• 제목/요약/키워드: General Reliability Theory

검색결과 69건 처리시간 0.029초

류마티스 관절염 환자가 지각하는 불확실성에 관한 모형 구축 (Model Construction of Perceived Uncertainty in Rheumatoid Arthritis Patients)

  • 유경희;이은옥
    • 근관절건강학회지
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    • 제5권1호
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    • pp.7-25
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    • 1998
  • Rheumatoid arthritis, unlike other chronic diseases, causes the patients to experience uncertainty in their daily lives and thus to feel threat on their emotional comfort because of inconsistent and unpredictable symptoms such as pain. Therefore, a theoretical framework is needed for explanation of uncertainty in patients having rheumatoid arthritis. A hypothetical model was constructed on the basis of Mishel's Uncertainty Theory and other literature review. The model included 9 theoretical concepts and 19 paths. Subjects of the study constituted 330 partients who visited outpatient clinics of two university hospitals and one general hospital in Seoul. Self report questionnaires were used to measure the variables affecting uncertainty. Reliability coefficients of these instruments were found Cronbach's Alpha=$.70{\sim}.94$. In data analysis, SAS program and PC-LISREL 8.03 computer program were utilized for descriptive statistics and covariance structure analysis. The results of covariance structure analysis for model fitness were as follows : 1) Hypothetical model showed a good fit to the empirical data : Chi-square($X^2$)=41.81 (df=11, P=.000), Goodness of Fit Index=.974, Root Mean Square Residual=.049, Normed Fit Index=.928, Non Normed Fit Index=.814. 2) For the validity and the parcimony of model, a modified model was constructed by appending 2 paths and deleting 5 paths according to the criteria of statistical significance and meaningfulness. 3) The results of hypothesis testing were as follows : (1) Educational level, event familiarity and severity of illness had a direct effect on uncertainty : Event congruency had both direct and indirect effect on uncertainty : Credible authority and symptom consistency had a nonsignificant direct effect on uncertainty, (2) Illness duration, symptom consistency, and event congruency had a direct effect on severity of illness ; Credible authority had a both direct and indirect effect on severity of illness ; Event congruency had the greatest effect on severity of illness, and event familiarity had a nonsignificant direct effect on severity of illness.

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원자력발전소(原子力發電所) 가동중(稼動中) 검사(檢査)의 시험분석(試驗分析)을 위한 자동화연구(自動化硏究) (I) (A Study of Automation for Examination Analysis of Inservice Inspection for Nuclear Power Plant (I))

  • 김욱
    • 비파괴검사학회지
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    • 제5권1호
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    • pp.34-47
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    • 1985
  • The developing country, KOREA where does not possess the natural resources for traditional energy such as oil and gas, so. The nuclear energy is the most single reliable source available for closing the energy gap. For these reason, It is inavoidable to construct the nuclear power plant and to develop technology related nuclear energy. The rate of operation in large nuclear power facilities depends upon the performance of work system through design and construction, and also the applied technology. Especially, it is the most important element that safety and reliability in operation of nuclear power plant. In view of this aspects, Nuclear power plant is performed severe examinations during preservice and inservice inspection. This study provide an automation of analysis for volumetric examination which is required to nuclear power plant components. It is composed as follows: I. Introduction II. Inservice Inspection of Nuclear Power Plant ${\ast}$ General Requirement. ${\ast}$ Principle and Methods of Ultrasonic Test. ${\ast}$ Study of Flaw Evaluation and Design of Classifying Formula for Flaws. III. Design of Automation for Flaw Evaluation. IV. An Example V. Conclusion In this theory, It is classifying the flaws, the formula of classifying flaws and the design of automation that is the main important point. As motioned the above, Owing to such as automatic design, more time could be allocated to practical test than that of evaluation of defects, Protecting against subjective bias tester by himself and miscalculation by dint of various process of computation. For the more, adopting this method would be used to more retaining for many test data and comparative evaluating during successive inspection intervals. Inspite of limitation for testing method and required application to test components, it provide useful application to flow evaluation for volumetric examination. Owing to the characteristics of nuclear power plant that is highly skill intensive industry and has huze system, the more notice should be concentrated as follows. Establishing rational operation plan, developing various technology, and making the newly designed system for undeveloped sector.

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경인지역 대학병원 행정직원이 인지하는 임파워먼트 정도가 직무만족과 조직몰입에 미치는 영향 (The Impact of Workplace Empowerment on University Hospital Administrative Staff's Job Satisfaction and Organizational Commitment)

  • 박재산
    • 한국병원경영학회지
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    • 제7권1호
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    • pp.1-18
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    • 2002
  • Empowerment is a multifaceted concept which can be described somewhat differently. In general, it is defined as the motivational concept of autonomy and self-efficacy. Recently, this concept of empowerment is applied to improve organizational staff's job satisfaction and organizational commitment in many organizations. Empowerment in service organizations has certainly generated more publicity than any other organizations. The objective of this study is to measure the degree of hospital administrative staff's empowerment using Spreitzer(1995)'s empowerment theory, and also to analyze the relationship of empowerment and job satisfaction and organizational commitment. Spreitzer argues that the work empowerment is composed of 4 dimensions (meaning, competence, self-determination, and impact) and each dimension influences employee's job satisfaction, organizational commitment, and organizational performance in the end. In order to carry out this study, data were collected by self-administered Questionnaires from 181 hospital administrative staff at 3 university hospitals in Inchon and Kyunggi-Do. The response rate is 86%. The Collected data were analyzed with SPSS statistical package V10.0. The major findings of this study are as follows: First, the degree of hospital administrative staff's empowerment is a high level point at the 7 Likert Scale. Second, the reliability of 3 variables, empowerment, job satisfaction and organizational commitment, was statistically satisfied(Cronbach's alpha>0.80). Third, as a result of correlation analysis, four components of empowerment, job satisfaction and organizational commitment showed a positive relationship. Finally, multiple regression analysis was conducted to find the impact of empowerment on job satisfaction and organizational commitment. In the case of job satisfaction, the meaning and competence factors have a positive effect(P<0.05). And the case of organizational commitment, the meaning and impact components have a positive relation(p<0.05). These results showed that the workplace empowerment is significantly related to employee's job satisfaction and organizational commitment.

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e-Learning 환경에서의 협력학습을 위한 학습모형 및 학습행위요소 개발 (A Study on the Development of Collaborative Learning Model and Behavioral Elements in e-Learning Environment)

  • 이인숙;임정훈;성은모;진성희
    • 컴퓨터교육학회논문지
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    • 제9권2호
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    • pp.27-36
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    • 2006
  • 본 연구는 e-Learning 협력학습 기술 개발 지원을 위한 기반 연구로서, e-Learning 에서의 협력학습을 위한 기본모형 개발과 협력학습 활동에서 발생하는 학습자들의 학습행위요소를 세부적으로 분석 제시하는 것을 연구의 목적으로 하였다. 연구의 목적을 달성하기 위하여 면대면 교실수업에서 이루어져 온 다양한 협동학습 모형들을 분석하였으며, 면대면과 온라인 환경에서 협력학습 및 커뮤니케이션 활동을 강조하는 문제중심학습, 프로젝트 학습, 탐구학습, 토론학습 등 교수모형에 기초한 주요 학습모형들의 절차와 단계, 학습활동 등도 분석하였다. 연구 결과 e-Learning에서의 협력학습을 위한 일반 모형과 세부 학습행위요소들, 그리고 시스템적 지원기능들이 제시되었으며, 추후 연구를 위한 과제가 제안되었다.

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Information Dissemination During the COVID-19 Pandemic in Bangladesh

  • Sayed, Abu;Haque, Md. Ziaul;Mahmud, Md. Rifat
    • Journal of Information Science Theory and Practice
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    • 제10권4호
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    • pp.66-86
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    • 2022
  • The main aim of this study is to identify the role of information dissemination on urban and rural citizens of Bangladesh during the COVID-19 pandemic and the role of misinformation in this process. The study also aimed at finding appropriate counter misinformation strategies regarding COVID-19. An online questionnaire was prepared to collect the viewpoints of the urban and rural citizens of Bangladesh regarding dissemination of information during COVID-19, misinformation regarding COVID-19, and counter misinformation strategies. Along with demographic and general information, a five-point Likert scale was used to measure COVID-19 related misinformation beliefs and how to counter them. Chi square tests were used to determine the association between current residency, information sources, the importance of information dissemination, reactions after getting COVID related information, and evaluative steps after getting information and before disseminating it. Additionally, nonparametric Mann-Whitney U and Kruskal-Wallis tests were conducted to know the significance of difference in respondents' assessment on COVID-19 related misinformation in terms of their demographic characteristics. Cronbach's alpha score was obtained to see the reliability of the questionnaire items. The current study reveals that both urban and rural citizens of Bangladesh are influenced by information dissemination regarding COVID-19 and they have lower level of misinformation belief. The respondents have differences in misinformation belief by different demographic groups. Respondents' educational status, information literacy, sources of getting information, and evaluative steps after getting information have significant differences in misinformation belief. The study also noticed the support of respondents for countering misinformation strategies regarding COVID-19.

수질사고 예방형 상수도 관망 밸브 시스템 설계 (A new approach to design isolation valve system to prevent unexpected water quality failures)

  • 박경진;신금채;이승엽
    • 한국수자원학회논문집
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    • 제55권spc1호
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    • pp.1211-1222
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    • 2022
  • 상수도 관망 운영 단계에서 비정상상황은 필연적으로 발생하며, 이때 밸브를 이용한 구역의 격리가 필요하다. 밸브를 이용한 구역 격리 시 흐름 경로와 유향, 유속의 변화와 같은 수리적 변화로 인해 수리적 피해는 불가피하며, 대부분의 기존 연구들은 수리적 피해를 최소화할 수 있도록 밸브의 위치를 결정하여 왔다. 다만, 수리적 변화는 예지치 못한 수질 사고를 유발할 수 있기에, 격리 시 수질 사고 발생 여부를 미리 판단할 필요가 있다. 이에 본 연구에서는 밸브 위치에 따른 예지치 못한 수질 문제를 예방할 수 있는 밸브 설계 방안을 제안한다. 이를 위한 격리 전후의 관로별 흐름 특성 변화율을 정량화하는 유향 변경률 인자(Flow Direction Change Ratio, FDCR)와 신뢰도(reliability)를 고려한 최적 설계 방법론을 제안하였으며, 해당 모형을 가상 상수도 관망에 적용하여 FDCR 고려 유무에 따른 설계안을 비교하였다. 설계 결과 FDCR을 고려한 경우 기존 설계안 대비 유향 변동이 없는 것을 확인하였으며, 세그먼트 격리에 따른 절점별 압력과 관별 유속의 평균과 변동성을 확인한 결과 기존 설계안 대비 우수한 성능을 나타냄을 확인하였다. 또한 설계안 비교를 위해 그래프 이론 기반 인자인 수리학적 거리 인자(Hydrualic Geodesic Index, HGI)를 활용하였으며, HGI가 높은 설계안이 유향 변동성이 낮은 것으로 나타났다. 본 연구는 향후 수질 사고를 고려한 밸브 시스템의 설계 및 운영에 활용할 수 있을 것으로 기대한다.

수단-목적사슬이론을 적용한 프랜차이즈 분식점의 서비스 품질, 지각된 혜택, 가치 그리고 행동의도 간의 관계 분석 (A Study on the Relationships among Service Quality, Perceived Benefit, Value, and Behavioral Intention as Perceived by Franchise Snack Bar Restaurant Consumers - Application of Means-End Chain Theory -)

  • 박혜빈;이순아;유서영
    • 한국조리학회지
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    • 제22권3호
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    • pp.183-197
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    • 2016
  • 본 연구는 프랜차이즈 분식점 이용객들을 대상으로 프랜차이즈 분식점 방문 시 인지될 수 있는 세 가지 서비스 품질 요인들을 측정하고, 이러한 요인들이 고객들이 지각한 혜택과 가치, 그리고 행동의도에 어떠한 영향을 미치는지 파악하고자 수행되었다. 연구가설 검증을 위하여 총 450부의 설문지를 최근 3개월 이내에 프랜차이즈 분식점 이용 방문객들을 대상으로 배포하여, 이 중 불성실한 응답 39부를 제외한 총 411부의 설문지가 실증분석에 사용되었다. SPSS 20.0과 AMOS 20.0을 사용하여 기술통계, 요인분석 및 신뢰도검증 및 요인들 간의 인과관계를 검증하였다. 연구결과, 서비스 품질의 세 가지 요인 모두가 지각된 혜택에 유의한 영향을 미치는 것으로 분석되었으며, 세 요인 중 결과품질이 지각된 혜택에 가장 높은 영향을 미치는 것으로 나타났다. 지각된 혜택은 가치에 중요한 선행변수임이 검증되었고, 긍정적으로 형성된 가치는 미래행동의도에 직접적 영향을 미치는 것을 입증하였다. 이러한 연구결과는 기존에 여러 선행연구에서 검증되었던 수단-목적 사슬이론을 프랜차이즈 분식점을 대상으로 한 연구분야에 적용시켰다는 것에 의의를 가진다. 본 연구의 결과는 최근 외식산업분야에서 중요한 축으로 자리 잡고 있는 분식점 산업의 활성화와 경쟁우위 전략을 구축을 하는데 현실적이고 논리적인 제언을 해줄 수 있을 것으로 사료된다.

레스토랑의 e-Wom 특성이 시간 경과에 따른 방문의도를 중심으로 한 태도 및 방문의도에 미치는 영향 (Effects of Restaurants' e-Wom Characteristics on Attitude and Visit Intention: Focused on Visit Intention Over Time)

  • KIM, Sung-Hwan;JEON, Young-Mi;LEE, Ji-Ah
    • 한국프랜차이즈경영연구
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    • 제13권2호
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    • pp.17-31
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    • 2022
  • Purpose: With the development of the Internet, consumers can quickly access the electronic word-of-mouth. Consumers seek to reduce uncertainty by referring to the opinions of other consumers about products and services when making purchase decisions. In the food service industry, evaluating a restaurant before an actual visitation is difficult. Therefore, electronic word-of-mouth is important to interact with the customer in restaurants. as it can be used as an exchange of information in which consumers participate and interact with other customers. This study was conducted to verify how online word-of-mouth characteristics (Consensus, Vividness, Neutrality) on attitudes and visit intention from the perspective of social exchange theory. And it was performed to verify the structural relationship between short-term visit intention, mid-term visit and long-term visit intention. Research design, data, and methodology: A survey was conducted on customers who have visited restaurants. Of a total of 312 responses, 306 responses were used, excluding insincere responses and missing values for factors analysis. SPSS 25.0 and AMOS 25.0 were used for statistical analysis, and hypothesis testing was conducted after verifying the validity and reliability of the questionnaire items. Result: The result of the analysis showed that, consensus and neutrality have a positive effect on attitude but not much on vividness. In addition, consensus, vividness, and neutrality have no effect on the short-term visit intention. Finally, the short-term visit intention has a positive effect on mid-term visit intention, and mid-term visit intention has a positive effect on long-term visit intention. Conclusions: Based on the results, this study suggested that it is necessary to have practical implications for marketing and monitoring restaurant reviews in consideration of the characteristics of electronic word-of-mouth. When managing electronic-word-of-mouth, it is necessary to manage the consensus and neutrality is essential to provide sufficient information about the restaurant. The focus should not only be on vividness, such as photos and videos. In addition, restaurants should also provide a good experience for first-time visitors as the short-term visit intention positively affects mid-term and long-term visit intention.

브랜드 애착, 브랜드 네임, 브랜드 이미지 일치성이 태도, 구전 및 재방문의도에 미치는 영향 (The Effects of Brand Attachment, Brand Name, and Brand Image Congruence on Brand Attitude, WOM and Revisit Intentions in the Restaurant Sector)

  • KIM, Eun-Jung
    • 한국프랜차이즈경영연구
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    • 제13권2호
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    • pp.53-66
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    • 2022
  • Purpose: How to build the attitude on brand is very important, because it affects the positive word of mouth and revisit intention. Brand attachment, brand name, and image congruence play important role on consumer behavior in terms of reinforcing consumers' perception of food service companies and differentiating them from competing brands. Following the planned behavior theory, this paper examines the effect of linking brand attitude to word-of-mouth and revisit intentions in the restaurant sector. Research design, data, and methodology: This paper examines the structural relationship among brand attachment, brand name, image congruence, brand attitude, WOM, and revisit intention. In order to test the purposes of this study, research model and hypotheses were developed. The questionnaire items were modified and used according to the content of this study based on previous studies. All constructs were measured by multiple items tested and developed in the previous research. The study is based on the quantitative method and considered 519 questionnaires fulfilled by customers of restaurants. The data were explored employing the partial least square-structural equation modelling (PLS-SEM). Frequency analysis was conducted to identify the general characteristics of the survey subjects. To measure the reliability and validity of the measurement tools, confirmatory factor analysis was conducted. Structural model analysis was conducted to verify the research model. Result: The findings demonstrate that brand attachment and brand name had positive effects on attitude while image congruence did not have. Also, attitude had positive effect on WOM and revisit intention. Conclusions: This study expands the literature about WOM and revisit intentions. This study expands prior research in a similar field to which the theory of planned behavior (TPB) is applied, and reveals that brand attachment, brand name, and brand image congruence play an important role in developing brand attitude that affect revisit intention and WOM. And provide guidelines on how to enhance competitiveness in the restaurant sector based on understanding of linking brand attitude to customer loyalty and repeat business. By putting into practice these suggestions in the restaurant industry, brands can easily build up their attitude and boost a positive WOM and the intention to revisit.

서울지역 가정간호사의 업무수행능력 실태조사 (A Study on the Nursing Performance of the Home Care Nurses in Seoul)

  • 서문자;박호란;강현숙;김소선;신경림;김금순;김혜숙
    • 가정∙방문간호학회지
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    • 제6권
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    • pp.46-58
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    • 1999
  • The purpose of this research was to find out the state of the nursing performance of the home care nurses in Seoul in order to provide the data for the practical work guide. The data were collected from fifty home care nurses working in 22 institutions located in Seoul. The research tool used for this research was modified and tested by Song Jong-Rye(1999) which was originally modified the standard tool of American Nurses Association (1998) and was partly supplement and adjusted for this research. The reliability of this tool was Cronbach's $\alpha$=.0982. The collected data were statistically processed using SAS for t-test, ANOVA. $Scheff\'{e}$ test. Among the surveyees, 50% have been working as a home care nurse more than three years and 74.0% of them were married. And 52% have B.S degree with certification of home care nurse from the certification program for Home Care Nurses affiliated at nursing schools. Half of the home care nursing organizations were based on the general hospitals, and most(78%) of the responsible senior personnels of those organizations were nurses. The following results are drawn from this research. 1) The level of nursing performance by the task sectors General performance level of home care nurses was relatively high in grade of 3.06 from total 4.00. Among the task sectors. the ethical field scored the highest points, and the next were nursing intervention, professional training, and data gathering, and the research sector scored the lowest point. 2) The level of nursing performance by general features of home care nurses Statistically relevant correlation between performance according to the duration of working experience as a nurse(p=0.8951) and performance according to the duration of working as home care nurse(p=0.2263) did not emerge. Also, performance by marriage status(p=0.2218), education(p=0.5733), and taking the certification program for home card nurse(p =0.1560) has no statistically meaningful correlation. 3) The level of nursing performance by the type of home care nursing organizations There exists a significant difference(p=0.002) between performances by the types of organizations. Most of the responsible senior personnels of the home care nursing organization were nurses. The level of nursing performance of the home care nursing organization under nurse management was relatively higher than that of home care nursing organizations led by medical doctors or non-medical professional, but this was not proved as statistically meaningful(p =0.3617). 4) The level of nursing performance by task sectors according to the characteristic of home care nursing service organization There exists a significant difference between nursing performances by task sectors according to the characteristics of home care nursing organization(p=0.002). In case of model research center of one College of Nursing, the nursing performance in the sectors of organization, theory, and data gathering were lower than that of in hospital based home care nursing service. And in case of local home care centers, performances in sectors of organization, theory, data gathering, nursing intervention. professional training, and research sectors were significantly low. Based on the obtained results, overall performance of home care nurses can be appraised as relatively good. Especially, performances in sectors of the nursing intervention, nursing plan. and data gathering including the in direct nursing were recorded high scores. From this, it can be concluded that high quality of nursing is relatively practicing for home patients at these days. Since the high quality of nursing for patients was directly related to the level of nursing performances of home care nurses, it is required to improve practical performance level of them by making constant evaluation and running continual education program and supplementing curriculum for the sectors with low scores.

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