• 제목/요약/키워드: multiple regressions

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Factors Influencing the Utilization of Needs Assessment Results in the Social Welfare Centers (사회복지기관의 욕구조사결과 활용에 영향을 미치는 요인에 관한 연구)

  • Seo, In-Hae;Kong, Gye-Soon
    • Korean Journal of Social Welfare
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    • v.51
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    • pp.211-228
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    • 2002
  • Despite the importance of the needs assessment activities and the necessity of the systematical investigation on the features of the needs assessment in the social service agencies, it has been observed that the recent NA studies have ignored an important study area of NA, the utilization of needs assessment results in social service agencies. Therefore, this study was undertaken to investigate salient features of the utilization of community needs assessment results, particularly, in the social welfare centers located in Seoul city. A questionnaire was constructed with seven parts, including a dependent variable and 6 independent variables, and 67 questionnaires were collected from 90 agencies during two months. As the result of the descriptive analyses, the five noticeable features were found; (1) the needs assessment results in the agencies was not highly utilized; (2) the attitude on the NA activities was not highly positive because the responders thought that NA activities require too much time from agency staff; (3) agency staff was more actively involved in the NA process than agency directors; (4) the responders thought that quality of NA influences on the utilization of NA; (5) the respondents were confident in carrying out NA although they did not have many opportunities to learn the technical skills of NA research. Multiple regressions were applied to analyze the relationship between independent variables and three kind of dependent variables - conceptual utilization, instrumental utilization, total utilization. The result showed that the conceptual utilization was critically influenced by social workers' confidence on NA, attitude on NA, and directors' involvement in NA. The institutional utilization was influenced by the directors' involvement. The total utilization was influenced by social workers' attitude on NA, confidence on NA, and directors's involvement. Major findings were discussed and several suggestions were made for future research and improvement of the utilization of needs assessment result in social welfare centers.

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Factors analysis of the cyanobacterial dominance in the four weirs installed in of Nakdong River (낙동강의 중·하류 4개보에서 남조류 우점 환경 요인 분석)

  • Kim, Sung jin;Chung, Se woong;Park, Hyung seok;Cho, Young cheol;Lee, Hee suk
    • Proceedings of the Korea Water Resources Association Conference
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    • 2019.05a
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    • pp.413-413
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    • 2019
  • 하천과 호수에서 남조류의 이상 과잉증식 문제(이하 녹조문제)는 담수생태계의 생물다양성을 감소시키며, 음용수의 이취미 원인물질을 발생시켜 물 이용에 장해가 된다. 또한 독소를 생산하는 유해남조류가 대량 증식할 경우에는 가축이나 인간의 건강에 치명적 해를 끼치기도 한다. 그 동안 국내에서 녹조문제는 댐 저수지와 하구호와 같은 정체수역에서 간헐적으로 문제를 일으켰으나, 4대강사업(2010-2011)으로 16개의 보가 설치된 이후 낙동강, 금강, 영산강 등 대하천에서도 광범위하게 발생되고 있어 중요한 사회적 환경적 이슈로 대두되었다. 한편, 대하천에 설치된 보 구간에서 빈번히 발생하는 녹조현상의 원인에 대해서는 전 지구적 기온상승에 따른 기후변화의 영향이라는 주장과 유역으로부터 영양염류의 과도한 유입, 가뭄에 따른 유량감소, 보 설치에 따른 체류시간 증가 등 다양한 의견이 제시되고 있으나, 대상 유역과 수체의 특성에 따라 녹조 발생의 원인이 상이하거나 또는 다양한 요인이 복합적으로 작용하기 때문에 보편적 해석(universal interpretation)이 어려운 것이 현실이다. 따라서 각 수계별, 보별 녹조현상에 대한 정확한 원인분석과 효과적인 대책 마련을 위해서는 집중된 실험자료와 데이터마이닝 기법에 근거로 한 보다 과학적이고 객관적인 접근이 이루어져야 한다. 본 연구에서는 2012년 보 설치 이후 남조류에 의한 녹조현상이 빈번히 발생하고 있는 낙동강 4개보(강정고령보, 달성보, 합천창녕보, 창녕함안보)를 대상으로 집중적인 현장조사와 실험분석을 수행하고, 수집된 기상, 수문, 수질, 조류 자료에 대해 통계분석과 다양한 데이터모델링 기법을 적용하여 보별 남조류 우점 환경조건과 이를 제어하기 위한 주요 조절변수를 규명하는데 있다. 연구대상 보 별 수질과 식물플랑크톤의 정성 및 정량 실험은 2017년 5월부터 2018년 11월까지 2년에 걸쳐 실시하였으며, 남조류 세포수 밀도와 환경요인과의 상관성 분석을 실시하고, 단계적 다중회귀모델(Step-wise Multiple Linear Regressions, SMLR), 랜덤포레스트(Random Forests, RF) 모델과 재귀적 변수 제거 기법(Recursive Feature Elimination using Random Forest, RFE-RF)을 이용한 변수중요도 평가, 의사결정나무(Decision Tree, DT), 주성분분석(Principal Component Analysis, PCA) 기법 등 다양한 모수적 및 비모수적 데이터마이닝 결과를 바탕으로 각 보별 남 조류 우점 환경요인을 종합적으로 해석하였다.

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The Effects of Emotional Intelligence of Teacher and Consciousness of Professionalism on Strategies of Problem Behavior Guidance of Early Childhood (유아교사의 정서지능, 전문성 인식이 유아의 문제행동지도전략에 미치는 영향)

  • Kim, Gab Soon;Park, Yoon Joe
    • Korean Journal of Child Education & Care
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    • v.18 no.4
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    • pp.187-197
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    • 2018
  • Objective: The purpose of this study was to investigate relationship between teacher's emotional intelligence, consciousness of professionalism, and strategies of problem behavior guidance of early childhood. Methods: The subjects in this study were 237 childcare center teachers in Seoul and Gyoungi Province in South Korea. Three different inventories were utilized. As for data analysis, the frequency analysis, reliability analysis, correlation analysis, and Multiple Regressions were conducted through SPSS 21.0 program. Results: The findings of the study were discussed as follows. First, emotional intelligence of teacher had the relationship with strategies of problem behavior guidance of early childhood. Second, consciousness of professionalism of teacher had the relationship with strategies of problem behavior guidance of early childhood. Conclusion/Implications: First, The findings showed that as teachers had the high level of ability in recognizing and expressing their emotion preciously, so the elements triggering the situation of problem were identified and captured, and the ability of use of preventive strategies in advance increased. Second, The findings showed that as teachers had the high level of ability in recognizing and expressing their emotion preciously, so the elements triggering the situation of problem were identified and captured, and the ability of use of preventive strategies in advance increased.

Application of Google Search Queries for Predicting the Unemployment Rate for Koreans in Their 30s and 40s (한국 30~40대 실업률 예측을 위한 구글 검색 정보의 활용)

  • Jung, Jae Un;Hwang, Jinho
    • Journal of Digital Convergence
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    • v.17 no.9
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    • pp.135-145
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    • 2019
  • Prolonged recession has caused the youth unemployment rate in Korea to remain at a high level of approximately 10% for years. Recently, the number of unemployed Koreans in their 30s and 40s has shown an upward trend. To expand the government's employment promotion and unemployment benefits from youth-centered policies to diverse age groups, including people in their 30s and 40s, prediction models for different age groups are required. Thus, we aimed to develop unemployment prediction models for specific age groups (30s and 40s) using available unemployment rates provided by Statistics Korea and Google search queries related to them. We first estimated multiple linear regressions (Model 1) using seasonal autoregressive integrated moving average approach with relevant unemployment rates. Then, we introduced Google search queries to obtain improved models (Model 2). For both groups, consequently, Model 2 additionally using web queries outperformed Model 1 during training and predictive periods. This result indicates that a web search query is still significant to improve the unemployment predictive models for Koreans. For practical application, this study needs to be furthered but will contribute to obtaining age-wise unemployment predictions.

Growth Mindset, Grit and Self-Directed Learning Ability of Nursing Students in Online Education (COVID-19로 인한 온라인학습환경에서 간호대학생의 성장마인드셋, 그릿 및 자기주도학습능력)

  • Lee, Soyoung;Kim, Jiyoung
    • Journal of the Korean Applied Science and Technology
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    • v.38 no.2
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    • pp.567-578
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    • 2021
  • The purpose of this study was to identify the relationship between growth mindset, grit and self-directed learning ability of nursing students and investigate the factors influencing self-directed learning ability in online education. Data were collected through online surveys; subjects were consisted of 194 nursing students from J University in province C. Data were analyzed based on frequency, percentile, mean, Pearson's correlations, and multiple regressions. Self-directed learning ability, mindset, and grit in nursing students showed significant positive correlations with each other. Grit had the strongest influence on nursing students' self-directed learning abilities, followed by satisfaction for major studies, standard of living, interpersonal relations, and growth mindset; these factors accounted for 38.1% of the total variance in self-directed learning abilities among nursing students(Adj. R2=.381, p<.001). Overall self-directed learning ability can be improved by grit, growth mindset enhancement program.

The Effects of Emerging Infectious Disease Knowledge and Clinical Practice Stress on Nursing Students' Coping with Stress (신종감염병지식과 임상실습스트레스가 간호대학생의 스트레스대처방식에 미치는 영향)

  • So Young Lee;Hey Kyoung Kim
    • Journal of the Korean Applied Science and Technology
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    • v.40 no.3
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    • pp.507-520
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    • 2023
  • The purpose of this study is to inquire into the effect on the coping with stress by the knowledge of Emerging infectious disease, clinical practice stress. A research was held to the nursing students living in Seoul and Chungbuk from September 10 to October 10, 2022, 259copies of the data were used for the final analysis, Pearson's correlation coefficient and Multiple linear regressions was used. As a result of the study, there was a positive correlation between clinical practice stress due to burden of work, practice education environment stress, and active coping with stress. Clinical practice stress due to interpersonal conflicts, conflicts with patients, burden of work, and undesirable role models was positively correlated with passive coping with stress. Satisfaction of clinical practice, practical educational environment stress and gender accounted for 15.0% of the total variance in the active stress coping, and burden of work accounted for 7% of the total variance in the passive stress coping. Consequently, this study could be suggested as a basis for counseling and developing practical education program for active coping with stress.

Risk Factors of Falls among Korean Elderly (한국노인의 낙상 요인 연구)

  • Yeom, Jihye;Na, Hang-Jin
    • 한국노년학
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    • v.32 no.2
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    • pp.577-592
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    • 2012
  • The purpose of this study is to examine which factors determine fall experience among Korean elderly. To achieve this purpose, it uses the Korean Longitudinal Study of Aging(KLoSA), wave 1 and 2. Participants aged 65 from wave 1 were selected. From wave 2, a dependent variable was selected and it was fall experiences since the first interview in 2006. Other than this variable, all independent variables were selected from wave 1. In analyses, x2 or t-test were conducted to examine whether independent variables significantly differ between falls and no falls. Then, since a dependent variable consisted of two categories-falls or no falls, multiple logistic regressions were run. Female, using hearing aid, having two diseases, having three or more diseases, depression, and exercise 5 times/a week or more elevated the odds ratios of fall experience. compared to their reference categories. Particularly, if Korean elderly had three or more diseases or depression, their likelihood of fall experience would have about 2 times higher than their reference categories. In conclusion, health practitioners should make the elderly be recognized how much these risk factors are important to falls. Also, Korean government should support Korean elderly having these risk factors to prevent them from falling.

The Influence of the Health Promotion Behaviors on the Life Satisfaction of the Elderly with Diabetes - A Mediating Effect of Depression (당뇨노인의 건강증진행위가 삶의 만족도에 미치는 영향에 대한 우울의 매개효과)

  • Kim, Dong-Bae;Chae, Su-Jin;Cho, Wan- Ki
    • 한국노년학
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    • v.29 no.1
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    • pp.101-116
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    • 2009
  • With increasing elderly living with diabetes, health professionals have focused on the relations between behaviors improving health status and life satisfaction. This research attempts to explain the influence of the health promotion behaviors on the life satisfaction of the elderly with diabetes. Also, we are focusing whether there is a mediating effect of depression between health promotion behaviors and life satisfaction of the elderly with diabetes. 685 persons with diabetes over 60 years of age were selected from the data of KLoSA (Korean Longitudinal Study of Ageing), administered by The National Institute of Labor in 2006. Life satisfaction was measured by 5 items: health status, economic status, relationship with a spouse, relationship with children, and the quality of life. Health promotion behaviors were measured by 4 items: regular diet, exercise, smoking, and drinking. The mediating variable is the depression measured by CES-D10. As the method of analysis, the multiple regressions were used with SPSS 12.0. The result of the study shows that the health promotion behaviors have a positive influence on life satisfaction and a negative influence on depression. It was also verified that the depression variable has a partial mediating effect between health promotion behaviors and life satisfaction. These results present the importance of integrated (physical, psychological, and social) approach for the health promotion experts intervening with the elderly with diabetes.

Living Arrangements and Psychological Distress among Older Korean Immigrants and older Koreans (미주한인 노인이민자와 한국노인의 동거형태와 심리적 고통에 관한 연구)

  • Chang, Miya
    • 한국노년학
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    • v.39 no.3
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    • pp.635-652
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    • 2019
  • A few studies have examined the relationship between living arrangements and mental health status among older Korean immigrants in the United States and older Koreans in South Korea. This study attempts to fill this gap by conducting a comparative study to understand the relationship between living arrangements and psychological distress. Survey data from older Koreans between the ages of 60 and 79 from the two countries (N= 480) was analyzed descriptively and in hierarchical multiple regressions. This study found that among older Korean immigrants in the United States 26.4 % of those living alone and 7.3 % of those living with a spouse only reported 'severe' psychological distress while their counterparts in South Korea 20.0 % of those living alone and 20.6 % of those living with a spouse only reported 'severe' psychological distress. The hierarchical multivariate analysis reveled that older Koreans living alone are not significant predictor of psychological distress in both countries. Interestingly, older Korean immigrants living with a spouse only and living with others are significant predictors of psychological distress. This study also contributes to the existing literature by searching for diverse conditions that lead to mental health problems among older Koreans in both countries.

Investigation of the Correlation between Seoul Neuropsychological Screening Battery Scores and the Gray Matter Volume after Correction of Covariates of the Age, Gender, and Genotypes in Patients with AD and MCI (알츠하이머 치매 및 경도인지기능장애 환자에서 나이, 성별, 유전자형을 고려한 뇌 회백질 부피와 표준신경심리검사와의 상관관계 연구)

  • Lee, Seung-Yeon;Yoon, Soo-Young;Kim, Min-Ji;Rhee, Hak Young;Ryu, Chang-Woo;Jahng, Geon-Ho
    • Investigative Magnetic Resonance Imaging
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    • v.17 no.4
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    • pp.294-307
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    • 2013
  • Purpose : To investigate the correlations between Seoul Neuropsychological Screening Battery (SNSB) scores and the gray matter volumes (GMV) in patients with Alzheimer's disease (AD) and mild cognitive impairment (MCI) and cognitively normal (CN) elderly subjects with correcting the genotypes. Materials and Methods: Total 75 subjects were enrolled with 25 subjects for each group. The apolipoprotein E (APOE) epsilon genotypes, SNSB scores, and the 3D T1-weighted images were obtained from all subjects. Correlations between SNSB scores and GMV were investigated with the multiple regression method for each subject group using both voxel-based and region-of-interest-based analyses with covariates of age, gender, and the genotype. Results: In the AD group, Rey Complex Figure Test (RCFT) delayed recall scores were positively correlated with GMV. In the MCI group, Seoul Verbal Learning Test (SVLT) scores were positively correlated with GMV. In the CN group, GMV negatively correlated with Boston Naming Test (K-BNT) scores and Mini-Mental State Examimation (K-MMSE) scores, but positively correlated with RCFT scores. Conclusion: When we used covariates of age, gender, and the genotype, we found statistically significant correlations between some SNSB scores and GMV at some brain regions. It may be necessary to further investigate a longitudinal study to understand the correlation.