• 제목/요약/키워드: Mediation analyses

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Introduction to Mediation Analysis and Examples of Its Application to Real-world Data

  • Jung, Sun Jae
    • Journal of Preventive Medicine and Public Health
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    • 제54권3호
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    • pp.166-172
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    • 2021
  • Traditional epidemiological assessments, which mainly focused on evaluating the statistical association between two major components-the exposure and outcome-have recently evolved to ascertain the in-between process, which can explain the underlying causal pathway. Mediation analysis has emerged as a compelling method to disentangle the complex nature of these pathways. The statistical method of mediation analysis has evolved from simple regression analysis to causal mediation analysis, and each amendment refined the underlying mathematical theory and required assumptions. This short guide will introduce the basic statistical framework and assumptions of both traditional and modern mediation analyses, providing examples conducted with real-world data.

유아의 영상미디어 시청시간과 취침시간이 집행기능곤란에미치는 영향: 유아의 채널 선택권과 부모의 제한형 미디어중재의 조절된-조절된 매개효과 (The Effect of Children's Screen Media Time on Bedtime and Executive Function Difficulties: A Moderated-Moderated Mediation Effect of Children's Media Content Selection and Parental Restrictive Media Mediation)

  • 김윤경;박주희;박예슬;홍지연
    • 한국보육지원학회지
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    • 제20권2호
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    • pp.145-167
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    • 2024
  • Objective: This study aimed to investigate the moderated-moderated mediating effects of children's media content selection and parental restrictive media mediation on the relationship between children's screen media time and executive function difficulties. Methods: A total of 693 parents of children aged 5~6 years participated in this study and were asked to answer all survey questions. The data were analyzed by descriptive statistics and correlation analysis using SPSS 27.0. Model 11 of PROCESS macro 4.3 was used to examine the moderated-moderated mediation model. Children's gender, age, childcare enrollment status, and household income were included in the analyses as covariates. Results: The moderated-moderated mediating effects of children's media content selection and parental restrictive media mediation were found to be significant. Specifically, bedtime mediated the relationship between screen media time and executive function difficulties only when parents did not appropriately implement restrictive mediation and children freely selected media content. Conclusion/Implications: It is recommended that parents understand the importance of implementing restrictive media mediation and selecting appropriate media contents for their child to prevent executive function difficulties in early childhood. Also, child education or day-care centers should offer education program about appropriate media use to reach more parents.

부모의 학업성취압력이 초등학생의 자기효능감에 미치는 영향 : 목표지향성의 매개효과를 중심으로 (The Relationship of Parental Academic Achievement Pressure to Self-efficacy of Elementary Students : Mediation Effects of Achievement Goals)

  • 이수진;조상철;허일범
    • 아동학회지
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    • 제29권3호
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    • pp.289-301
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    • 2008
  • The present study examined the relationship between parental academic achievement pressure and self-efficacy mediated by student's achievement goal orientation among elementary school students. The 638 participants were fifth graders living in a metropolitan area. Analyses revealed that children who were high both in performance-goal and mastery-goal orientation reported highest perceived parental academic achievement pressure and self-efficacy. Performance-goal orientation played a mediation role in the relationship between parental academic achievement pressure and self-efficacy, while mastery-goal orientation did not. The limitations of the present study and suggestions for future research were discussed.

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치위생과 학생의 자아존중감과 학습동기의 관계에 대한 우울의 매개효과 (The mediation effect of depression between self-esteem and academic motivation in dental hygiene students)

  • 김지영
    • 한국치위생학회지
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    • 제14권4호
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    • pp.503-509
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    • 2014
  • Objectives : The purpose of this study was to investigate the influence of self-esteem on academic motivation, and the mediating effect of depression in dental hygiene students. Methods : A self-reported questionnaire was filled out by 401 dental hygiene students for 2 weeks in June, 2014 in Ulsan and Daegu. The data were analyzed by a descriptive analyses, Pearson correlation, multiple regression analysis and Sobel test. Results : Self-esteem had a significant influence on academic motivation and self-esteem had a significant influence on depression in the dental hygiene students. Conclusions : Depression had a partial mediation effect on the self-esteem and academic motivation.

Third-Party Funding as a Panacea for an Amicable Adjudication of International Arbitration Disputes in Nigeria under the Arbitration and Mediation Act 2023

  • Clement Ighodargho OSUYA
    • 한국중재학회지:중재연구
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    • 제33권3호
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    • pp.95-106
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    • 2023
  • This informative piece delves into the intriguing and crucial history of third-party funding in Nigeria and its application in the Arbitration and Mediation Act of 2023. The article analyses the impact of this funding on cross-border transactions while addressing concerns about mandatory disclosure. The absence of remedies or sanctions for non-disclosure is also a matter of concern that warrants thoughtful examination. The article looks closer at the role of courts, tribunals, and arbitral institutions in addressing gaps in the Act. Ultimately, it presents a well-considered set of recommendations for moving forward. Overall, this piece provides a comprehensive and insightful look into the intricate world of third-party funding and its significance within the Nigerian legal system.

매개모델을 이용한 유방암 환자의 증상클러스터 검증 (A Symptom Cluster Analysis of Breast Cancer Patients Using a Mediation Model)

  • 김경덕;장현진
    • 종양간호연구
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    • 제12권4호
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    • pp.274-279
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    • 2012
  • Purpose: This study was conducted to test whether sleep disturbance mediates the effect of pain on fatigue, whether fatigue mediates the effect of pain on depression, and whether fatigue mediates the effect of sleep disturbance on depression. Methods: This study was conducted from September 12th to December 20th, 2011. One hundred eighty-eight breast cancer patients were recruited from D city and S city in Korea. The instruments used in this study were the pain, sleep disturbance, fatigue, and depression scales. Data were analyzed using descriptive statistics, Pearson correlation coefficients, and mediation pathway with the SPSS 12.0 and AMOS 20.0 programs. Results: There was correlation among pain, fatigue, sleep disturbance, and depression. Mediation analyses indicated that pain influences fatigue. sleep disturbance, and depression directly as well as indirectly. Sleep disturbance influences fatigue and depression directly, also fatigue influences depression directly. But sleep disturbance had no direct effect on depression. Conclusion: Significant correlations among the four symptoms supported the existence of the symptom cluster. Effects of pain on fatigue was partially mediated by sleep disturbance, also effects of pain on depression was partially mediated by fatigue. However, the effects of sleep disturbance on depression was fully mediated by fatigue.

취업모의 양가감정과 출산의지에 관한 연구: 다중역할 효능감의 매개효과 중심으로 (Study about Ambivalence and Desire for Child Birth by Working Mothers: Focusing on Mediation Effect of Multiple-role Efficacy)

  • 안정신;최명애
    • Human Ecology Research
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    • 제58권3호
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    • pp.391-400
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    • 2020
  • This study examined the relationship between ambivalence of Korean working mothers for children and their future desire for child birth. This study examined multiple-role efficacy as a mediator in the relationship between ambivalence for their children and future desire for child birth by Korean working mothers having more than one pre-school aged child. This study examined the mediation effect of multiple-role efficacy on the relationship between ambivalence and desire for child birth by working mothers. On-line and off-line survey data from 291 Korean working mothers with more than one pre-school aged child was used for this study. Collected data were analyzed using the PASW 18.0 program and descriptive statistics analyses. Structural equation modeling and bootstrapping were conducted by AMOS 20.0 program. Results showed that ambivalence for children of working mothers having pre-school aged children had no direct influence on future child birth desire. However, their ambivalence had an indirect influence on future child birth desire through multiple-role efficacy and multiple-role efficacy by working mothers had significant effect on child birth desire. In conclusion, the working mothers' multiple-role efficacy had a mediation influence on the relationship between ambivalence for children and desire of child birth. These results were discussed for designing a policy to counter low birth.

대학생들의 전공선택동기가 진로의사결정에 미치는 영향 -진로자기효능감을 매개효과로 (The Impact of the Motives of College Students for Choosing Majors on Career Decision-Making -Using Self-efficacy as a Mediation Effect)

  • 김숙자
    • 한국정보전자통신기술학회논문지
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    • 제11권3호
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    • pp.221-228
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    • 2018
  • 본 연구는 대학생들의 전공선택동기가 진로의사결정에 미치는 영향에 대하여 진로자기효능감을 매개효과로 분석하여 대학생의 진로지도 관련 자료로 활용하고자 한다. 연구대상은 G도에 소재한 4년제 일반대학 5개교 대학생 2, 3, 4학년 1,300명을 비무선적으로 편의표집 하여, 2017년 11월 1일부터 11월 30일까지 설문조사를 실시하였다. 분석방법은 빈도분석, 다중회귀분석, 3단계 매개효과 분석을 하였다. 연구결과 첫째, 전공선택동기는 진로의사결정에 영향을 미치는 것으로 나타났다. 둘째, 전공선택동기가 진로의사결정에 미치는 영향에 대한 진로자기효능감은 부분매개효과를 보이는 것으로 나타났다. 본 연구는 대학생들의 진로지도를 위한 교육의 기초자료가 될 것이다.

현지시장지향성의 매개변수 효과를 통한 다국적기업의 해외시장 투자성과에 대한 실증연구 (An Empirical Analysis on MNC's Investment Performances in a Host Country through Market Orientation Mediation Effects)

  • 임성훈
    • 무역학회지
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    • 제44권2호
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    • pp.221-237
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    • 2019
  • Multinational corporations (MNCs) usually face indigenous business environments in host countries which are different from a home country's. In this circumstance, MNCs would accomplish low-investing performance if they pursuit the same as the home oriented business strategy in the host country. The more different kinds of specialized environments a host countries have, the more pressure of modifying the international strategy needed for MNCs. This paper examines that how a different market environment between a home country and a host country, through MNC's local responsive managements, can influence investing performance in a host country. This paper conducts structural equation analyses with collected empirical data focusing upon a MNC's market orientation efforts and the realization of management localization (i.e., increasing local sourcing intensity or local sales intensity) as mediators between the specialized environment in a host country and the MNC's investing performance. This paper has several contributions in developing the prior approaches: first, the market orientation variables are regarded not as normal independent factors but mediators; second, two step mediation model is examined to make link between host market's heterogeneity and MNC's performance.

The Causal Linkage Between Perceived E-Learning Usefulness and Student Learning Performance: An Empirical Study from Vietnam

  • HUYNH, Quang Linh
    • The Journal of Asian Finance, Economics and Business
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    • 제9권5호
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    • pp.455-463
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    • 2022
  • The current study adds to the body of knowledge about the mediation in the causal link between students' perceptions of the utility of eLearning and their learning performance. The data was collected from 500 questionnaires that were delivered to the students at the Vietnam National University of Ho Chi Minh City. Only 422 finished questionnaires were usable for analyses, indicating a responding rate of 84.4%. Multiple regressions were used to investigate causal correlations, whereas Goodman's (1960) techniques were used to investigate mediating relationships. The major findings reveal that both the utility and adoption of eLearning have an impact on students' learning performance, with usefulness being a crucial determinant of eLearning adoption for study. More meaningfully, statistical evidence on the mediation of adopting eLearning for study in the causal linkage from the usefulness of eLearning perceived by students to their learning performance was provided. The relevance of using eLearning for study is stressed in this study, where it is not only one of the key antecedents of their learning performance, but also acts as a mediator between the usefulness of eLearning and learning performance in the research model.