. The results indicated that structural and content plateau were negatively related to career satisfaction, and content plateau was positively related to career withdrawal intention, but not structural plateau. In addition, the results of hierarchical multiple regressions indicated that content plateau had stronger effect on career satisfaction and career withdrawal intention then content plateau.

• Korean Journal of Childcare and Education
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• v.14 no.4
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• pp.109-126
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• 2018

Objective: The purpose of the present study was to explore the moderating role of children's verbal ability in the relation between shyness and teacher-child relationships. Methods: Participants were 200 children, their mothers, and their kindergarten teachers. Children's shyness was rated by their mothers and teachers, and children's verbal ability was measured using the language problem solving ability test. And teachers completed a rating scale in order to examine the teacher-child relationship. The collected data were analyzed using correlations and hierarchical multiple regressions. Results: Children's shyness had a negative relation to close teacher-child relationships. And child's verbal ability was significantly related to teacher-child relationships. Hierachical regression analysis indicted to the interaction of child's shyness and verbal ability predicted close teacher-child relationships. Children's shyness, those who demonstrated the lowest level of child's verbal ability, was significantly associated with close teacher-child relationships. Children's shyness had no significant relation to close teacher-child relationships, especially for the highest level of children's verbal ability. Conclusion/Implications: We suggested that verbal ability training for children might be valuable for shy children in order to buffer the link between shyness and teacher-child relationships.

• Korean Journal of Child Studies
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• v.34 no.3
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• pp.113-128
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• 2013

This study examined the effects of academic stress and response styles on depression in adolescents, focusing on the moderating role of responses styles. The subjects of this study comprised 419 high school students (185 boys and 234 girls) in two high schools. In order to measure the level of depression, the CES-D Scale (Radloff, 1977) was used. Academic stress and response styles were assessed by the Academic Stress Scale for adolescents (Lee & Kim, 2000) and the Response Styles Questionnaire (Kim, 1991) respectively. The data were analyzed by means of descriptive statistics, t-test, and multiple regressions. The results indicated that for both boys and girls, the levels of academic stress and rumination response style increased the level of depression, whereas the distraction response style decreased the level of depression. Second, both the rumination and distraction styles for girls moderated the effect of academic stress on their depression. On the contrary, there was no moderating effect of the response styles for boys.

• The Journal of Korean Academic Society of Nursing Education
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• v.21 no.3
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• pp.406-416
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• 2015

Purpose: This study investigated sexual knowledge, its related factors, and the needs of sex education among elementary, middle, and high school students in order to develop a sex education program. Method: The participants comprised 721 students in grades 5 through 12, from Seoul and the Kyeonggi-do area, in South Korea. Data was collected from the end of August through the end of September 2014, using an anonymous self-administered questionnaire. SPSS Statistics 21.0 was used for the descriptive analysis, chi-square, t-test, ANOVA, and multiple regressions. Results: Higher-grade students had a higher level of sexual knowledge than lower-grade students, but the overall level of sexual knowledge was low. Multivariate analysis showed that gender, grade, school record, and experiences of sex education from family and school were significant predictors of sexual knowledge among adolescents. Coping skills related to sexual crisis situations was the most wanted content of sex education. Conclusion: The results of this study suggested that it is important to develop a sex education program that considers the needs of sex education among adolescents. Also, it is important to periodically perform a survey to identify the need of sex education among elementary, middle, and high school students.

• Journal of Families and Better Life
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• v.29 no.3
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• pp.13-22
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• 2011

The purpose of the study is to analyze the residential mobility effects and planning discrepancies of home-owning households and renting households. The data for the empirical analysis were collected from 248 units residing in Ulsan and were studied using descriptive statistics, chi-squared tests by cross-tabulation and multiple regressions. The majority of the households did not experience a change in types of housing structure or ownership after the residential mobility. However, the housing size increased after residential mobility, showing that most moves were due to the deficit of housing sizes. In terms of future mobility plans, there were significant differences between home-owning households and renting households. More than two-thirds of the renting households were willing to move within 2-4 years to obtain home ownership. On the other hand, most home-owning households were willing to move for housing size, education of the head, and investment purposes. Compared to the forty-four percent of the home-owning households, seventy-two percent of the renting households were willing to relocate, which shows the effects of unstable housing circumstances.

• Journal of Electrical Engineering and Technology
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• v.13 no.3
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• pp.1089-1098
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• 2018

This study aims at developing and applying a hybrid model to the wind power prediction (WPP). The hybrid model for a very-short-term WPP (VSTWPP) is achieved through analytical data, multiple linear regressions and least square methods (MLR&LS). The data used in our hybrid model are based on the historical records of wind power from an offshore region. In this model, the WPP is achieved in four steps: 1) transforming historical data into ratios; 2) predicting the wind power using the ratios; 3) predicting rectification ratios by the total wind power; 4) predicting the wind power using the proposed rectification method. The proposed method includes one-step and multi-step predictions. The WPP is tested by applying different models, such as the autoregressive moving average (ARMA), support vector machine (SVM), and artificial neural network (ANN). The results of all these models confirmed the validity of the proposed hybrid model in terms of error as well as its effectiveness. Furthermore, forecasting errors are compared to depict a highly variable WPP, and the correlations between the actual and predicted wind powers are shown. Simulations are carried out to definitely prove the feasibility and excellent performance of the proposed method for the VSTWPP versus that of the SVM, ANN and ARMA models.

• Journal of Korean Society of Water and Wastewater
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• v.16 no.6
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• pp.686-699
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• 2002

The purpose of this study is to estimate deterioration factors and weighting factors in pipe network which each local self-governments takes rehabilitation and replacement work present time. Deterioration factors in pipe network are able to effected of specific province or location related with water supply. Most of water supply pipes are laid under the ground, it is hard to quantify deterioration degree of water system. Moreover, the timing and economic limitation and insufficient information on the spot survey gives a difficulty to look over how old water supply system is. Accordingly, this study collects and analyses five data as the laying environment, visual analysis, analysis of soil contents, analysis of pipe material, and questionary survey data in water pipe of A city. The deterioration factor estimates 14 factors with excavation and experimental analysis and 9 factors without excavation and experimental analysis. Also, the weighting factors are estimated by using the multiple linear regressions and the linear programming. The estimated deterioration factor and weighting results are compared the analysis result of visual, pipe material, and soil contents with the Probabilistic Neural Network Model. Consequently, the model results of estimated 9 factors in this study and 14 factors show the 1-2% difference. The result show that the proposed model could be used to decide the deterioration condition of pipe line with real excavation and experimental analysis.

• Journal of Sport and Applied Science
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• v.5 no.3
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• pp.7-12
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• 2021

Purpose: The purpose of this study is to examine the relationship between the perfectionism tendency of amateur boxers and exercise exhaustion, to understand the perfectionism tendency of boxers in the sports of speculative sports, and to provide startigic insights for reducing exercise exhaustion. Research design, data, and methodology: In this study, adult boxers registered with the Korean Boxing Association of the Korea Sports Council in 2019 were selected as the research population. 280 boxers participated in the survey and responded the survey items, which were constructed by research variables, perfectionism and burnout. Data were analysed using SPSS version 18.0 for statistics. In details, frequency, correlations, exploratory factor analysis, multiple regressions were conducted to test the proposed relationship. Results: As a result of analysing the relationship between amateur boxers' perfectionism and athletic exhaustion, it was con-firmed that when the self-oriented perfectionism among amateur boxers' perfectionist tendencies was high, it had a significant effect on exercise burnout. Conclusions: In order to reduce the pressure of amateur boxers to win and the pressure to pass through the weight class, which is characteristic of weight control events, if the athlete manages himself well, the athlete's exercise exhaustion will decrease. If professional mental training is combined, it is judged that amateur boxing will be able to develop once again.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.5
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• pp.455-463
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• 2021

The main objective of this research was to analyze the influence of digital marketing on purchasing decisions. The research was guided by specific aims; to evaluate numerous digital marketing platforms in Jordan that can affect the purchasing decisions and identify product categories purchased by customers on digital media platforms. Furthermore, questionnaires were given based on a simple sampling technique and acquired in the Jordanian market. 300 questionnaires were distributed, and 220 available samples were gathered, except for incomplete questionnaires, resulting in a 73% response rate to all those who selected to participate. Descriptive analysis, reliability test, correlation test, and multiple regressions were used in this research. Moreover, this study's results demonstrated that digital marketing, such as social media marketing and mobile marketing, has a profound impact on consumer purchasing decisions. However, hypothesis testing demonstrated that there are many patronized digital media platforms in Jordan that affect student behavior. Jordanian students buy various product categories on digital media platforms, and digital marketing affects student decision-making. Finally, the results of this study suggest that firms should adopt strategies to leverage the digital world and technology, increase brand awareness through digital platforms to continue competing in today's commercial environment.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.5
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• pp.1011-1017
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• 2021

An effective measure to prevent the spread of COVID-19 is wearing masks in public places. This solution is highly recommended in many countries all over the world. The objective of this study is to identify the antecedents of citizens' intention to purchase masks during the COVID-19 pandemic. Based on the theory of planned behavior (TPB), the current study analyzes attitudes toward mask-purchasing, subjective norms, and perceived behavioral control, to assess their impact on intention to purchase masks. In total, six variables are examined: attitude toward mask-wearing, subjective norms, perceived behavioral control, perceived severity, perceived susceptibility, and the intention to wear masks. Data are collected from 243 respondents in Ho Chi Minh City, Vietnam. They were processed through by factor analysis and multiple regressions. The results report that all three factors positively affect citizens' intention to buy masks in the following ascending order: Attitude toward mask-purchasing, subjective norms, and perceived behavioral control. Our study is the first research that applies TPB to investigate citizens' intention to purchase masks to during the COVID-19 pandemic. Moreover, this study provides guidelines to the Vietnamese public managers to combat COVID-19 through the purchase of masks. Shopkeepers would be well advised to observe the intentions of consumers toward masks.