• Title/Summary/Keyword: statistical data analysis

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The Mediating Effect of Ego Resilience in the Relationship between Children's Academic Stress and School Adjustment (아동의 학업 스트레스와 학교 적응간의 관계에서 자아탄력성의 매개효과)

  • Jeong Yeong Mi
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.2
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    • pp.99-104
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    • 2023
  • The purpose of this study was to examine the effect of children's academic stress on school adaptation and to verify whether ego-resilience plays a mediating role in the relationship between academic stress and school adaptation. Based on the data from the 12th year of the Korean Children's Panel (2019), the general characteristics of the main subjects and the mean, standard deviation, skewness and kurtosis of the main variables were confirmed through basic statistical analysis, and correlation analysis was conducted between variables. In addition, to examine whether ego-resilience mediated the effect of academic stress on school adaptation, a three-step regression analysis was conducted following the procedure of Baron and Kenny. The results of this study were as follows. First, it was found that children's academic stress, school adaptation, and ego resilience were all significantly correlated. The higher the academic stress, the lower the ego-resilience and school adaptability. Second, it was confirmed that ego-resilience has a partial mediating effect in the relationship between children's academic stress and school adjustment. Ego resilience in the academic stress situation means that it acts as an important mediating factor to flexibly adapt to school life by objectively grasping and coping with the stress situation. Therefore, we need to recognize the need for flexible and resilient individual characteristics so that children can reduce academic stress and adapt well to school life, and seek active interest and intervention plans.

The Effect of Engineering Design Based Ocean Clean Up Lesson on STEAM Attitude and Creative Engineering Problem Solving Propensity (공학설계기반 오션클린업(Ocean Clean-up) 수업이 STEAM태도와 창의공학적 문제해결성향에 미치는 효과)

  • DongYoung Lee;Hyojin Yi;Younkyeong Nam
    • Journal of the Korean earth science society
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    • v.44 no.1
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    • pp.79-89
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    • 2023
  • The purpose of this study was to investigate the effects of engineering design-based ocean cleanup classes on STEAM attitudes and creative engineering problem-solving dispositions. Furthermore, during this process, we tried to determine interesting points that students encountered in engineering design-based classes. For this study, a science class with six lessons based on engineering design was developed and reviewed by a professor who majored in engineering design, along with five engineering design experts with a master's degree or higher. The subject of the class was selected as the design and implementation of scientific and engineering measures to reduce marine pollution based on the method implemented in an actual Ocean Clean-up Project. The engineering design process utilized the engineering design model presented by NGSS (2013), and was configured to experience redesign through the optimization process. To verify effectiveness, the STEAM attitude questionnaire developed by Park et al. (2019) and the creative engineering problemsolving propensity test tool developed by Kang and Nam (2016) were used. A pre and post t-test was used for statistical analysis for the effectiveness test. In addition, the contents of interesting points experienced by the learners were transcribed after receiving descriptive responses, and were analyzed and visualized through degree centrality analysis. Results confirmed that engineering design in science classes had a positive effect on both STEAM attitude and creative engineering problem-solving disposition (p< .05). In addition, as a result of unstructured data analysis, science and engineering knowledge, engineering experience, and cooperation and collaboration appeared as factors in which learners were interested in learning, confirming that engineering experience was the main factor.

Influence of Time-Management Ability on Face-to-face and Non-face-to-face Learning Flow in Adolescent: Moderating Effect of Parental Learning Involvement (청소년들의 시간관리능력이 대면 및 비대면 학습몰입에 미치는 영향: 부모 학습관여의 조절효과)

  • Kim, Eun-Jin;Jeong, Goo-Churl
    • The Journal of the Korea Contents Association
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    • v.22 no.5
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    • pp.643-655
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    • 2022
  • The purpose of this study was to verify the moderating effect of parental learning involvement in the effect of adolescents' time management ability on face-to-face and non-face-to-face learning flow. The participants were 363 middle and high school adolescents, and data were collected through an online survey. The main statistical analysis methods were ANOVA, correlation analysis, and regression analysis. The major findings were as follows. First, learning flow was significantly higher in the face-to-face class than in the non-face-to-face class. Second, there was a statistically significant positive correlation among time management ability, parental involvement in learning, and learning flow. Third, in the effect of time management ability on face-to-face learning flow, the moderating effect of parental learning involvement was statistically significant. Fourth, in the effect of time management ability on non-face-to-face learning flow, the moderating effect of parental learning involvement was statistically significant. In other words, the higher the positive parental involvement in learning, the stronger the effect of adolescents' time management ability on learning flow. Finally, the importance of positive parental involvement for the improvement of adolescents' learning flow and methods of enhancing time management ability were discussed.

Evaluation of Extreme Rainfall based on Typhoon using Nonparametric Monte Carlo Simulation and Locally Weighted Polynomial Regression (비매개변수적 모의발생기법과 지역가중다항식을 이용한 태풍의 극치강우량 평가)

  • Oh, Tae-Suk;Moon, Young-Il;Chun, Si-Young;Kwon, Hyun-Han
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.29 no.2B
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    • pp.193-205
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    • 2009
  • Typhoons occurred in the tropical Pacific region, these might be affected the Korea moving toward north. The strong winds and the heavy rains by the typhoons caused a natural disaster in Korea. In the research, the heavy rainfall events based on typhoons were evaluated quantitative through various statistical techniques. First, probability precipitation and typhoon probability precipitation were compared using frequency analysis. Second, EST probability precipitation was calculated by Empirical Simulation Techniques (EST). Third, NL probability precipitation was estimated by coupled Nonparametric monte carlo simulation and Locally weighted polynomial regression. At the analysis results, the typhoons can be effected Gangneung and Mokpo stations more than other stations. Conversely, the typhoons can be effected Seoul and Inchen stations less than other stations. Also, EST and NL probability precipitation were estimated by the long-term simulation using observed data. Consequently, major hydrologic structures and regions where received the big typhoons impact should be review necessary. Also, EST and NL techniques can be used for climate change by the global warming. Because, these techniques used the relationship between the heavy rainfall events and the typhoons characteristics.

A Study of the Relationship Between Job Status and Job Satisfactions on Early Childhood Teachers (유아교사들의 직무실태와 직무만족도에 관한 연구)

  • Cho, Myoung-Sun;Lee, Jae-Kyu
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.8
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    • pp.469-478
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    • 2019
  • This study is an empirical survey of the job status and job satisfaction of early childhood teachers. The subjects of this study were teachers of early childhood education in (the province of) Chungcheongnam-do. The Early Childhood Education Institution was conducted with 255 teachers for teachers working in public day care centers, private day care centers, public kindergartens and private kindergartens. o carry out this study, we analyzed the collected questionnaires by using the SPSS statistical package program. T-test, χ2-validation and ANOVA analysis were used for this study, and Scheffé analysis was applied as a post hoc analysis. As a result of this study, job status was examined by type, age, educational attainment, and educational experience. The satisfaction level of educational institutions was highest in the national public day care centers, and the age was 50 years or older, and the education level was high in graduate school. In addition, the job satisfaction of early childhood teachers was significantly analyzed in relation to fellow teacher, relationship with the director, self-identity and teaching environment. Through this study, understanding the current job status and satisfaction of early childhood education teachers can be used as an important data in preparing a plan to raise their job performance and work efficiency.

A Study of Influential Factors on Health Promoting Behaviors of the Elderly: Focusing on Senior Citizens Living in Seoul (노인의 건강증진행위 영향요인에 관한 연구: 서울지역 거주노인을 중심으로)

  • Kim, Hyesook;Junsoo, Hur
    • 한국노년학
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    • v.30 no.4
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    • pp.1129-1143
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    • 2010
  • The purposes of this study were to investigate the major determinants influencing on health promoting behaviors(HPB) of the elderly living in Seoul. The conceptual framework of the study was Pender's health promoting model and the ecological perspectives. The study was conducted with 495 elderly persons whom 60 years old. For the analysis of data, descriptive statistics and hierarchical regression were used for the statistical analysis with SPSS program. The results were as following: 1) The mean score of the HPB was 3.11(SD=0.41). 2) Hierarchical regression analysis found that ModelIV accounted for 55.7% of the variance in HPB. 3) The Major determinants on HPB among the elderly persons were prior related perceived benefits of action, social support, perceived self-efficacy, community environment, perceived health status, education, and age. In conclusions, first, we should develop to various levels of educational and supportive programs for the HPB among the elderly persons. Second, we should examine more with environment, the accessibility to senior welfare agencies. Third, we should be organized the self-help groups for the elderly persons to improve health promoting behaviors. Fourth, the government should established more secure environment for the HPB, and find better solutions that are provided by various social welfare agencies connected with the coordination of the services in the local communities. Finally, we should develop professional education training programs of the HPB for the practitioners in the field of Gerontological Social Work.

Informative Role of Marketing Activity in Financial Market: Evidence from Analysts' Forecast Dispersion

  • Oh, Yun Kyung
    • Asia Marketing Journal
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    • v.15 no.3
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    • pp.53-77
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    • 2013
  • As advertising and promotions are categorized as operating expenses, managers tend to reduce marketing budget to improve their short term profitability. Gauging the value and accountability of marketing spending is therefore considered as a major research priority in marketing. To respond this call, recent studies have documented that financial market reacts positively to a firm's marketing activity or marketing related outcomes such as brand equity and customer satisfaction. However, prior studies focus on the relation of marketing variable and financial market variables. This study suggests a channel about how marketing activity increases firm valuation. Specifically, we propose that a firm's marketing activity increases the level of the firm's product market information and thereby the dispersion in financial analysts' earnings forecasts decreases. With less uncertainty about the firm's future prospect, the firm's managers and shareholders have less information asymmetry, which reduces the firm's cost of capital and thereby increases the valuation of the firm. To our knowledge, this is the first paper to examine how informational benefits can mediate the effect of marketing activity on firm value. To test whether marketing activity contributes to increase in firm value by mitigating information asymmetry, this study employs a longitudinal data which contains 12,824 firm-year observations with 2,337 distinct firms from 1981 to 2006. Firm value is measured by Tobin's Q and one-year-ahead buy-and-hold abnormal return (BHAR). Following prior literature, dispersion in analysts' earnings forecasts is used as a proxy for the information gap between management and shareholders. For model specification, to identify mediating effect, the three-step regression approach is adopted. All models are estimated using Markov chain Monte Carlo (MCMC) methods to test the statistical significance of the mediating effect. The analysis shows that marketing intensity has a significant negative relationship with dispersion in analysts' earnings forecasts. After including the mediator variable about analyst dispersion, the effect of marketing intensity on firm value drops from 1.199 (p < .01) to 1.130 (p < .01) in Tobin's Q model and the same effect drops from .192 (p < .01) to .188 (p < .01) in BHAR model. The results suggest that analysts' forecast dispersion partially accounts for the positive effect of marketing on firm valuation. Additionally, the same analysis was conducted with an alternative dependent variable (forecast accuracy) and a marketing metric (advertising intensity). The analysis supports the robustness of the main results. In sum, the results provide empirical evidence that marketing activity can increase shareholder value by mitigating problem of information asymmetry in the capital market. The findings have important implications for managers. First, managers should be cognizant of the role of marketing activity in providing information to the financial market as well as to the consumer market. Thus, managers should take into account investors' reaction when they design marketing communication messages for reducing the cost of capital. Second, this study shows a channel on how marketing creates shareholder value and highlights the accountability of marketing. In addition to the direct impact of marketing on firm value, an indirect channel by reducing information asymmetry should be considered. Potentially, marketing managers can justify their spending from the perspective of increasing long-term shareholder value.

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The Effect of Job Embeddedness in Small and Medium Sized Construction Companies on Turnover Intention through Organizational Commitment (중소건설기업의 직무배태성이 이직의도에 미치는 영향 : 조직몰입을 매개로)

  • Choi, Young-cheol;Hwang, Chan-gyu;Kim, Ji-hyung
    • Journal of Venture Innovation
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    • v.5 no.3
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    • pp.41-55
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    • 2022
  • The purpose of this study is to investigate the effect of Job Embeddedness of members of small and medium-sized construction companies on turnover intention through organizational commitment, targeting employees of small and medium-sized construction companies located in Seoul, Gyeonggi, and Incheon. The significance sampling method was applied as the sampling method, and the number of cases used in the final analysis was 316, and the input data was processed using the SPSS 20.0 program for statistical analysis. As a result of analysis, First, it was found to have a significant negative(-) effect on the turnover intention in suitability and sacrifice as sub-factors of Job Embeddedness of small and medium-sized construction company members, and the correlation between linkage and turnover intention was not significant. Second, it was found to have a significant positive(+) effect on the organizational commitment in suitability, links and sacrifice as sub-factors of job embeddedness of small and medium-sized construction company members. Third, organizational commitment was found to have a significant negative(-) effect on turnover intention. Fourth, organizational commitment was found to completely mediate the relationship between job commitment and turnover intention. Therefore, it was found that the higher the Job embeddedness of the members of small and medium-sized construction companies, the more influential the turnover intention. This suggests that it can have a negative effect on turnover intention by improving the suitability of values pursued by individual members of the organization, work passion, and attachment to the organization.

The Effects of Rapport Building Behavior on Customer Loyalty in the Banking Service Environment : Through Customer Attitude (은행서비스 환경에서 라포형성행동이 고객충성도에 미치는 영향 : 고객태도를 매개로)

  • Kim, Cheon-wook;Hwang, Chan-kyu
    • Journal of Venture Innovation
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    • v.6 no.2
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    • pp.67-82
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    • 2023
  • The purpose of this study is to investigate the effect of Rapport Building Behavior on Customer Loyalty through Customer Attitude in the banking service environment targeting bank customers residing in Seoul and the metropolitan area. This study applied a significant sampling method, and the number of samples used in the final analysis was 201, and statistical analysis was performed on the input data using the SPSS 20.0 program. As a result of the analysis, first, it was found that the sub-factors of Rapport Building Behavior in the banking service environment, Attentive, Courtesy, and Information Sharing, had a significant positive (+) effect on customer loyalty, and Connecting was found that there was no positive (+) effect on customer loyalty. Second, Attentive, Courtesy, and Information Sharing, which are sub-factors of rapport building behavior, were shown to have a significant positive (+) effect on customer attitude, and Connecting was found that there was no positive (+) effect on customer attitude. Third, customer attitude was found to have a significant positive (+) effect on customer loyalty. Fourth, customer attitude was shown to mediate the relationship between rapport building behavior and customer loyalty. Therefore, it was found that rapport building behavior is a factor influencing customer attitude and customer loyalty in the banking service environment. This means that rapport building behavior between customers and banks can change customer attitudes and have a positive effect on customer loyalty. It can be seen as implying that customer management is necessary to increase customer loyalty through rapport building between customers and banks even in the changing banking service environment.

The Effect of Participation in Survival Swimming Education on Underwater Anxiety and Water Safety Awareness of University Students (생존수영교육 참여가 대학생의 수중불안과 수상안전 의식에 미치는 영향)

  • Myung-Chul Lee;Kyung-Hun Han
    • Journal of the Korean Applied Science and Technology
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    • v.40 no.6
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    • pp.1201-1212
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    • 2023
  • This study aimed to analyze the changes in underwater anxiety and water safety consciousness among college students through participation in survival swimming education and the relationship between these changes and various factors. To achieve this, 200 college students who were participating in survival swimming education from universities located in the Busan-Ulsan-Gyeongnam region were selected as participants using convenience sampling. Among them, a final valid sample of 191 students was utilized. Data analysis was conducted using SPSS 25.0 statistical software, including exploratory factor analysis, reliability analysis, paired sample t-test, repeated measures ANOVA. The results are as follows: Firstly, college students who participated in survival swimming education showed a decrease in post-test underwater anxiety and an increase in water safety consciousness compared to pre-test. Secondly, the interaction between the groups based on the presence or absence of swimming education experience and time showed a significant effect only in the safety education, a sub-factor of water safety consciousness. Based on these results, the effectiveness of survival swimming education for college students could be confirmed, and further directions for expanding survival swimming education in university settings could be considered.