• Journal of Industrial Convergence
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• v.20 no.6
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• pp.125-133
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• 2022

The purpose of this study was to identify the mediating effects of positive thinking in the relationship between emotional expressivity and public speaking anxiety. Participants were recruited from one university freshmen located in Gwangju city. Data were collected from 146 university freshmen. The self-reported questionnaire was used to assess the level of positive thinking, emotional expressivity, public speaking anxiety. The SPSS WIN 23.0 version program was used with Baron and Kenny's 3-Step mediating effect and Sobel test. It was examined whether there was a mediating effect of positive thinking on emotional expression and presentation anxiety. In the second stage, emotional expressivity showed a significant effect on presentation anxiety. In stage 3, emotional expressivity was not statistically significant in presentation anxiety, and positive thinking was statistically significant in presentation anxiety. Positive thinking had a total mediating effect(z=-4.57, p<.001) in the relationship between emotional expressivity and public speaking anxiety. To reduce the public speaking anxiety among university freshmen, it is necessary to develop interventions that enhance positive thinking in addition to providing emotional expressivity.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.8 no.2
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• pp.555-566
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• 2018

The aim of the study was to explore the mediating effect of meaning in life on the relationship between meaning making about process of achieving long term goals and happiness. 180 college students completed the open questionnaire about personal long life goal, also rated the scales of meaning making, meaning in life and subjective well-being. The correlation analysis, hierarchical regression analysis, and sobel test were examined. The results as followed. First, meaning making, meaning in life and happiness were positive correlated. Second, the relationship between meaning making about process achieving long term goals and happiness was completely mediated by meaning in life. The finding suggested that meaning making and meaning in life can help to enhance happiness in college students. Also the results supported that meaning in life was important factor that affects subjective well-being in Koran college students. Finally, the limitations were suggested for future research.

• Journal of the Korea Society of Computer and Information
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• v.10 no.4 s.36
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• pp.133-141
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• 2005

An edge is where the intensity of an image moves from a low value to high value or vice versa. The edges tell where objects are. their shape and size. and something about their texture. Many traditional edge operators are derivative based and perform reasonably well for simple noise-free images. In recent, statistical edge detectors for complex images with noises have been described. This paper compares and analysis the performance of statistical edge detectors based on the T test and Wilcoxon test, and mathematical edge detectors based on Sobel operator, and the well-known Canny detector and Wavelet transformation detector, and provides the implementation of these edge detectors using Java on the web.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.5
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• pp.1001-1010
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• 2021

The world of tourism is a tangible form of a global business trip, which is very promising because it will be estimated to be a sector capable of driving world economic growth resulting from tourists' ever-increasing movement. Currently, in Indonesia, marketing activities in this sector are an integrated process, where the main target is providing customer satisfaction. Thus, the company's marketing activities are expected to be in accordance with customer expectations. The essential purpose of this study was to analyze the mediating role of the effect of trust and customer value on loyalty. The population of this study was users of the Lentera Wisata service in Semarang City, Indonesia. The sampling used a purposive sampling method, with the criteria of male and female customers and customers who have used the Lentera Wisata Semarang service bureau more than once. The test employed multiple regression analyses and the Sobel test. The test results revealed that trust and customer value positively and significantly affected satisfaction. However, trust did not affect customer loyalty. Meanwhile, customer value and satisfaction significantly and positively influenced loyalty. Additionally, the Sobel test results revealed that satisfaction mediated the effect of trust and customer value on customer loyalty.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.7
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• pp.125-132
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• 2018

The purpose of this study is to examined the relationship between child care teachers' science teaching efficacy and children's scientific attitude. Then, using the instructional creativity as a parameter to increase the quality of teacher-children interaction, we examined how the teacher-children relationship changed. In this study, 303 child care center teachers in Suwon, Gyeeonggi were surveyed. To analyze the data, structural equation modeling and Sobel-test were performed using SPSS 23.0 and AMOS 23.0. The analysis results showed that child care center teachers' science teaching efficacy had positive effects on the teachers' creativity and the children's scientific attitude. Furthermore, the creativity of child care center teachers had a positive effect on children's scientific attitude. The result of the Sobel-test revealed that child care center teachers's creativity played a mediating role between teachers' science teaching efficacy and children's scientific attitude and acted as a key variable in promoting children's scientific attitude. In conclusion, it has been identified that the creativity of the infant teacher's teaching is an important change that has a positive effect on the child's scientific attitude. Therefore, if education is provided to enhance the creativity of the professor when the infant teacher is working as a science professor at the same time, it can contribute to the quality of the child's scientific attitude.

• Journal of Korean Clinical Nursing Research
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• v.26 no.1
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• pp.1-9
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• 2020

Purpose: This study was conducted to provide fundamental data on increasing organizational commitment of clinical nurses by verifying the mediation effects of resilience in the correlation between the verbal violence experienced by nurses and their organizational commitment. Methods: Participants were 167 nurses working in 2 university hospitals and 3 general hospitals located in D city Nurse managers were excluded. Data were analyzed using t-test, ANOVA, Pearson's correlation coefficient, and multiple regression analysis based on the three-step mediation effect verification procedures proposed by Baron and Kenny. SPSS 24.0 program was used. The significance of mediation effect was verified by performing the Sobel test. Results: The resilience was confirmed to have a partial mediating effect in the relationship between verbal violence experience and organizational commitment (β=.25, p=.001), and verified by Sobel test (Z=-1.95, p=.026). Conclusion: The results verifiying that verbal violence experience, organizational commitment, and resilience are correlated with each other, and showing that the organizational culture needs to be improved and the hospital environment needs to be changed to decrease verbal violence experiences and increase resilience in order to enhance organizational commitment.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.30 no.3
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• pp.76-85
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• 2022

Work situational awareness test (WSAT) has been utilized to estimate the fatigue risk of workers who worked with time pressure or latent accident risks at their work environment. Thus researchers decided to use WSAT to estimate fatigue risk of cabin crews of an airline in Korea and to analyze empirically how such risk might have an effect on cabin crew's safety behavior. This was because there had not been enough research on accessing cabin crews' fatigue and analyzing its risk for the flight safety. In addition, the mediation effect of cabin crew's planning was also analyzed through Sobel-test by researchers among external factors such as lack of concentration, attention deficit, distraction and safety behavior. According to empirical analysis, it was found attention deficit and distraction of cabin crews due to fatigue during the flight had a significant negative effect on their planning. Planning was also proven to have mediation effect to cabin crew's safety behavior.

• Journal of Digital Convergence
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• v.16 no.1
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• pp.399-408
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• 2018

The purpose of this study is to investigate the effects of father's family-of-origin experiences on parenting attitude and parenting participation around mediating effects of value of children. To this end, this study investigated family-of-origin experience, value of children, parenting attitude, and degree of parenting participation on 247 fathers of 3~5 year old children. Descriptive statistics, correlation analysis, regression analysis, and Sobel Test were conducted using SPSS 21 program on the collected data. According to the research result, there was a significantly positive relationship between emotional value of children, parenting attitude, and parenting participation among family-of-origin experience and value of children. This study conducted a regression analysis and Sobel Test by stage to identify mediating effects. As a result, it was identified that father's family-of-origin experience makes positive effect on parenting attitude and parenting participation, and emotional value of children among value of children mediates their relationship. Based on the findings, this study suggested that multilateral consideration and systematic system for formation of positive value of children are needed and suggested the direction of follow-up study on fathers as a coparent.

• Journal of Digital Convergence
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• v.16 no.6
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• pp.307-315
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• 2018

The purpose of this study is to examine to identify the mediating effects of emotional intelligence in the relation between critical thinking disposition and clinical competence among new graduate nurses immediately after graduation. Subjects were 181 new graduate nurses immediately after graduation. in two general hospitals in C city and K city. Data were collected by self-report questionnaires from February 27 to March 30, 2017. Data were analyzed by descriptive statistics, Independent t-test, ANOVA, Pearson's correlation and Multiple regression and Sobel test to test the significance of a mediation effect using SPSS 23 software. Emotional intelligence were significantly positive correlations with critical thinking disposition(r=.62, p<.001) and clinical competence(r=.60, p<.001) in new graduate nurses immediately after graduation. Emotional intelligence partially mediated the relationship between critical thinking disposition and clinical competence which showed significance in Sobel's test(Z=3.88, p<.001). Theses results indicated that in order to improve the clinical competence of new nurse, it is necessary to develop and test the program for improving not only on the critical thinking disposition but also on the emotional intelligence.

• Journal of the Korea Society of Computer and Information
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• v.21 no.9
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• pp.45-49
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• 2016

In this study, an image processing algorithm was developed to increase readability of the images of specific parts of a KTX train acquired by using a mobile digital radiographic testing device in a situation where a running train is stopped. The image processing algorithm was realized by using a Visual C++ development tool. The algorithm developed in this study allows to select an interested region in the acquired images when the interested region is suspected to cause a problem, and applies a thinning process based Sobel operators to the selected region. The experimental results show that the readability of defect parts that are not visible to naked eyes was increased through edge detector. Application of the algorithm developed in this study may help to accurately read non-destructive inspection images.