• Title/Summary/Keyword: hierarchical regression analysis

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An Influential Relationship between Urban Culture and Community Spirit (도시문화와 공동체 의식의 영향 관계)

  • Kim, Dong-Yoon
    • Journal of The Korean Digital Architecture Interior Association
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    • v.13 no.4
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    • pp.51-60
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    • 2013
  • With regard to urban culture this study aims to essential understanding and systematic approach to the culture. The "2012 Seoul Survey" report has been used to find out causality among the related variables. In the first place 'satisfaction of cultural condition' was operationally selected as a dependent variable for regression. For the purpose of controlling the third factors for ceteris paribus effect correlation analysis was previously done between the dependent variable and all other variables respectively, which resulted in two groups of variables: group (1) - 2 variables of very significant correlations(p-value<0.01) and (2) - the other 6 variables of significant correlations(p-value<0.05). Then hierarchical regression was adopted to these 2 groups to analyse statistical significance of independent variables, and multicollinearity(VIF; variance inflation factor). Additionally to OLS robust and bootstrapping regressions were done to confirm the validity of this model specification. At last a regression model specified by group (1) as independent variables(they are 'community spirit caring for women, the disabled, the poor and the old,' 'satisfaction of bicycle riding condition' shows that the variables have statistically significant and substantially strong effect on 'satisfaction of cultural condition.' This finding implies the following understanding; (1) urban festivals are regarded as the main of the urban culture as of now and this results from the low level of today's culture, (2) culture is telling and hearing stories but the influential relationship between urban culture and community spirit on the weak is negative, which says that the cultural perception among citizen is somewhat selfish and far from the essential understanding of the urban culture. In spite of restrictive external validity this finding can be used as a direction for promoting culture and a basis for related policy choice in cities.

A Causality between Cultural Satisfaction and Social Trust in Cities (도시인의 문화환경 만족과 사회적 신뢰의 인과성)

  • Kim, Dong-Yoon
    • Journal of The Korean Digital Architecture Interior Association
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    • v.12 no.4
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    • pp.49-57
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    • 2012
  • With regard to the culture in cities this study aims to essential understanding and systematic approach to the culture. The "2011 Seoul Survey"report has been used to find out causality among the related variables. In the first place 'satisfaction of cultural condition' was operationally selected as a dependent variable for regression. For the purpose of controlling confounding factors for ceteris paribus effect correlation analysis was done between the dependent variable and all other variables respectively, which resulted in two groups of variables: group (1) - 6 variables of very significant correlations(p-value<0.01) and (2) - the other 6 variables of significant correlations(p-value<0.05). Then hierarchical regression was adopted to these 2 groups to analyse $R^2$ increment, statistical significance of independent variables, and multicollinearity(VIF; variance inflation factor). At last a regression model specified by group (1) as independent variables(they are 'social trust', 'satisfaction of walking condition', 'happiness index', 'preparation against old age', 'satisfaction of traffic condition' and 'hours for internet') shows that only 'social trust' variable has statistically significant and substantially strong effect on 'satisfaction of cultural condition.' This finding should be accepted on the following understanding; (1) urban culture has a collective attribute formed between people and society, (2) culture is somewhat telling and hearing stories and the confidence between tellers and hearers is essential in the mutual response and (3) stimulus is received by relationship in company with sense, emotion, thinking and action. In spite of restrictive external validity this finding can be used as a direction for promoting culture and a basis for related policy choice in cities.

Variable selection in Poisson HGLMs using h-likelihoood

  • Ha, Il Do;Cho, Geon-Ho
    • Journal of the Korean Data and Information Science Society
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    • v.26 no.6
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    • pp.1513-1521
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    • 2015
  • Selecting relevant variables for a statistical model is very important in regression analysis. Recently, variable selection methods using a penalized likelihood have been widely studied in various regression models. The main advantage of these methods is that they select important variables and estimate the regression coefficients of the covariates, simultaneously. In this paper, we propose a simple procedure based on a penalized h-likelihood (HL) for variable selection in Poisson hierarchical generalized linear models (HGLMs) for correlated count data. For this we consider three penalty functions (LASSO, SCAD and HL), and derive the corresponding variable-selection procedures. The proposed method is illustrated using a practical example.

The Effects of Social Capital on Occupational Aspiration in University Students (대학생의 사회자본이 직업포부에 미치는 영향)

  • An, Kwan-Su;Hwang, Jae-Yeon
    • Journal of the Korea Convergence Society
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    • v.8 no.9
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    • pp.237-247
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    • 2017
  • The Effects of Social Capital on Occupational Aspiration in University Students This study aims to understand the impact of social capital (parent-child relationship, human network, and SNS use) on the occupational aspiration level in university students based on Coleman's Social Capital Concept. To achieve this, statistical significance test was conducted through correlation analysis and hierarchical multiple regression analysis. The major study findings are as follows. As a result of correlation analysis, it was found that Other variables, except for parent's occupational of social capital had a positive effect on vocational aspiration. Also. as a result of hierarchical multiple regression analysis, it was found that parent-child relationship, human network obtained from social activities, Social Networking Service use and usefulness of information - social capital factors - had a statistically significant impact on occupational aspiration. Such findings suggest that the process of possessing and acquiring social capital among university students served as an important achievement-oriented value in terms of social mobility.

Analysis of Medical and Korean Medical Services Utilization after Lumbar Surgery Patients: Using Health Insurance Review and Assessment Service's Patients Sample Data (요추수술 후 환자의 의과 및 한의과 의료기관 이용 행태 분석: 건강보험심사평가원 표본데이터를 이용하여)

  • Ye, Sung-ae;Kim, Nam-Kwen;Song, Yun-kyung
    • Journal of Korean Medicine Rehabilitation
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    • v.29 no.4
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    • pp.89-100
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    • 2019
  • Objectives We are going to analyze patient's medical and Korean medicine use trends after lumbar surgery, and examine the percentage of use of Korean medicine after surgery and its relevance to the medical care outcome after lumbar surgery. Methods Using 3% patients' sample data of the Health Insurance Review and Assessment Service, two groups were compared the treatment progress of the Korean Medicine treatment group and the untreated group after lumbar surgery by hierarchical logistic regression analysis. After hierarchical logistic regression analysis(including propensity scores), two groups were compared after lumbar surgery, the Korean Medicine treatment group within 50days and untreated group within 50days. Results Lumbar surgery was performed in 2750 patients in 2015. It was 3.72 that the risk(odds ratio) of finished treatment of patients treated without Korean Medicine, compared to patients with Korean Medicine. It was 0.12 that the risk of continuing treatment(odds ratio) of patients treated with Korean Medicine within 50 days, compared to patients treatment more than 50 days. Conclusions The ratio of Korean Medicine treatment after lumbar surgery was 14.8%. The group that did not have Korean Medicine showed a higher possibility of treatment termination than the group who did not. Among the groups treated with Korean Medicine, the early treatment group was more likely to end treatment than the late treatment group. Considering various situations in the medical environment, further studies such as prospective studies and long-term data analysis are considered to be necessary.

Factors Affecting the Individual Innovative Behaviors of Tertiary Hospitals' Nurses: Focusing on the Individual, Job and Organizational Factors (상급종합병원 간호사의 개인 혁신행동 영향요인: 개인차원, 직무차원, 조직차원을 중심으로)

  • Kim, Ji Hye;Kim, Yu Jeong
    • Journal of Korean Clinical Nursing Research
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    • v.27 no.1
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    • pp.35-44
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    • 2021
  • Purpose: The aim of this study was to identify the individual, job, and organizational factors affecting the individual innovative behaviors among tertiary care hospitals' nurses. Methods: The participants in this study were 230 nurses who have worked more than one year in tertiary care hospitals. Data were collected using self-administered questionnaires that included individual factors (self efficacy, and empowerment), job factors (knowledge and skills for evidence-based practice, and beliefs for evidence-based practice), organizational factors (perceived organizational support), and individual innovation behavior. The SPSS/WIN 25.0 program was used for data analysis which included descriptive analysis, t-test, ANOVA, Scheffé test, Pearson's correlation coefficient, and hierarchical regression analysis. Results: Individual innovative behavior had significant positive correlations with all of individual, job, and organizational factors. The results of hierarchical regression analysis showed that knowledge and skills for evidence-based practice (β=.28, p<.001), self efficacy (β=.25, p=.002), gender (female, β=.23, p<.001), and beliefs for evidence-based practice (β=.17, p=.016) were significant factors influencing on individual innovative behavior. Conclusion: These findings suggest that knowledge, skills and beliefs for evidence-based practice, and self efficacy were linked to individual innovative behaviors. Therefore, education and human resource management improving self efficacy, knowledge, skills and beliefs for evidence-based practice are needed to increase nurses' individual innovative behaviors in tertiary care hospitals.

Analysis of the Influence of Young Job Seekers' SME Employer Brand Awareness on Their Intention to Work (청년구직자의 중소기업 고용주 브랜드 인식이 취업의향에 미치는 영향 분석)

  • Lee, Junghwan;Kim, Dongwook
    • The Journal of the Korea Contents Association
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    • v.22 no.4
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    • pp.292-300
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    • 2022
  • This study aims to improve the situation in which accurate job information for small and medium-sized enterprises is not known and it is difficult to identify jobs that meet the preference criteria from the perspective of the 'employer brand'. To this end, through a hierarchical regression analysis of 700 young job seekers, the factors affecting the intention to get a job centered on five value factors (Interest Value, Social Value, Economic Value, Development Value and Application Value) were identified by reflecting the brand categorization theory. As a result of the analysis, it was confirmed that young job seekers are more interested in work culture, environment, and utilization of their majors, which directly affect job seekers, rather than characteristics of companies such as talent development, products, services, and management, and are influenced by their intention to work. This suggests that the job policy for SMEs needs to be changed from the existing quantitative support-centered to a qualitative improvement that strengthens the use of platform-centered job information.

Moderating Effect of LOC on the Relationships between Transformational & Transactional Leadership and Organizational Citizenship Behavior (변혁적 리더십과 거래적 리더십이 조직시민행동에 미치는 영향에 대한 LOC의 조졀효과검증)

  • Choi, Chung-Sik;Ahn, Jong-Tae;Kim, Jung-Won
    • Journal of Korean Society for Quality Management
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    • v.35 no.4
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    • pp.89-100
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    • 2007
  • The Purpose of this study was to investigate the relationship between transformational leadership and organizational citizenship behavior(OCB), and the relationship between transactional leadership and organizational citizenship behavior as well as to test the moderating effects of the Locus of Control(LOC) as the personal characteristics variable. The sample for this study consisted of 356 administrative employees from 18 universities located in Chung-Nam Province. Cronbach's alpha factor analysis, multiple regression analysis and hierarchical multiple regression were used for the statistical methods. The practical implications of the findings and suggestions for future research were discussed.

The Effect of the Stress and the School Adjustment on the Ego-Resiliency of Juveniles in Correctional Facility (교정시설 청소년이 지각하는 스트레스와 학교생활적응이 자아탄력성에 미치는 영향)

  • Kim, Youn-Soon;Um, In-Sook
    • Journal of Families and Better Life
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    • v.27 no.2
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    • pp.99-109
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    • 2009
  • The purpose of this study was to investigate the effect of the stress and the school adjustment on the ego-resiliency of juvenile. The sample size of this study is 283, which makes it possible to do statistical inferences. As statistical methods, multiple regression analysis and hierarchical regression analysis with SPSS 10.0 is used. The results were as follows: First, friends part, among the four sub-factors of stress, affect negatively ego-resiliency. Second, interest about school life, among the three sub-factors of school adjustment, affect positively ego-resiliency. Third, observation of school norm, among the three sub-factors of school adjustment, affect negatively ego-resiliency. Based of these results, this study suggested that how to elevate ego-resiliency of juvenile delinquencies.

Self-Esteem of the Schooler of Families in Poverty (빈곤가족에서의 학령기 아동의 자존감 - 제주도내 초등학교 아동을 중심으로 -)

  • Kang Hee-Kyung
    • Child Health Nursing Research
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    • v.9 no.3
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    • pp.301-308
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    • 2003
  • The Purpose of this study was to identify factors that influence the self-esteem of the schooler of families in poverty. A descriptive, correlational, and cross-sectional study design was used. The data were collected from February to March, 2001. Convenient sampling was done from 194 subjects living in Jeju Do, but 167 subjects among these were used for the study analysis. Hierarchical Stepwise Regression was used to identify significant factors. The results of this study were as follows: In general, self-esteem status of the schooler in poor families was relatively poor. In stepwise regression analysis, self-esteem status was significantly influenced by emotional home environment, duration of poverty and frequency of parent-child tactics. These variables explained 26.8% of the variance of schooler's self-esteem. Conclusively, it is recommended that nursing intervention programs for schooler in poor family should be a focus to enhance the economic context as well as family effect.

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