• Korean Journal of Biological Psychiatry
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• v.28 no.2
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• pp.58-69
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• 2021

Objectives The aim of this study was to examine the association between the sleep pattern, chronotype (midpoint of sleep on free days) and the depressive symptoms in adults aged 19 years and over in Korea. This study also investigated the mediating effect of perceived usual stress (PUS) and self-rated health (SRH) on the association between chronotype and depressive symptoms. Methods Among the subjects of the 7th Korea National Health and Nutrition Examination Survey (KNHANES) 2016 and 2018, 16142 adults aged 19 or over responded to the survey and finally 8604 were analyzed according to the exclusion conditions. Logistic regression analysis was conducted to see the risk of depressive symptoms, suicidal ideation over sleep pattern, chronotype. Finally, mediation analysis was performed in order to clarify how PUS and SRH are associated to chronoytpe and depression. Results After controlling for potential covariates, weekly sleep duration < 5 hours, ≥ 10 hours was associated with depressive symptoms. And late bed time sleeping after am 1:00 and later midpoints of sleep was associated with a higher level of depressive symptoms. Additionally, the PUS and SRH between chronotype and depressive symptoms showed a serial multiple mediation effect. Conclusions Short or long sleep duration, late bed time and later midpoints of sleep on free days are associated with depressive symptoms. Furthermore, the mechanism between chronotype and depressive symptoms needs to be further clarified by identifying the serial multiple mediation effects of PUS and SRH.

• Journal of Korean Physical Therapy Science
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• v.30 no.4
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• pp.17-28
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• 2023

Background: The purpose of this study is to examine the multiple-parallel mediation effects of self-esteem and body-image on the relationship between peer attachment and happiness in children with chronic diseases. In addition, this study aims to provide a basis for supporting psychological services alongside therapeutic services as a way to increase the overall happiness of children with chronic diseases. Design: This study utilized data from the 2020 Panel Study on Korean Children. Methods: The survey method was conducted as a survey by investigators, and the number of cases used in the study was 363. Results: First, children's peer attachment is associated with higher levels of overall happiness. Second, it can see that peer attachment not only increases self-esteem, but also leads to a positive perception of one's own body-image. Third, it can be seen that peer attachment, high self-esteem, and positive perception of body-image increase children's overall happiness. Finally, it can be seen that peer attachment can increase children's happiness through self-esteem and body-image Conclusion: It is thought that a more positive prognosis can be expected when psychological support is provided together with therapeutic treatment in providing medical services for children with chronic diseases.

• Korean Journal of Childcare and Education
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• v.13 no.4
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• pp.19-35
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• 2017

Objective: This study aimed to investigate the mediating effect of stress-coping strategies of childcare teachers' creative personality on teacher efficacy. Methods: Study subjects were 204 childcare teachers working at nursery schools located in S city of Gyeonggi province, and this study collected materials from childcare teachers through a self-report survey. For materials collected, this study conducted frequency analysis, correlation analysis and multiple regression analysis using spss 21.0, and verified the mediating effect through the Sobel Test. Results of this study are as follows. Results: First, there was a positive correlation among creative personality, teacher efficacy and stress-coping strategies. Second, results show that stress-coping strategies mediate the effect of childcare teachers' creative personality on teacher efficacy. Lastly, problem-focused coping strategies turned out to be full mediation, whereas coping strategies seeking social support was partial mediation. Conclusion: Based on the results, this study suggested the necessity to prepare a practical plan for enabling childcare teachers to use stress-coping strategies in a successful way.

• The Journal of the Korea Contents Association
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• v.14 no.4
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• pp.267-276
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• 2014

The purpose of the study is to examine the influence of family stress on family adaptation and investigate the mediating effect of family strength on the association between family stress and family adaptation of disabled family. As a result, family stress bas also been from multiple regression analysis revealed that family stress has a significant effect on family adaptation through family strength. Family strength is found to have a full mediation effect. In summary, the findings suggest that disabled family with higher levels of family stress are more likely to have lower family strength and lower family strength decreases the probability of conducting family adaptation. Based on these results, the researchers suggest intervention strategies that could prevent family stress, family strength and family adaptation.

• Journal of Digital Convergence
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• v.15 no.3
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• pp.107-117
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• 2017

This study examined the conditional indirect effect of EEG (electroencephalogram) arousal on the relationship among affective valence, visual attention, perceived self-relevance, and attitudes toward campaign issues in the context of public service announcements (PSAs). Using SPSS macro (No. 14) of conditional process model, the findings in this current study indicated that the perceived self-relevance mediates the relationship between affective valence of PSA and attitudes toward issues and, in turn, is moderated by EEG arousal, indicating goodness-of-fit of the moderated mediation of psychophysiological arousal on PSAs. The results suggested that management of PSAs should be considered the strategic combination between affective valence and perceived self-relevance in advertising appeals.

• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.9
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• pp.1049-1058
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• 2015

This paper aims to study the relationship of U-Traffic Service Quality and User Satisfaction. Independence variables is u-traffic service quality, and mediation parameters are publicity, usefulness and economic. Dependent variable is user satisfaction. Using SPSS 18.0, a series of factor analysis, reliability analysis, multiple regression analysis and path analysis have been performed. The conclusion is as follows. First, U-traffic service quality have a positive effect on user satisfaction directly. Second, U-traffic service quality have a positive effect on user satisfaction through mediation parameters of publicity, usefulness and economic. Third, service quality factor of the U-traffic service quality have more effect on user satisfaction than system quality factor. Last, usefulness among mediation parameters have the most positive effect on user satisfaction.

• Journal of the Korea Society of Computer and Information
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• v.20 no.6
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• pp.21-28
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• 2015

The purpose of this study is to find out the mediation effect of college adaption for the relationship between learning flow and university dropout in local university. For this study, 281 university students in Chungbuk region were applied to assess the mediation effect of college adaption for learning flow and university dropout by using confirmatory factor analysis, hierarchical multiple regression of Baron and Kenny, and Sobel test. The results show that more learning flow tended to have more difficultly in university dropout, and it was founded that academic and social adjustment for university adaption(mediator) partially mediated the influence of learning flow (independent variable) on univeristy dropout (dependent variable), institutional adjustment was fully mediated, and personal-emotional adjustment was no mediation effect. Based on the results of this study, we suggest a implication to decrease university dropout through increasing learning flow and university adaption.

• The Journal of the Korea Contents Association
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• v.19 no.8
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• pp.440-452
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• 2019

The objective of this study is to analyze the mediation effect of communication and interpersonal relations in the impact of job stress of female workers with disabilities on organizational commitment. The subjects are 508 female workers with disabilities who participated in the 1st wave of the Panel Survey of Employment for the Disabled in Years7-8 (2014-2015). A multiple regression analysis was conducted, and the mediation effect was verified according to the research procedures of Baron and Kenny(1986) using bootstrapping. The results showed that organizational justice and work environment stress faced by female workers with disabilities had a negative impact on organizational commitment, and communication and interpersonal relations had a partial mediation effect. Based on these results, this study suggested ways to reduce job stress and increase organizational commitment of female workers with disabilities.

• Human Ecology Research
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• v.55 no.6
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• pp.609-623
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• 2017

Fur apparel is a representative luxury item that displays wealth and social status; however, it is also recognized as an unethical product criticized for its animal maltreatment in the production process. Understanding consumer responses to an ambivalent object, such as fur apparel, is an important research topic both academically and practically. This study investigates the hierarchical effects of perceived benefits and risks of fur apparel on consumers' emotions and purchase intention by applying the ABC model of attitudes to identify the mediating effects of consumer emotions. An online survey was conducted on 390 female consumers that verified hypotheses through structural equation modeling and bootstrapping analysis using phantom variables. The initial results of the survey showed that the relationship between perceived conspicuous benefits and purchase intention towards fur apparel was partially mediated by positive emotion. Second, the relationship between perceived epistemic benefits and purchase intention was completely mediated by positive emotion. Third, the relationship between perceived ethical risk and purchase intention was completely mediated by positive and negative emotions. Fourth, perceived social risk did not affect the purchase intention of fur apparel significantly. The results support that cognitive beliefs about the subject have a significant positive effect on behavioral intentions through emotions as suggested in the ABC model of the attitude. This study provides an in-depth understanding of consumer responses to ambivalent objects by revealing the individual mediating effects of consumers' positive and negative emotions.

• Journal of Nutrition and Health
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• v.51 no.6
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• pp.567-579
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• 2018

Purpose: This study examined the mediation effects of dietary habits, nutrient intake, daily life in the relationship between the working hours of Korean shift workers and metabolic syndrome. Methods: Data were collected from the sixth (2013-2015) Korea National Health and Nutrition Examination Survey (KNHANES). The stochastic regression imputation was used to fill missing data. Statistical analysis was performed in Korean shift workers with metabolic syndrome using the SPSS 24 program for Windows and a structural equation model (SEM) using an analysis of moment structure (AMOS) 21.0 package. Results: The model fitted the data well in terms of the goodness of fit index (GFI) = 0.939, root mean square error of approximation (RMSEA) = 0.025, normed fit index (NFI) = 0.917, Tucker-Lewis index (TLI) = 0.984, comparative fit index (CFI) = 0.987, and adjusted goodness of fit index (AGFI) = 0.915. Specific mediation effect of dietary habits (p = 0.023) was statistically significant in the impact of the working hours of shift workers on nutrient intake, and specific mediation effect of daily life (p = 0.019) was statistically significant in the impact of the working hours of shift workers on metabolic syndrome. On the other hand, the dietary habits, nutrient intake and daily life had no significant multiple mediator effects on the working hours of shift workers with metabolic syndrome. Conclusion: The appropriate model suggests that working hours have direct effect on the daily life, which has the mediation effect on the risk of metabolic syndrome in shift workers.