• Title/Summary/Keyword: 공분산구조분석

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A Study on the Verification of Mediation with Flow and Trust in ISM (인터넷 쇼핑몰에서 플로우와 신뢰의 매개성 검증에 관한 연구)

  • 정광진;이대용
    • Proceedings of the Korea Society for Industrial Systems Conference
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    • 2003.11a
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    • pp.693-703
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    • 2003
  • 최근 인터넷 쇼핑몰과 관련된 연구가 다양하게 이루어지고 있다. 또한 쇼핑몰 사용자의 경험적인 측면의 중요성이 제기되면서 많은 연구에서 이를 플로우란 개념으로 설명하고 있다. 본 연구는 인터넷 쇼핑몰에서의 최적 경험으로서의 플로우와 그 동안 인터넷 쇼핑몰 관련 연구에서 쇼핑몰에서의 고객 만족과 긍정적 관계에 대해 논의가 있어온, 신뢰와 만족과의 관계를 상호 독립적이 아닌 종합적 측면에서 매개성에 관한 검증을 위해 공분산 구조 분석을 통해 경쟁모델화 하여 비교함으로써 우수 모델을 도출하였다. 그 결과 인터넷 쇼핑몰에서 플로우와 신뢰는 상호 독립적인 관계를 고려한 모델 보다 동시성 차원의 매개성의 관계를 모두 고려한 포화모델이 우수한 모델로 도출되었다.

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A Study on Water Quality Variation Characteristics and Basin Management Plan Using Factor Analysis (요인분석을 이용한 유역별 수질 변동특성 파악 및 관리방안 연구)

  • Jung, Woo Suk;Cho, Bu Geon;Kim, Young Do;Lee, Joo Heon
    • Proceedings of the Korea Water Resources Association Conference
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    • 2018.05a
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    • pp.42-42
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    • 2018
  • 과거의 수질관리는 오염물질의 수질농도에 중심을 맞춰서 이루어져왔다. 하지만 최근 국내에 수질오염총량관리제도가 도입되고 시행되면서 농도 중심의 규제보다 과학적인 접근 방법으로 균형적인 국가개발과 함께 수질보전을 이루는 성과를 나타내고 있다. 따라서 우리나라 물관리 종합대책은 수질관리대책에서 통합유역관리체제로 전환되고 있으며, 새로운 물환경 정책추진 기반 구축과 하천환경변화에 따른 유역 관리방안이 필요한 실정이다. 따라서 본 연구에서는 각각의 유역특성이 명확한 시범 유역으로 황강, 남강, 금호강 유역을 선정하였으며, 수질측정망 자료와 기상관측소 자료를 활용한 요인분석을 통해 수질-기상 항목 간의 공분산과 상관관계 등을 이용하여 변수들 간의 상호관계를 분석하였다. 요인분석 결과를 토대로 문항과 변수들 간의 상관성 및 구조를 파악하여 여러 변수들이 지닌 정보를 적은 수의 요인으로 묶어서 유역별 수질 변동특성을 파악하였다. 요인 분석결과를 토대로 시범유역별 유역특성을 평가하고 상세진단을 통해 향 후 유역별 관리체계의 방향성을 제시하고자 하였다.

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A Study on Behavioral Factors for the Safety of Ambulance Driving by Coefficiencial Structural Analysis (구급차 안전사고에 대한 공분산 구조분석)

  • Jo, Jeanman;Lee, Tae-Yong
    • The Korean Journal of Emergency Medical Services
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    • v.4 no.1
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    • pp.95-100
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    • 2000
  • This is a study to evaluate the effects of the safety of ambulance driving and traffic accidents and to provide statistic information for the various factors to reduce the ambulance traffic accidents. The major instruments of this study were Korean Self-Analysis Driver Opinionnaire. This Questionnaire contains 8 items which measure drivers' opinions or attitudes: driving courtesy, emotion, traffic law, speed, vehicle condition, the use of drugs, high-risk behavior, human factors. The total of 145 divers were investigated ambulance drivers in Taejon City and others(6 City) from 2000. 5. July to 2000. 11. July. The data were analyzed by the path analysis - with SPSS and AMOS package program. The result are as follows : 1. It have suggested that risk factors of ambulance traffic accident much affected with emotion and speed control on safety ambulance driving(Y(Accident) = $0.88{\times}1$(Emotion Control) + $0.92{\times}2$(Speed) - $0.46{\times}3$(Traffic Law)+E). 2. It have suggested that risk factors of ambulance traffic accident much affected with emotion and speed control on safety ambulance driving(Y(Accident) = $0.398{\times}1$(Emotion Control) + $0.500{\times}2$(Speed) - $0.263{\times}3$(Traffic Law)+E) by coefficiecial structural analysis.

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Relationship among Followership, Organizational Cynicism, Organizational Citizenship Behavior in Hotel Employee (호텔기업 구성원의 팔로워십, 조직냉소주의, 조직시민행동 영향 관계)

  • Chung, Hyun-Young;Lee, Sang-Woo
    • The Journal of the Korea Contents Association
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    • v.11 no.7
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    • pp.448-457
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    • 2011
  • The purpose of this research investigates the relationship among followership, organizational cynicism, and organizational citizenship behavior in Hotel employee. The data are analyzed by such frequency analysis, exploratory factor analysis, reliability analysis, confirmatory factor analysis, covariance structure analysis. The SPSS 10.1 and AMOS 4.0 for Windows program was used to investigate material. The major finding and implication can be summarized as follow: First, the analysis on relationship between followership and organizational cynicism revealed that critical thinking and active participation dimensions of but enthusiasm dimension of followership has not affected organizational citizenship behavior. Second, the analysis on relationship between organizational cynicism and organizational citizenship behavior revealed that organizational cynicism affects organizational citizenship behavior.

A Study on the Diagnostic Model of Cross-national Digital Divide (국가간 정보격차 진단 모형 개발에 관한 연구)

  • Lee, Hohyung
    • Journal of Information Technology and Architecture
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    • v.11 no.1
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    • pp.99-111
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    • 2014
  • Today, through developing country's Official Development Assistance (ODA) project, Republic of Korea is giving help in establishing communication networks, furnishing PCs and etc, as a help of information base expansion. And to resolve digital divide between countries, Republic of Korea's IT service group dispatch business has also significantly contributed to enhance information application level of developing countries. The conclusion and suggestion of this study is as follow. It is obvious that utilization of information can be affected by capability improvement of developing country's informatization level. However, developing informatization strategy level and environment in long term wise will cause greater influence than to raise immediate informatization base level. Overall, settlement of long term digital divide seems possible when we elevate developing countries' informatization strategy level and environment.

The Effects of Employee's Perception of HR Practices on Organization Commitment and Turnover Intention: The Mediated Effect of Career Plateau (인사제도에 대한 구성원 인식이 조직몰입 및 이직의도에 미치는 영향: 경력정체성의 매개효과를 중심으로)

  • Song, Min-Young;Kim, Seung-Yong
    • The Journal of the Korea Contents Association
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    • v.19 no.8
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    • pp.453-464
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    • 2019
  • This study was to draw some managerial implications by examining the role of content career plateau, an individual's perception that one's own career is stagnated, in the relationship between the members' perception on HR practices and organizational commitment/turnover intention. The result showed that the perception on education/training practices has positive influence on organizational commitment, and a negative effect on turnover intention and career plateau. However, the perception on evaluation/compensation was shown to have no direct impact either on organizational commitment or on turnover intention. In addition, career plateau served as a partial mediator only between the perception on education/training practices and the attitudinal variables. Based on the results, some managerial/practical implications and suggestions for future research on career plateau are discussed.

A Stagewise Approach to Structural Equation Modeling (구조식 모형에 대한 단계적 접근)

  • Lee, Bora;Park, Changsoon
    • The Korean Journal of Applied Statistics
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    • v.28 no.1
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    • pp.61-74
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    • 2015
  • Structural equation modeling (SEM) is a widely used in social sciences such as education, business administration, and psychology. In SEM, the latent variable score is the estimate of the latent variable which cannot be observed directly. This study uses stagewise structural equation modeling(stagewise SEM; SSEM) by partitioning the whole model into several stages. The traditional estimation method minimizes the discrepancy function using the variance-covariance of all observed variables. This method can lead to inappropriate situations where exogenous latent variables may be affected by endogenous latent variables. The SSEM approach can avoid such situations and reduce the complexity of the whole SEM in estimating parameters.

Structural Relationships between Lifestyle Attributes, Positive Emotion, and Satisfaction: The Case of University Students Who Visit Coffeehouses (라이프스타일 유형별 특성, 긍정감정, 만족도의 구조적 관계 - 커피전문점 이용 대학생을 중심으로 -)

  • Kwon, Na-Kyung;Lee, Yeon-Jung
    • Culinary science and hospitality research
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    • v.21 no.3
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    • pp.116-129
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    • 2015
  • In order to maximize customer satisfaction and provide differentiated customer-oriented marketing strategies, it is important to understand the essence of consumer behavior and characteristics of their market segmentation. Therefore, this study explored the relationships among five different food-related lifestyle (i.e., health, fashion, taste, economy and safety oriented), positive emotion, and satisfaction. An analysis of 338 samples drawn from college students who visited coffeehouse at least once in the previous months was performed. The results revealed that, taste, economy, and safety oriented lifestyle significantly affected positive emotion, and positive emotion significantly affected satisfaction. The findings highlight the significant role of coffeehouse customer food-related lifestyle toward positive emotion in the formation of satisfaction, and therefore generate theoretical and practical implications for the coffeehouse industry.

Use of a Structural Equation Model for the Long-term Evaluation of Hydrological Cycles in the Seolmacheon and Cheongmicheon Basin (구조방정식모형을 이용한 설마천 유역과 청미천 유역의 장기 수문순환 평가)

  • Kim, Soeun;Yoo, Chulsang;Lee, Munseok;Song, Sunguk
    • Journal of Wetlands Research
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    • v.23 no.4
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    • pp.277-286
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    • 2021
  • This study compares the long-term hydrological cycles of the Seolmacheon and Cheongmicheon basin by applying the structural equation model (SEM). These two basins are found different especially in their land-use pattern. Both basins have the actual evapotranspiration data measured by the eddy-covariance method as well as the rainfall and runoff data. The length of the data considered in this study is nine years from 2010 to 2018. The structure of the SEM is determined by considering the correlations among the data as well as the general knowledge on the hydrological cycle. As a result, a total of three SEMs are applied sequentially to analyze their fittings. As irony would have it, two basins are found to be similar in the application of one SEM, but different in the application of another. Especially, when considering the feedback process between precipitation and evapotranspiration, two basins are found to be very different. That is, the feedback process between precipitation and evapotranspiration is found to be significant in the Cheongmicheon basin where the portion of agricultural area (i.e., paddy) is more than 40%.

User Acceptance Factors of u-Health System - For Converged Smart Health (유헬스 시스템의 사용자 수용 요인 연구 - 융합형 양방향 스마트 헬스를 위한)

  • Kim, Mincheol
    • Journal of Digital Convergence
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    • v.11 no.4
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    • pp.321-330
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    • 2013
  • Lately, in accordance with the improvement of living standards and income level, concern about the health is continuously increasing and the desire is also becoming diverse. This study focused on the user's acceptance of converged smart u-health system. For the study purpose, this paper analyzed the health and technology factors influencing the user's acceptance on u-health system. Thus this study was carried out by using covariance based SEM in order to test the model fitness and path coefficient. As the results, the health management experience among HPM factors and perceived usefulness among TAM had a positive effect on attitude and the perceived usefulness had a direct effect on behavioral intention.