• Title/Summary/Keyword: Quality research methodology

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An Analysis of Clinical Trials for Understanding and Application of Pragmatic Clinical Trial (실용적 임상연구에 대한 이해와 적용을 위한 연구 사례 분석)

  • Yun, Young-Ju;Kang, Kyung-Won;Choi, Sun-Mi
    • Journal of Acupuncture Research
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    • v.26 no.5
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    • pp.105-116
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    • 2009
  • The use of acupuncutre has been increased worldwide, and large number of researches on acupuncture with improved quality has been conducted. Nevertheless, results of acupuncture treatment in those research tend to show mixed results, while many patients continuously seek acupuncture treatment as an adjuvant or alternatives for their health. Researchers and clinicians relevant to acupuncture are faced at this problematic discrepancy between the results of acupuncture in clinical trial including an randomized controlled trial and those of day-to-day clinical practice. The methodology of pragmatic clinical trial seems to be one of the promising research tools administering this problem especially in the area of complementary alternative medicine and traditional Korean medicine. In this study we first reviewed articles on the pragmatic clinical trial, summarized the essential concepts of 'explanatory' clinical trial 'pragmatic' clinical trial and then presented recent recommendations and arguments on this issue. We also analyzed and compared two similar pragmatic clinical trial protocols to show the readers the complexity of research designing. We hope more researchers in traditional Korean medicine will be interested in the methodology of pragmatic clinical trials and this study will serve to produce various high-quality clinical trials.

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A Study of the Subjectivity of Quality of Life in Elderly Women (여성노인의 삶의 질에 대한 주관적 구조)

  • Kim, Boon-Han;Kim, Yoon-Sook;Jeon, Hye-Won
    • Korean Journal of Adult Nursing
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    • v.19 no.5
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    • pp.92-103
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    • 2007
  • Purpose: The purpose of the study were to categorize the subjectivity of the quality of life in elderly women and to thereby understand the differences regarding quality of life desires. Methods: This study used a Q-methodology to measure the quality of life in elderly women. A Q sample was collected from in-depth and objective interviews and WHOQLO. Fourteen participants rated 28 selected Q-statements on a scale of 1 - 7. The collected data was analyzed using PC Quanl. Results: The principal component analysis identified 4 factors regarding the quality of life of elderly women. These categories were labeled 'hopelessness-oriented', 'relationship/adaptation-oriented', 'physical suffering-oriented', and 'self satisfaction-orientated'. Conclusion: Some of the factors regarding the quality of life of elderly women were determined through this research. Further research is necessary to set up and apply different the quality of life between men and women based on this result. The results of this study indicate that different approaches toward quality of life promotion programs are recommended based on the four factors of quality of life among elderly women.

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Feminism and Qualitative Nursing Research (페미니즘과 질적간호연구)

  • 이명선;이봉숙
    • Journal of Korean Academy of Nursing
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    • v.34 no.3
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    • pp.565-575
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    • 2004
  • Purpose: The purpose of this article was to describe feminism and to propose the integration of a feminist method into qualitative nursing methodology in order to expand the body of nursing knowledge. Method: The world view of feminism including philosophy, epistemology and methodology was outlined, and a feminist grounded theory and feminist ethnography were suggested as a way of strengthening nursing research methodology using literature review. Results: Four different philosophical perspectives of feminism, that is, liberal feminism, radical feminism, Marxist feminism, and social feminism were described. Also epistemological perspectives including feminist empiricism, feminist standpoint, and postmodem feminism, were explained and were related to the methodology and methods of feminism. To enhance the strengths of nursing research within the feminist perspectives, feminist grounded theory and feminist ethnography were exemplified in the paradigm of qualitative nursing research. Conclusion: This paper suggested that incorporation of feminist approaches within nursing is a valuable attempt to expand the body of nursing knowledge and to enhance the quality of nursing care services by rectifying male-oriented knowledge and by empowering women in the care of other people as well as themselves.

The Influence of Brand Equity on Customer Purchase Decision: A Case Study of Retailers Distribution

  • NGUYEN, Van Thuy;TRAN, Thi Hong Dao;NGO, Thi Xuan Binh
    • Journal of Distribution Science
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    • v.20 no.2
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    • pp.11-18
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    • 2022
  • Purpose: The purpose of this paper is to investigate the influence of brand equity on customer purchase decision (CPD) of products for retailers distribution (RB) in Ho Chi Minh city, Vietnam. There are five elements in the brand equity model such as brand awareness, brand association, brand loyalty, perceived quality, and pricing policy. Research design, data and methodology: Qualitative methodology was used for exploring the research model and variables. The survey was conducted to collect data from 251 respondents who bought products at RB in Ho Chi Minh city, which is based on a Likert scale. The collected data were analyzed with the reliability of the scale, exploratory factor analysis, and research hypothesis testing by SPSS 22. Results: The results obtained revealed that brand awareness, brand association, perceived quality, and pricing policy have a significant impact on CPD for RB. Furthermore, the results showed that perceived quality is the most significant component in influencing CPD at retailers. Conclusions: From the research results, some management implications that RB should focus on are perceived quality, choice of pricing policies and strategies, brand building and development to attract more customers as well as enhance its image to improve customers' purchasing decisions of products at retail distributors chain.

Feature Selection Methodology in Quality Data Mining

  • Soo, Nam-Ho;Halim, Yulius
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2004.05a
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    • pp.698-701
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    • 2004
  • In many literatures, data mining has been used as a utilization of data warehouse and data collection. The biggest utilizations of data mining are for marketing and researches. This is solely because of the data available for this field is usually in large amount. The usability of the data mining is expandable also to the production process. While the object of research of the data mining in marketing is the customers and products, data mining in the production field is object to the so called 4MlE, man, machine, materials, method (recipe) and environment. All of the elements are important to the production process which determines the quality of the product. Because the final aim of the data mining in production field is the quality of the production, this data mining is commonly recognized as quality data mining. As the variables researched in quality data mining can be hundreds or more, it could take a long time to reveal the information from the data warehouse. Feature selection methodology is proposed to help the research take the best performance in a relatively short time. The usage of available simple statistical tools in this method can help the speed of the mining.

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웹마이닝과 상품계층도를 이용한 협업필터링 기반 개인별 상품추천시스템

  • An, Do-Hyeon;Kim, Jae-Gyeong;Jo, Yun-Ho
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2004.05a
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    • pp.510-514
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    • 2004
  • Recommender systems are a personalized information filtering technology to help customers find the products they would like to purchase. Collaborative filtering is known to be the most successful recommendation technology, but its widespread use has exposed some problems such as sparsity and scalability in the e-business environment. In this paper, we propose a recommendation methodology based on Web usage mining and product taxonomy to enhance the recommendation quality and the system performance of original CF-based recommender systems. Web usage mining populates the rating database by tracking customers' shopping behaviors on the Web, so leading to better quality recommendations. The product taxonomy is used to improve the performance of searching for nearest neighbors through dimensionality reduction of the rating database. Several experiments on real e-commerce data show that the proposed methodology provides higher quality recommendations and better performance than original collaborative filtering methodology.

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Intelligent Decision Support System for Integrated Customer Satisfaction Improvement (총체적 고객만족 향상을 위한 지능형 의사결정지원시스템)

  • Lee, Jang-Hee;Yun, Ui-Tak;Park, Sang-Chan
    • Asia pacific journal of information systems
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    • v.13 no.2
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    • pp.23-46
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    • 2003
  • This paper proposes an analysis methodology that enables the establishment of improved customer satisfaction via decision support system using customer satisfaction index data and customer database of a company. The proposed methodology establishes rational future goal of a company by applying DEA, finds potential customers which correspond to demographic features of the previous target group, and improve quality factors which distinguish the quality-satisfaction-group from the quality-dissatisfaction-group through the use of machine learning tools, SOM and C4.5. Finally, we illustrate the effectiveness of our research methodology using actual data of a camera company.

Literature Review on the Experimental Designs in KSQM for 50 Years (품질경영학회 50주년 특별호: 실험계획법 분야 연구 리뷰)

  • Kim, Sang Ik;Lee, Sang Bok;Lim, Yong Bin;Jang, Dae Heung
    • Journal of Korean Society for Quality Management
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    • v.44 no.2
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    • pp.245-264
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    • 2016
  • Purpose: This article focuses on the reviewing the papers published in the Journal of the Korean Society for Quality Control (JKSQC) and the Journal of the Korean Society for Quality Management (JKSQM) since 1965, in the area of design of experiments. In this paper, moreover, some other contents of another statistical quality control areas is included. Methods: The reviewed articles are classified into the three main categories: theory and application of experimental designs, response surface methodology and mixture experiments, and roust designs. Some omitted papers in the other areas of reviewing works are also included in this paper, and the contents and relationships of the published articles are examined and summarized in each sub-field. Results: We summarize the reviewed papers in the chronological road-maps for each sub-field, and outline the relations of the connected papers. We provide comments on the contents and the contributions of the reviewed papers. The future direction of the research in the theory and application areas of experimental designs can be provided by the contents of this research. Conclusion: The diverse topics on the improving the quality in the various industry fields are studied and published on the theory, methodology and the empirical application in the fields of designs of experiments. We can see that the Korean Society for Quality Management (KSQM) has tremendously contributed on the improvement of quality in the manufacturing and service industries by publishing the reviewed articles in this paper.

Association between Discrimination Experience and Quality of Life among Non-regular workers in Hospitals (의료기관 비정규직의 차별경험과 삶의 질 관계 분석)

  • Yang, Jong-Hyun
    • Korea Journal of Hospital Management
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    • v.23 no.3
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    • pp.16-27
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    • 2018
  • Purposes: The purpose of this study was to analyze the association between discrimination experience and quality of life among non-regular workers in hospitals. Methodology: The data was collected from 292 employees of 7 university hospitals using a standardized questionnaire. In research methodology, the data was analyzed with descriptive statistics, t-test, ANOVA, pearson's correlation, multiple regression analysis. Findings: In case of non-regular workers, inequality of distribution, position unfairness, employment instability, number of discrimination experiences were found to have a negative(-) effect on quality of life. Religion, income in general characteristics had a significant positive(+) effect on quality of life. And the discrimination of non-regular woman workers was higher and the quality of life was lower than that of men. Practical Implications: These results showed that hospitals needed active efforts to create non-regular woman-friendly work environment. In addition, active religious activities gave emotional stability and positive effect to no-regular workers.

Cross-cultural Service Variation: Airline Service Quality

  • Nam, Sung-Jip
    • Journal of Distribution Science
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    • v.13 no.9
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    • pp.19-27
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    • 2015
  • Purpose - In a global economy, marketers are required to understand service quality from an international consumer viewpoint. Despite the increased need for cross-cultural research, few studies have developed service quality research international in scope. The present research aims to shed light on variations in airline service quality among international consumers. Research design, data, and methodology - Conducting crosscultural research, this study compares airline service quality variations, investigating an international consumer group and a Korean consumer group. T-test and factor analyses are applied to examine mean scores and factor structure of the airline service dimensions. Results - The results indicate there are significant differences in mean comparisons between the groups. The international consumers indicate significantly higher service perception scores than the Koreans. Further, we find that the factor structure of airline service quality diverges between the groups. The international group considers airline service quality in four dimensions, while Koreans consider it in two. Conclusions - The study sheds new light on international service variations and suggests that the field of airline service quality may differ by nations and/or cultures.