• Title/Summary/Keyword: Variance of Analysis

Search Result 6,248, Processing Time 0.037 seconds

Development of a Reward Scale for Hospital Nurses (병원간호사의 보상 측정도구 개발)

  • Kim, Sun Hee;Kim, Eun-Young
    • Journal of Korean Academy of Nursing
    • /
    • v.53 no.5
    • /
    • pp.525-537
    • /
    • 2023
  • Purpose: This study aimed to develop and test a reward scale for hospital nurses. Methods: The initial items were identified through a literature review and focus group interviews with ten hospital nurses. The content validity of the items was evaluated by ten experts. Fifty-one items were derived from the pilot survey. Four hundred eighty-eight nurses participated in the study: 248 for exploratory factor analysis (EFA) and 240 confirmatory factor analysis (CFA). Data were analyzed using item analysis, EFA, CFA, convergent validity, known-group validity, and internal consistency using IBM SPSS Statistics 29.0 and IBM SPSS AMOS 29.0. Results: The final scale consisted of 31 items and eight factors (decent wage, opportunity to grow and develop, support for special situations, various benefits, flexibility of work, job-related achievement, reflecting career and performance, and recognition), which explained 67.3% of the total variance. The eight-subscale model was validated by CFA. Convergent validity was evaluated by analyzing correlation with intention to leave (r = - .63, p < .001) and job satisfaction (r = .54, p < .001). The known-group validity was evaluated by comparing the reward scales according to age, clinical career, income level and hospital type. The scale was found to be reliable with a Cronbach's α of .89. Conclusion: Both the validity and reliability of the reward scale for hospital nurses are verified, which can enhance the understanding of the range of rewards and may assist nurse managers in establishing an effective reward system.

The effect of social responsibility and self-leadership of the department of dental technician students on career preparation behavior (치기공학과 학생의 사회적 책임성과 셀프리더십이 진로준비행동에 미치는 영향)

  • Soon-Suk Kwon
    • Journal of Technologic Dentistry
    • /
    • v.46 no.3
    • /
    • pp.114-125
    • /
    • 2024
  • Purpose: This study aimed to identify the social responsibility, self-leadership, and career-preparation behavior of fourth-year students graduating from the 4-year program of the department of dental technology and provide basic data for developing specific methods and related programs to help graduates adopt positive and active career preparation behavior. Methods: The final analysis was performed using 143 questionnaires from fourth-year students of the 4-year department of dental technology at Gyeonggi-do, Gangwon-do, and Busan Metropolitan City. T-tests, analysis of variance, correlation analysis, and linear regression analysis were performed in IBM SPSS Statistics ver. 21.0 (IBM). Results: A significant positive correlation was found (p<0.01) between social responsibility, self-leadership, and career preparation behavior factors, and the detailed factors of self-leadership that influence career preparation behavior, "attitude" (p<0.05), "natural reward strategies" (p<0.001), "behavior-focused strategies" (p<0.01), and "constructive thought pattern strategies" (p<0.01) demonstrated significant relationships. The explanatory power values of the models were 50.7% and 52.9%, respectively. Conclusion: This study concluded that to improve career preparation behaviour, social participation through various major volunteer activities is needed to ensure students feel professional responsibility and guide and encourage participation in various self-development programs during their time in university. In addition, universities and departments need to develop step-by-step and various career-preparation behavior programs for each year level.

The Effect of Adolescents' Perception of Parental Overprotection, Goal-Seeking Orientation and Self-Handicapping on their Academic Procrastination (청소년이 지각한 부모의 과보호, 목표추구지향성 및 자기구실 만들기가 학업지연행동에 미치는 영향)

  • Lee, Ji Seon;Kim, Jung Min
    • Journal of Families and Better Life
    • /
    • v.34 no.6
    • /
    • pp.1-14
    • /
    • 2016
  • The purpose of this study is to examine the relation among adolescents' perception of parental overprotection, goal-seeking orientation, self-handicapping and academic procrastination. Questionnaires were administered to 1200 male and female high school students in Gyeonggi Province. A total of 942 questionnaires were statistically analyzed through mean, standard deviation, frequency analysis, one-way analysis of variance, Pearson's correlation analysis, and multiple regression analysis. The major results of the study are as follows: First, adolescents' academic procrastination differed by school grades. Second, for the high-performing group, self-handicapping, goal-seeking orientation and parental overprotection were significant predictors of their academic procrastination. For the mid-level performing group, self-handicapping and goal-seeking orientation were significant predictors of their academic procrastination. For the low-performing group, self-handicapping was the only predictor of their academic procrastination. Third, for the high-performing group, self-handicapping meditated the relation between parental overprotection and academic procrastination. Those results provide useful information regarding proactive support or intervention for adolescents' academic procrastination.

A Study on Indicator Bacteria for Water Quality Management of Urban Artificial Lakes (도심지역 인공호의 수질관리를 위한 지표세균에 관한 연구)

  • Chu, Duk-Sung;Kwon, Hyuk-Ku;Lee, Sang-Eun;Lee, Jang-Hoon
    • Journal of Environmental Health Sciences
    • /
    • v.33 no.4
    • /
    • pp.299-305
    • /
    • 2007
  • Distribution of fecal pollution indicator bacteria and environmental parameter were investigated of urban artificial lakes. An average concentration of temperature, pH, SS, DO, $COD_{Mn}$, T-P, T-N, Turbidity, Chl-a were $21.5^{\circ}C$, 8.07, 116.70 mg/l, 8.66 mg/l, 2.24 mg/1, 0.52 mg/l, 1.71mg/l, 80.54 NTU, and 52.12 mg/l respectively. From the results of bivariate correlation analysis, fecal contamination indicator bacteria were found to be mutually correlated. And turbidity and suspended solid were correlated. From the results of principal component analysis, four factors were extracted. And four factors of variance explained up to 81.5 percentage. Factor 1 was pollution pattern by fecal contamination, factor 2 was physical pollution pattern by pollution source, factor 3 was natural pollution by precipitation, and factor 4 was artificial pollution pattern by organism.

Factors related to empowerment of paramedic students who experienced clinical practice (임상실습을 경험한 응급구조(학)과 학생의 임파워먼트 관련 요인)

  • Song, Seo-Yeong;Han, Mi-Ah
    • The Korean Journal of Emergency Medical Services
    • /
    • v.20 no.1
    • /
    • pp.17-30
    • /
    • 2016
  • Purpose: This study investigated factors related to empowerment of paramedic students. Methods: A total of 208 students in the department of emergency medical services who experienced clinical practice at 5 universities were selected by convenience sampling methods. Differences in empowerment by general and major-related characteristics were evaluated using a t-test and analysis of variance. The association between satisfaction with clinical practice and empowerment was tested using correlation coefficients. Multiple linear regression analysis was performed to investigate the factors associated with empowerment. Results: The levels of overall satisfaction with clinical practice and empowerment were 107.48 and 99.46, respectively. In simple analysis, empowerment level was associated with general characteristics, major-related characteristics, characteristics of clinical practice, and satisfaction with clinical practice. Empowerment level was significantly higher in older subjects (${\beta}=5.282$, p = .023), subjects with very good (${\beta}=8.487$, p = .002) or fair (${\beta}=4.879$, p = .010) subjective health status, and high subjective school record (${\beta}=5.837$, p = .008) in multiple linear regression analysis. Satisfaction with clinical practice was positively associated with empowerment (${\beta}=0.250$, p < .001). Conclusion: Empowerment was associated with major-related factors and satisfaction with clinical practice. Increased satisfaction with clinical practice could positively influence empowerment for paramedic students.

A Development and Application of Decision Support System for Cost Analysis (원가분석 시스템의 개발 및 활용)

  • Chae, Young-Moon;Lee, Hae-Jong;Park, Chang-Rae;Jeong, Jee-Sun
    • Journal of Preventive Medicine and Public Health
    • /
    • v.23 no.1 s.29
    • /
    • pp.65-76
    • /
    • 1990
  • Hospitals are experiencing an increasing amount of financial difficulty due to government control of hospital rates since national health insurance has been implemented. The decision support system (DSS) was developed to provide cost and revenue information for the services rendered by each department in an effort to reduce costs. This information may be used to identify the causes of financial loss if cost exceeds revenue and to conduct variance analysis or portfolio analysis to improve financial situation of hospitals. The DSS was developed using a micro-mainframe interface approach where the mainframe computer collects and summarizes daily cost and revenue data and the micro computer computes the cost for each department. The significances of this paper are to determine the cost allocation basis and methods which are suitable to Korean situation and to apply DSS technology to the cost analysis.

  • PDF

Reliability analysis of surface settlement by groundwater drawdown from tunnel excavation (터널굴착시 지하수위저하에 의한 지표침하의 신뢰성 해석)

  • Jang, Yeon-Soo;Kim, Hong-Seong;Park, Jeong-Yong;Park, Joon-Mo;Lee, Seong-Ki
    • Proceedings of the Korean Geotechical Society Conference
    • /
    • 2005.03a
    • /
    • pp.1426-1433
    • /
    • 2005
  • In this paper, reliability analysis of surface settlement by ground water drawdown is performed using a reliability-groundwater flow numerical model. The result is compared with that of the deterministic model to evaluate the influence of the uncertainty from hydraulic conductivity in the soft ground as well as to determine the range of hydraulic conductivity of grouted ground. From the analyses, it was found that probability of failure to exceed the tolerable settlement was very high, if the hydraulic conductivity of grouted ground is decided from the deterministic flow model only. Reliability analysis which evaluates variance of hydraulic conductivity should be used together with the deterministic model for grouting design of tunnels to prevent ground water drawdown.

  • PDF

A Study on the Productions Systems of Apparel Manufacture

  • Lee, Sun-Hee;Suh, Mi-A
    • The International Journal of Costume Culture
    • /
    • v.2 no.2
    • /
    • pp.71-79
    • /
    • 1999
  • The purposes of this study were to 1) identify types and usage levels of production 2) classify apparel manufacturers based on production systems and 3) investigate relationship between characteristics of apparel manufacturers and production system. Apparel manufacturer's characteristics included product line and the number of employees. For this study, the questionnaires were administered to 215 apparel manufacturers in metropolitan area from Feb. to Mar. 1998. Employing a sample of 201, data were analyzed by using factor analysis, descriptive statistics, cluster analysis, discriminant analysis, and multivariate analysis of variance(MANOVA). The following are the results or this study : 1. The production system was identified as three types of production system such as the management centered system, the product centered system and the worker centered system. 2. Based on the three types of the production system, apparel manufacturer were classified into manager centered and product centered groups. 3. With respect to product line, men's wear manufactures were operated the most frequently by manager centered and product centered groups. 3. With respect to product line, men's wear manufacturers were operated the most frequently by management centered system and women's wear manufacturers were operated the most frequently by worker centered system. With respect to the number of employees, apparel manufacturers comprising 5∼19 employees were performed the least frequently worker centered system, while those comprising 50∼99 and 100∼299 employees the least frequently worker centered system.

  • PDF

A Design Variable Study of Plane Stress Element by Reliability Analysis (신뢰성 해석에 의한 평면응력요소의 설계변수 분석)

  • 박석재;최외호;김요숙;신영수
    • Proceedings of the Computational Structural Engineering Institute Conference
    • /
    • 2001.04a
    • /
    • pp.102-109
    • /
    • 2001
  • In order to take account of the statistical properties of probability variables used in the structural analysis, the conventional approach using the safety factor based on past experience usually estimated the safety of a structure. The real structures could only be analyzed with the error in estimation of loads, material characters and the dimensions of the members. But the errors should be considered systematically in the structural analysis. Structural safety could not precisely be appraised by the traditional structural design concept. Recently, new approach based on the probability concept has been applied to the assessment of structural safety using the reliability concept. Thus, the computer program by the Probabilistic FEM is developed by incorporating the probabilistic concept into the conventional FEM method. This paper estimated for the reliability of a plane stress structure by Advanced First-Order Second Moment method using von Mises, Tresca and Mohr-Coulomb failure criterions. The reliability index and failure probability of attained by the Monte Carlo Simulation method with the von Mises criterion were same as PFEM, but the Monte Carlo Simulation were very time-consuming. The variance of member thickness and load could influence the reliability and failure probability most sensitively among the design variables from the results of the parameter analysis. And proper failure criterion must be used to design safely.

  • PDF

A CO2 Emission Reduction Method through Correlation Analysis of Design Parameters in Buildings (건축물 설계변수의 상관관계 분석을 통한 CO2 배출저감 방안)

  • Lee, Hyun-Woo;Chae, Min-Su
    • Journal of the Korean Solar Energy Society
    • /
    • v.31 no.1
    • /
    • pp.100-106
    • /
    • 2011
  • This study proposes a $CO_2$ emission reduction method through correlation analysis of a sample building. First, energy saving factors of heating, cooling, lighting were determined for the correlation analysis and $CO_2$ emission contribution rate of the design parameters have been analyzed. Then optimal combination of each design parameter has been drawn. Heat transfer coefficient of walls and windows, air permeability, windows area ratio, and shading devices were selected as applicable energy saving factors of the sample building. Also computer simulation was conducted using experimental design by Orthogonal Arrays of the statistical method. And the contribution rate was estimated by Analysis of Variance-ANOVA. As a result, the $CO_2$ emission in heating was reduced to 51.9%; in cooling to 16.8%; and in lighting to 2% compared to the existing building. The majority of the reduction was presented by heating energy.