• Title/Summary/Keyword: Coefficient of Variance

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Effects of Dysfunctional Customer Behavior, Job Stress and Stress Copying on Job Satisfaction in Insurance Solicitors (고객공격행동, 직무스트레스, 스트레스 대처가 보험설계사의 직무만족도에 미치는 영향)

  • Lee, Sang-Hoon;Park, Seul-Ki
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.9
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    • pp.578-588
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    • 2016
  • Job satisfaction is the primary factor in determining happiness, so people change jobs when they aren't satisfied. In the case of insurance solicitors, high turnover rates imply low job satisfaction. Job stress impacts job satisfaction, and job stress is particularly prominent for insurance solicitors whose job involves working with customers face- to- face. The purpose of this study is to investigate factors influencing job satisfaction for insurance solicitors. Participants in this study consisted of 245 insurance solicitors from 3 insurance company located in Seoul, Kyonggi province and Kyongsang province. Data was collected from self-administrated questionnaires and analyzed using independent t-test, ANOVA, Pearson's Correlation Coefficient, and multiple regression. Job satisfaction showed a significant correlation with dysfunctional customer behavior, job stress, and ability to cope with stress. The main factors of job stress, stress coping ability, and income level had significant influence on job satisfaction for insurance solicitors. The explained variance for job satisfaction was 34%. These findings provide empirical evidence for the importance of job stress and stress coping variables in job satisfaction for insurance solicitors. This study aims to assist in predicting insurance solicitor's job satisfaction.

The Influence of Life Stress, Ego-Resilience, and Spiritual Well-Being on Adaptation to University Life in Nursing Students (간호대학생의 생활스트레스, 자아탄력성 및 영적안녕이 대학생활 적응에 미치는 영향)

  • Son, Hye Gyeong;Kwon, Suhye;Park, Hyun-Joo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.5
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    • pp.636-646
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    • 2017
  • This study examined the factors influencingthe adaptation to university life of nursing students. Data were collected from 235 nursing students in three nursing schools in B and C city from November 15 to December 10, 2016, and analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, and stepwise multiple regression. Correlations were found between adaptation to university life and life stress (r=-0.657, p<0.001) and between ego-resilience (r=0.455, p<0.001) and spiritual well-being (${\beta}=0.210$, p=0.025)(r=0.494, p<0.001). The adaptation to university life in participants showed a significant correlation between life stress (r=-0.657, p<0.001), ego-resilience (r=0.455, p<0.001), and spiritual well-being (r=0.494, p<0.001). The significant factors influencing the adaptation to university life were life stress (${\beta}=-0.418$, p<0.001), health status(${\beta}=0.213$ p<0.001), spiritual well-being (${\beta}=0.210$, p=0.025), satisfaction with major (${\beta}=0.146$, p=0.003), and ego-resilience (${\beta}=0.109$, p<0.001); these factors explained 56.5% of the variance. The findings suggest that adequate educational strategies are needed to reduce the life stress and increase health status, spiritual well-being, satisfaction on major, and ego-resilience in nursing students to promote their adaptation to university life.

Factors Influencin Resilience in Nursing Students (간호학생의 적응유연성에 영향을 미치는 요인)

  • Park, Mi-Hyang
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.11
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    • pp.614-625
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    • 2018
  • This study was conducted to investigate the level of resilience and the factors affecting resilience in nursing students, and to provide basic data to develop a program that improves resilience of nursing students. Data were collected from 155 nursing students in D city from April 15 to May 30, 2018 using the Resilience Scale, College Life Stress Scale, Self-Efficacy Scale (SES), Multi-Dimensional Scale of Perceived Social Support (MSPSS), Positive Affect Scale, and Stress Coping Strategy Scale. Data were analyzed using t-tests, ANOVA, Pearson's correlation coefficient, and multiple regression. The mean score for resilience in nursing students was 3.54 points. There was a significant difference in resilience according to academic score and satisfaction with major. Resilience was significantly correlated with self-efficacy, social support, and active stress coping strategy. Factors that impacted resilience in multiple regression were self-efficacy (${\beta}=0.39$, p<0.001), active stress coping strategy (${\beta}=0.26$, p<0.001), and social support (${\beta}=0.16$, p<0.001). These factors explained 51.0% of the variance in the resilience of nursing students. Therefore, it will be necessary to develop a program that can enhance resilience by strengthening protective factors such as self-efficacy, active stress coping strategies, and social support.

The Relationship of Communication Perception and Job Performance of General Hospital Nurses (종합병원 간호사의 의사소통 인식과 직무성과 영향 관계)

  • Jung, Sang-Jin
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.5
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    • pp.485-494
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    • 2020
  • This study analyzed the relationship between communication perception and job performance in general hospital nurses in order to provide basic data for efficient personnel and hospital management. For this purposes, data were collected from August 5 to 23, 2019, targeting 392 nurses from 14 general hospitals in Gwangju and Jeonnam and t-test, variance analysis, post hoc analysis, Correlations analysis and multi-regression analysis were conducted. In analyzing the differences between demographical and health characteristics and job performance, there were statistically significant differences in age, working years, salary, satisfaction, locations, health status, health education, chronic diseases and depression. In respect to communication perception and job performance of nurses, age of 30 and job satisfaction (moderate satisfaction and dissatisfaction) had a negative effect, locations had a positive effect, and horizontal communication had the greatest effect on job performance. There was a relation between downward, informal and upward communication and job performance, and the determination coefficient was 45.2%. Based on these results, this study suggested that for higher job performance, we should improve working environment, enhance job satisfaction, organize nursing organization culture with active horizontal, downward, informal and upward communication and develop an efficient personnel management system.

Influencing Factors for Post-traumatic Growth in Patients with Breast Cancer (유방암 환자의 외상 후 성장 영향 요인)

  • Choi, Sung-Hee;Lee, Young-Whee
    • The Journal of the Korea Contents Association
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    • v.16 no.11
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    • pp.499-509
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    • 2016
  • This study was undertaken to investigate the factors that influence post-traumatic growth in patients with breast cancer. The study subjects were 100 outpatients with breast cancer who visited the outpatient clinic of a university hospital. The instruments used for this study were Korean Post-traumatic Inventory (K-PTGI), Modified Medical Outcomes Study Social Support Survey (mMOS-SS), Self-Efficacy Scale for Self-Management of Breast Cancer (SESSM-B) and Cancer Coping Questionnaire (CCQ). The data were analyzed by t-test, ANOVA, Pearson-correlation coefficient, and stepwise multiple regression using SPSS/WIN 21.0. The mean score of post-traumatic growth was $3.4{\pm}0.9$ out of 5. Post traumatic growth had statistically significant correlation with social support, breast cancer self-management self-efficacy, and coping behavior. In stepwise multiple regression analysis, post-traumatic growth was significantly influenced by therapeutic compliance related self-efficacy and positive reframing coping behavior and it was account for 29% of the total variance. These results suggest that these influencing factors should be considered in developing the nursing intervention to improve the post-traumatic growth in patient with breast cancer.

Factors Influencing Middle-Aged Men's Attitude towards Death (중년 남성의 죽음에 대한 태도에 영향을 미치는 요인)

  • Jung, Young-Mi
    • Journal of Hospice and Palliative Care
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    • v.16 no.3
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    • pp.166-174
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    • 2013
  • Purpose: This study aims to identify factors that influence middle-aged men's attitude towards death. Methods: The study enrolled 204 middle-aged (range=40~59 years) male residents of Daegu in Korea. Using a structured questionnaire, data were collected in October 4~30, 2010. For data analysis, we used descriptive statistics, t-test, one-way ANOVA, Scheff$\grave{e}$'s test, Pearson correlation coefficient, and stepwise multiple regression with SPSS WIN 14.0. Results: Participants' attitude towards death significantly differed according to educational level, religion, volunteer activities, and perceived health status. Moreover, their attitude towards death was negatively correlated with life stress and depression and positively correlated with self-esteem, life satisfaction, and coping behavior. The factors influencing the attitude towards death were life satisfaction, daily stress, religion, and depression, which explained approximately 25.7% of the total variance. Conclusion: Middle-aged men perform a crucial role in our society, and their attitude toward death affects how they cope with a situational crisis such as a terminal cancer or withdrawal of life sustaining treatment. Therefore, it is necessary to develop and implement a support program for middle-aged men, which offers them with various strategies to better manage their daily stress and improve their life satisfaction and coping skills.

Factors Influencing Satisfaction on Clinical Practice in Nursing Students (간호대학생의 임상실습 만족도에 영향을 미치는 요인)

  • Jeon, Min-Kyung;Kim, Mi-Sook
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.1
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    • pp.40-48
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    • 2017
  • This study investigated the relationship among emotional regulation, coping strategies and satisfaction in clinical practice, and examined factors influencing satisfaction with clinical practice in nursing students. Data were collected through structured questionnaires from May 1 to June 30, 2016. The study participants were 201 third and fourth year nursing students at four departments of nursing located in B and K metropolitan city. Data were analyzed using t-test, ANOVA, Scheffe's test, Pearson's correlation coefficients and stepwise multiple regression with SPSS WIN v 20.0. The mean emotional regulation score was $3.73{\pm}0.48$, active coping was $2.79{\pm}0.33$, passive coping was $2.53{\pm}0.36$, and practice satisfaction was $3.58{\pm}0.46$. Statistically significant relationships were noted between emotional regulation and satisfaction with clinical practice (r=.391, p<.001), between active coping and satisfaction with clinical practice (r=.361, p<.001), between passive coping and satisfaction with clinical practice (r=.276, p<.001). Factors influencing satisfaction with clinical practice were satisfaction with the nursing major (${\beta}=-.322$, p<.001) and emotional regulation (${\beta}=.232$, p<.001). These factors explained 28.1% of variance in participant's satisfaction with clinical practice. In conclusion, effective nursing educational programs need to be developed to enhance satisfaction with clinical practice and to foster positive emotional regulation in nursing students.

Development of a groundwater contamination potential evaluation technique by improving DRASTIC Index for a tunnel excavation area (개선된 DRASTIC 기법을 이용한 터널굴착 예정지역의 지하수 오염 가능성 평가기법 개발에 관한 연구)

  • Park, Jun-Kyung;Park, Young-Jin;Wye, Yong-Gon;Choi, Young-Tae;Lee, Han-Min
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.5 no.1
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    • pp.71-88
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    • 2003
  • The DRASTIC system is widely used for assessing regional groundwater pollution susceptibility by using hydrogeological factors such as depth to water, net recharge, aquifer media, soil media, topography, vadose zone media, hydraulic conductivity. This study is providing Modified Drastic Model to which lineament density, land use, influence of groundwater drawdown caused by tunnel excavation are added as additional factors using geographic information system, and then to evaluate groundwater contamination potential of ${\bigcirc}{\bigcirc}$ area. For statistical analysis, vector coverage per each factor is converted to grid layer and after each correlation coefficient between factors, covariance, variance, eigenvalue and eigenvector by principal component analysis of 3 direction, are calculated, correlation between factors is analyzed. Also after correlation coefficients between general DRASTIC layer and rated lineament density layer, between general DRASTIC layer and rated land use layer, between general DRASTIC layer and rated tunnel excavation influence layer are calculated, final modified DRASTIC model is constructed by using them with each weighting. When modified DRASTIC model was compared with general DRASTIC model, contamination potential in modified DRASTIC model is fairly detailed and consequently, vulnerable area which has high contamination potential could be presented concretly.

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Wind Stability of Commercially Important Tree Species and Silvicultural Implications, Daegwallyeong Korea (대관령 지역 경제림에 대한 내풍 안정성 분석 및 임업적 적용)

  • Moktan, Mani Ram;Kwon, Jino;Lim, Joo-Hoon;Shin, Moon-Hyun;Park, Chan-Woo;Bae, Sang-Won
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.17 no.1
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    • pp.58-68
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    • 2015
  • This study compares the wind stability of Larix kaempferi (Lamb.) Carr., Pinus koraiensis Sie. & Zucc. and Abies holophylla Maxim. to understand and inform wind risk management of these plantation trees at Daegwallyeong, Korea. Temporary square plots of $20m{\times}20m$ ($400m^2$) were laid out, and DBH (Diameter at Breast Height) and height for trees greater than 10 cm in DBH were measured by species. A total of 15 plots with 5 plots each in L. kaempferi, P. koraiensis and A. holophylla stands were sampled at random. Among the species, A. holophylla and P. koraiensis have comparatively lower h/d (Height/DBH) ratios than L. kaempferi. These results indicate that the former two species are more wind firm than the latter species. About 9% of the L. kaempferi trees have higher h/d ratios than the critical threshold limit 80. These trees are vulnerable to wind damage and should be removed in the next thinning regime. The analysis of variance detected a significant difference (p < 0.05) in the h/d ratios and Gini coefficient indicating species differences and DBH size variation, respectively. Gini coefficient was 16.4% in A. holophylla, 15.9% in P. koraiensis and 14% in L. kaempferi stands indicating limited DBH size variation. Lower h/d ratios are attributed to thinning in these stands and tree morphological differences. To increase wind firmness, low thinning should concentrate to remove trees with the h/d ratio above 80 coinciding at the time of stand distinction phase. Forest managers and practitioners should measure and maintain h/d ratios of trees below the critical threshold limit of 80 through stand density management. Variable density thinning approach should be tested to increase tree DBH sizes of the even-aged stands.

Time Dependent Evaluation of Corrosion Free Life of Concrete Tunnel Structures Based on the Reliability Theory (해저 콘크리트 구조물의 신뢰성 이론에 의한 시간 의존적 내구수명 평가)

  • Pack, Seung Woo;Jung, Min Sun
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.15 no.3
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    • pp.142-154
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    • 2011
  • This study predicted the probability of corrosion initiation of reinforced concrete tunnel boxes structures using the Monte Carlo Simulation. For the inner wall and outer wall in the tunnel boxes, exposed to airborne chloride ion and seawater directly respectively, statistical values of parameters like diffusion coefficient D, surface chloride content $C_s$, cover depth c, and the chloride threshold level $C_{lim}$ were examined from experiment or literature review. Their average values accounted for $3.77{\times}10^{-12}m^2/s$, 3.0% by weight of cement, 94.7mm and 45.5mm for outer wall and inner wall, respectively, and 0.69% by weight of cement for D, $C_s$, c, and $C_{lim}$, respectively. With these parametric values, the distribution of chloride contents at rebar with time and the probability of corrosion initiation of the tunnel boxes, inner wall and outer wall, was examined by considering time dependency of chloride transport. From the examination, the histogram of chloride contents at rebar is closer to a gamma distribution, and the mean value increases with time, while the coefficient of variance decreases with time. It was found that the probability of corrosion initiation and the time to corrosion were dependent on the time dependency of chloride transport. Time independent model predicted time to corrosion initiation of inner wall and outer wall as 8 and 12 years, respectively, while 178 and 283 years of time to corrosion was calculated by time dependent model for inner wall and outer wall, respectively. For time independent model, the probability of corrosion at 100 years of exposure for inner wall and outer wall was ranged 59.5 and 95.5%, respectively, while time dependent model indicated 2.9 and 0.2% of the probability corrosion, respectively. Finally, impact of $C_{lim}$, including values specified in current codes, on the probability of corrosion initiation and corrosion free life is discussed.