• Title/Summary/Keyword: Structural equational model

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Exploring a Way to Overcome Multicollinearity Problems by Using Hierarchical Construct Model in Structural Equation Model (SEM에서 위계모형을 이용한 다중공선성 문제 극복방안 연구 : 소셜커머스의 재구매의도 영향요인을 중심으로)

  • Kwon, Sundong
    • Journal of Information Technology Applications and Management
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    • v.22 no.2
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    • pp.149-169
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    • 2015
  • This study tried to find out how to overcome multicollinearity problems in the structural equation model by creating a hierarchical construct model about the repurchase intention of social commerce. This study selected, as independent variables, price, quality, service, and social influence, based on literature review about social commerce, and then, as detailed variables of independent variables, selected system quality, information quality, transaction safety, order fulfillment and after-sales service, communication, subjective norms, and reputation. As results of empirical analysis about hierarchical construct model, all the independent variables were accepted having a significant impact on repurchase intention of social commerce. Next, this study analyzed the competition model that eight independent variables of price, system quality, information quality, transaction safety, order fulfillment and after-sales service, communication, subjective norm, and reputation directly influence the repurchase intention of social commerce. As results of empirical analysis, system quality, information quality, transaction safety, communication appeared to be insignificant. This study showed that hierarchical construct model is useful to overcome the multicollinearity problem in structural equational model and to increase explanatory power.

The Effect of Loneliness on Health Status in Older Adults: An Examination of the Mediating Role of Depression (노인의 고독이 건강상태에 미치는 영향: 우울의 매개효과 검증)

  • Hwang, Hwan;Lee, Sunhae
    • Korean Journal of Social Welfare
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    • v.66 no.4
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    • pp.207-232
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    • 2014
  • This study intended to understand the way loneliness and depression affect psychological and physical health of older adults, and conducted a structural equational modeling of a relationship among loneliness, depression and health status of older adults. A survey was conducted on 329 individuals who were utilizing senior welfare agencies located in Seoul and the surrounding cities. The study examined the effects of loneliness and depression on their health status as well as the role of depression in this process. The data analysis showed a good fit of the structural model and suggested an evidence of depression fully mediating the effect of loneliness on health status. This result indicated that the current focus of services on increasing quantity of social contact among older people may need a paradigm shift towards improving their subjective loneliness and quality of interpersonal relationships.

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Structural Equation Modeling on Nursing Productivity of Nurses in Korea (간호생산성 영향요인 구조모형 분석)

  • Kim, Se Young;Kim, Eun-Kyung;Lim, Heon Man;Lee, Mi Young;Park, Kwang-Ok;Lee, Kyoung A
    • Journal of Korean Academy of Nursing
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    • v.43 no.1
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    • pp.20-29
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    • 2013
  • Purpose: The purpose of this study was to propose and test a predictive model that could explain and predict nursing productivity. Methods: A survey using a structured questionnaire was conducted with 360 nurses in Korea. The data were analyzed using SPSS Windows 18.0 and AMOS 19.0 program. Results: Based on the constructed model, burnout and organizational commitment were found to have direct effects on nurses' turnover intention and nursing productivity. While nursing work environment was found to have indirect effects on nurses' turnover intention and nursing productivity. Conclusion: This structural equational model is a comprehensive theoretical model that explains the related factors and their relationship with nursing productivity. Comprehensive organizational interventions to improve nursing productivity should focus on improving the nursing work environment. Findings from this study can be used to design appropriate strategies to decrease nurse turnover in Korea. Further studies are needed to prospectively verify these causal relationships with larger samples.

Structural Equation Model for Job Stress in Intensive Care Unit Nurses (중환자실 간호사의 직무 스트레스 관련 변인들 간의 구조모형 분석)

  • Jin, Su Jin;Lee, Ji Hyun
    • Korean Journal of Occupational Health Nursing
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    • v.24 no.2
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    • pp.103-113
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    • 2015
  • Purpose: This study was to construct a structural equational model for explaining and predicting job stress of intensive care unit (ICU) nurses based on the Integrated model of stress of Ivancevich and Matteson (1980). Methods: The subjects of this study were 220 nurses at ICU. The data were collected from August 5 to 30, 2013 through self-reporting questionnaire survey. Results: According to the hypothetical model of this study, perceived nursing practice environment, perceived role conflict, perceived transformational leadership and perceived self-esteem showed statistically significant effects on job stress of ICU nurses directly. Professional self-concept indirectly affect job stress of ICU nurses. In conclusion, job stress of ICU nurses was directly influenced by nursing practice environment, role conflict, transformational leadership and self-esteem. Professional self-concept of the relationships among variables did not have a direct impact on job stress. Conclusion: Based on the results of this study, it is needed to develop stress management measures and programs considering these variables in order to adequately manage job stress of ICU nurses.

Structural Relationship of Burnout and Related Variables among Family Caregivers of Cancer Patients (암 환자 가족원의 소진 관련 변인들 간의 관계 구조)

  • Hong, Min Joo;Tae, Young Sook
    • Journal of Korean Academy of Nursing
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    • v.43 no.6
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    • pp.812-820
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    • 2013
  • Purpose: The purpose of this study was to construct a structural equational model to explain and predict burnout in family caregivers of patients with cancer. The study was based on the Stress-Appraisal-Coping Model of Lazarus and Folkman (1984) and Family Stress Theory (Hill, 1958). Methods: Data were collected from July 10 to September 30, 2012 through direct interviews and a self -report questionnaire survey. Participants in this study were 206 family caregivers providing care for patients with cancer in In-patient or Out-patient departments of three different general hospitals located in Busan. Measured variables were exogenous variables (social support and perceived health status) and endogenous variables (perceived stress, hope and burnout). Results: Goodness of fit in the hypothetical model was ${\chi}^2=174.07$, TLI=.95, CFI=.97, RMSEA=.08. Perceived health status, perceived stress, and hope showed statistically significant direct effects on burnout of family caregivers. Social support affected burnout of family caregivers indirectly. These variables explained 68.5% of total variance in burnout. Conclusion: The results from this study suggest that perceived stress, perceived health status, and hope should be considered as major influential factors when developing nursing interventions to control burnout of family caregivers (of patients with cancer).

A Predictive Model on Turnover Intention of Nurses in Korea (간호사의 이직의도 예측모형)

  • Moon, Sook-Ja;Han, Sang-Sook
    • Journal of Korean Academy of Nursing
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    • v.41 no.5
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    • pp.633-641
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    • 2011
  • Purpose: The purpose of this study was to propose and test a predictive model that could explain and predict Korean nurses' turnover intentions. Methods: A survey using a structured questionnaire was conducted with 445 nurses in Korea. Six instruments were used in this model. The data were analyzed using SPSS 15.0 and Amos 7.0 program. Results: Based on the constructed model, organizational commitment, and burnout were found to have a significant direct effect on turnover intention of nurses. In addition, factors such as empowerment, job satisfaction, and organizational commitment were found to indirectly affect turnover intention of nurse. The final modified model yielded ${\chi}^2$=402.30, p<.001), ${\chi}^2$/df=2.94, RMSEA=0.07, RMR=0.03, GFI=0.90, AGF=0.87, NFI=0.88, CFI=0.92 and good fit indices. Conclusion: This structural equational model is a comprehensive theoretical model that explains the related factors and their relationship with turnover intention in Korean nurses. Findings from this study can be used to design appropriate strategies to further decrease the nurses' turnover intention in Korea.

A Structural Equation Model of Nurses' Turnover Intention (간호사의 이직의도 구조모형)

  • Kim, Chang-Hee;Yang, Seung-Sun;Kim, Yeon-Ja;Son, Yeon-Jung;You, Mi-Ae;Song, Ju-Eun
    • Journal of Korean Academy of Nursing Administration
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    • v.15 no.4
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    • pp.550-562
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    • 2009
  • Purpose: The purpose of this study was to construct and test a structural equation model of nurses' turnover intention. Method: The participants were 716 nurses at 4 university hospitals. Data were collected by a self-report questionnaire in 2008 and analyzed using SPSS 12.0 and AMOS 4.0 Win program. Results: The fit indices of modified model were $x^2=285.928$(p<.001), $x^2/df=1.958$, GFI=0.964, RMSEA=0.037, AGFI=0.944, NFI=0.947, NNFI=0.961, CFI=0.973, PNFI=0.658 and showed high compatibility with the empirical data. In the final model, job stress and satisfaction were found to have significant direct effects on nurses' turnover intention, while organizational culture and emotional labor were very important factors to have indirect effects on turnover intention via job stress and satisfaction. Nurses' turnover intention was accounted for 41.2% of covariance by these factors. Conclusions: Comprehensive nursing interventions for decreasing nurses' turnover intention should be focused on reducing job stress and increasing job satisfaction. Also, Nursing strategy for enhancing positive organizational culture and decreasing emotional labor would be helpful for decreasing nurses' turnover intention, too. Further studies are needed to prospectively conduct to verify these causal relationships with larger sample.

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The Effects of Country Image, Attitudes toward a Country, and Purchase Emotion on Purchase Intention of Fashion Products with a Korean Images - Focusing on Korean Female Consumers - (국가이미지, 국가에 대한 태도, 구매감정이 한국적 이미지 패션상품 구매의도에 미치는 영향 - 한국 여성 소비자를 중심으로 -)

  • Cho, Yun-Jin;Lee, Yu-Ri;Kim, Ha-Yeon
    • Journal of the Korean Society of Costume
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    • v.59 no.10
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    • pp.111-123
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    • 2009
  • This study investigated the multifaced country image. The casual relationships among the multifaced country image, attitudes toward a country, and purchase emotion and purchase intention of fashion products with Korean images were also investigated. To conduct a quantitative analysis, we collected data from 296 Korean female consumers. SPSS 12.0 and AMOS 5.0 packages were used for statistical analysis. The results of this study as follows. To identify components of country image of Korea, exploratory and confirmatory factor analyses were conducted. This procedure produced five components such as culture, technique/product, ethical values, nationality, and space. Structural equational model was used to analyze the relationships among the country image, attitudes toward a country, purchase emotion, and purchase intention of fashion products with Korean image. The proposed model was verified.

Internet Addiction, Depression and Suicidal Ideation among Adolescents (청소년들의 인터넷 중독과 우울 및 자살생각과의 연관성)

  • Jeon, Eunryoung;Lee, Heon-Jeong;Chun, Byung Chul
    • Journal of the Korean Society of School Health
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    • v.25 no.2
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    • pp.214-221
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    • 2012
  • Purpose: This study was to assess the association of internet addiction and depression, stress and suicidal ideation among adolescents. Methods: The authors have surveyed 2 middle schools and 2 high schools located in Seoul and analyzed 525 questionnaires. The questionnaire included the Internet Addiction Self Diagnosis Index (K-index), Child Depression Index (CDI), Stress Index and Reynold's Suicidal Ideation Index. Structural equational model analysis was done to explore the association between internet addiction and suicidal ideation. Results: The adolescent internet addiction groups were classified as the high risk group 12 (2.3%), the potential risk group 64 (12.2%) and the normal group 449 (85.5%). When classified according to sex, the high risk group is consisted of 8 (3.9%) boys, 4 (1.3%) girls and the potential risk group is consisted of 41 (64.1%) boys and 23 (35.9%) girls which leads to the conclusion that boys are relatively more addicted compared with girls. The group with more addiction showed higher depression scores, stress scores and suicidal ideation scores. The correlation analysis showed the significant relations between internet addiction and depression (r=0.263), stress (r=0.265) and suicidal ideation (r=0.284). According to the structural equation model analysis, internet addiction had direct effects on the depression and indirect effects on suicidal ideation. Stress had the significant direct effects on both internet addiction and depression. Depression had a significant direct effect on suicidal ideation. Conclusion: Internet addiction affects directly and indirectly an depression and suicidal ideation among adolescent.

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Fashion Orientation, Goal-directed or Experiential Motivations, Shopping Flow Experience and Purchasing Behavior of Fashion Products (패션지향성, 목적지향적/체험적 쇼핑동기, 플로우 경험과 패션제품 구매행동)

  • Lee, Kyu-Hye;Choi, Ja-Young
    • Journal of the Korea Fashion and Costume Design Association
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    • v.13 no.2
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    • pp.185-193
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    • 2011
  • The purpose of this study was to examine the relationships among fashion orientation, shopping motivations, shopping flow experience, and purchases of fashion products. Two types of shopping motivations were employed in the study: goal-directed and experiential. A conceptual research model was developed using research variables and structural equational modeling was used to test hypotheses. Empirical results indicated that fashion orientation had a strong positive direct effect on both types of shopping motives. Experiential and goal-directed motivations both had significant influence on shopping flow experience by consumers. During this process the influence of experiential motivation on flow experience was stronger, which implies the importance of experiential motivation on shopping fashion products. In addition, shopping flow experience played an important role in fashion product purchasing. Results of this study suggest that retailers should take into consideration flow in the context of shopping.

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