• (The) Korean Journal of Educational Psychology
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• v.31 no.2
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• pp.215-237
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• 2017

This study was to examine the mediating role of high school students' teacher justice experience and their emotional relationship with teachers in the links between belief in a just world and school engagements, along with gender differences. The participants were 383 high school students in Seoul, Korea. The results showed that the more the students believed in a just world, the more they engaged in school life. In addition, the effect of belief in a just world on teacher-student relationship was fully mediated by teacher justice experience, and teacher-student relationship also mediated association between teacher justice experience and school engagement. In particular, for female students(N=213), the belief in a just world had both direct and indirect effect on school engagement mediated by students' experience of teacher justice and their relationship with teachers in order. On the other hand, for male students(N=168), the influence of belief in a just world on school engagement was fully mediated by teacher justice experience and teacher-student relationship in sequence. The results that belief in a just world had different path to school engagement by gender could be helpful to understand beneficial effect of belief in a just world in educational context.

• The Journal of the Korea Contents Association
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• v.19 no.9
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• pp.582-592
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• 2019

This study was conducted to identify the causal pathways of variables affecting life satisfaction in adolescents with disabilities to establish a basis for concrete intervention in their daily lives. This study was conducted on 239 adolescents with disabilities aged 9 to 24 years who responded to the survey on the actual conditions of people with disability in 2017. The SPSS macro process was used for analysis of the dual mediation effect. The results showed that there was a statistically significant correlation between instrumental daily life performance capacity, life satisfaction, Self-Rated Health, and participation in culture and leisure activities. It confirmed the mediating effects of Self-Rated Health and cultural leisure activities when the instrumental daily life performance capacity affected life satisfaction. This confirmed the dual mediating effect of instrumental daily life performance capacity on life satisfaction through causal pathways of Self-Rated Health and participation in cultural leisure activities. Based on the results of this study, it was possible to identify the focus of practical intervention through the identification of sequential pathways of Self-Rated Health and cultural and leisure activities on influence of instrumental daily life performance capacity and life satisfaction in adolescents with disabilities.

• Korean Journal of Culture and Social Issue
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• v.28 no.3
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• pp.373-392
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• 2022

The present study aimed to emprically verify the materialistic pursuits process of undergraduates by applying the escape theory of materialism(Donnelly et al., 2016). Among the six steps of Donnelly's model, the first step is percieving that the fall short of high standards of life, as measured by external contingencies of self-worth. The second step is blaming the self for falling short of standards, as measured by self-discrepancy. The third step of high aversive self-awareness is measured by low stability of self-esteem. A total of 465(203 male and 262 female) college students participated in the online survey and the model was tested using structural equation model. We found that the relationship of external contingencies of self-worth and materialism was mediated by self-discrepancy and there was a sequential mediation effect of self-discrepancy and the stability of self-esteem. The direct effect of external contingencies of self-worth on materialism was also significant. This study is meaningful in that it used the escape theory to emprically verify the materialistic pursuit process of Korean undergraduates living in a meritocratic society.

• 한국노년학
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• v.38 no.4
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• pp.905-922
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• 2018

The purpose of this study was to examine the mediating effects of generativity and ego-integration on the relationship between leisure activity experience and life satisfaction after retirement, and to clarify the structural relationship between variables. In this study, SPSS for window 21.0 program r and AMOS 18.0 were used. First, correlation analysis was performed among the main variables to investigate the relationship between variables. Next, confirmatory factor analysis and fit of hypothesis model were confirmed. Finally, the bootstrapping procedure was conducted to verify the significance of the indirect effect. The main results of this study are as follows. First, leisure activity experience, life satisfaction, generativity and ego-integration were statistically correlated. Second, in the research model, there was a double-mediated effect of the generativity and ego-integration in the married couple's leisure experience and life satisfaction after retirement. The indirect effect that affects life satisfaction was found to be greater through mediation. This study has limitations in collecting data on retirees who have retirement experience or retired husbands who have. The reason for this is that there is a difference in the sense of life satisfaction between the couple and their spouse, and the significance of the path between the variables may also differ. Therefore, the follow-up study suggests the necessity of analyzing only the couple.

• Industry Promotion Research
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• v.9 no.3
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• pp.241-249
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• 2024

The purpose of this study was to investigate the individual variables that influence the behavior of college students who successfully set career goals, plan for achieving goals, and specifically practice them. As a result of analyzing the relationship between career stress, career decision-making self-efficacy, career motivation, and career preparation behavior through a survey of 300 four-year college students nationwide, career stress negatively affected career self-efficacy, career decision-making self-efficacy had a positive effect on career motivation, and career motivation had a positive effect on career preparation behavior. In addition, career decision-making self-efficacy and career motivation sequentially mediated between career stress and career preparation behavior. It is significant that college students found personal variables necessary to successfully prepare for career and confirmed the relationship between the variables through the results of this study.

• Korean Journal of School Psychology
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• v.18 no.3
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• pp.351-370
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• 2021

This study investigated the effect of parental psychological control on relational aggression among middle school students, the mediating effects of rejection sensitivity and friendship jealousy, and whether there were differences in these variables by the demographic characteristics of gender and family form. Data of 554 middle school students living in Daegu and Gyeongsangbuk-do were used for the final analysis. There were two major results. The first major result was what rejection sensitivity and friendship jealousy sequentially mediated the relationship between parental psychological control and relational aggression. The second major result was gender differences which was shown by a multi-group analysis to examine in the path from parental psychological control to rejection sensitivity, the path from parental psychological control to relational aggression, and the path from friendship jealousy to relational aggression. This study was meaningful in that it expanded the understanding of relational aggression and identified directions for therapeutic interventions.

• Korean Journal of School Psychology
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• v.18 no.2
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• pp.197-220
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• 2021

This study examined the mediating effect of cognitive flexibility and active coping on the relationship between elementary school teachers' adult attachment and their perceptions of teacher-student relationships. Questionnaires were given to 203 elementary school teachers in Gyeonggi-do that contained adult attachment, cognitive flexibility, coping, and teacher-student relationship scales. Collected data was analyzed using SPSS 23.0 and SPSS macros. There were three major results. First, cognitive flexibility fully mediated the relationship between adult attachment and perceptions of teacher-student relationships. Teachers who had secure adult attachment tended to positively perceive teacher-student relationships as a result of their cognitive flexibility. Second, active coping did not mediate the relationship between adult attachment and perceptions of teacher-student relationships when the mediating effects of both cognitive flexibility and active coping were considered. This result means that adult attachment indirectly affected active coping via cognitive flexibility. Third, cognitive flexibility and active coping fully mediated the relationship between adult attachment and perceptions of teacher-student relationships. Teachers who had secure adult attachment tended to perceive teacher-student relationships positively as a result of their cognitive flexibility and active coping. This paper presents the implications of these results, limitations of this study, and suggestions for future research.

• Korean Journal of Psychosomatic Medicine
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• v.30 no.2
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• pp.137-144
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• 2022

Objectives : This study was designed to investigate the effect of sleep quality on depression symptoms and the mediating effect of interpretation bias and anxiety symptoms in psychiatric patients. Methods : Data accumulated for outpatients and inpatients in the Department of Mental Health Medicine at Hanyang University Guri Hospital were used. The measurement tools were Pittsburgh Sleep Quality Index (PSQI), Ambiguous/Unambiguous Situations Diary-Extended Version (AUSD-EX), Beck Anxiety Inventory (BAI), Beck Depression Inventory-II (BDI-II). Correlation analysis and bootstrapping analysis were conducted using SPSS 25.0 and SPSS Macro based on 162 patient data. Results : As a result of the study, the double mediating effect of interpretation bias for Ambiguity and anxiety symptoms was significant in the relationship between sleep quality and depression symptoms. Conclusions : In this study, it was confirmed that low sleep quality sequentially affects anxiety and depression symptoms through interpretation bias for ambiguity. Based on this, it is expected that the development of other psychiatric symptoms can be prevented by preferentially performing therapeutic intervention on preceding symptoms.

• Korean journal of psychology:General
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• v.36 no.2
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• pp.241-270
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• 2017

In this study we investigated the structural relationship between the Big Five personality traits which is a pretrauma characteristic, posttraumatic cognition, rumination, posttraumatic growth(PTG), and posttraumatic stress disorder(PTSD) symptoms. The participants were 1,000 adults who experienced traumatic event. For statistical analysis we set the research model with the Big Five personality traits affecting deliberate rumination through posttraumatic cognition and intrusive rumination. Competing model was set without the path from intrusive rumination to deliberate rumination. The results indicated that rumination and posttraumatic cognition did not mediate the relationship between extraversion, agreeableness, conscientiousness and PTG, PTSD symptoms. Second, there was a mediating effect of intrusive rumination between openness to experience and PTSD symptoms. Moreover, the pathway to intrusive rumination, deliberate rumination, and PTG from openness to experience was also significant. Third, the pathway to posttraumatic cognition, event-related rumination, and both PTSD symptoms and PTG from neuroticism was significant. These results support the cognitive process of PTG model In the end we discussed the implication and limitations of the study.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.25 no.4
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• pp.315-321
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• 2012

In this study, a sequential multiscale homogenization method to characterize the effective thermal conductivity of nano particulate polymer nanocomposites is proposed through a molecular dynamics(MD) simulations and a finite element-based homogenization method. The thermal conductivity of the nanocomposites embedding different-sized nanoparticles at a fixed volume fraction of 5.8% are obtained from MD simulations. Due to the Kapitza thermal resistance, the thermal conductivity of the nanocomposites decreases as the size of the embedded nanoparticle decreases. In order to describe the nanoparticle size effect using the homogenization method with accuracy, the Kapitza interface in which the temperature discontinuity condition appears and the effective interphase zone formed by highly densified matrix polymer are modeled as independent phases that constitutes the nanocomposites microstructure, thus, the overall nanocomposites domain is modeled as a four-phase structure consists of the nanoparticle, Kapitza interface, effective interphase, and polymer matrix. The thermal conductivity of the effective interphase is inversely predicted from the thermal conductivity of the nanocomposites through the multiscale homogenization method, then, exponentially fitted to a function of the particle radius. Using the multiscale homogenization method, the thermal conductivities of the nanocomposites at various particle radii and volume fractions are obtained, and parametric studies are conducted to examine the effect of the effective interphase on the overall thermal conductivity of the nanocomposites.