• Title/Summary/Keyword: qualitative and quantitative analysis

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Methodologies of Qualitative Survey and Analysis for ITS Projects (ITS 사업의 정성적 조사 및 분석 방법론 정립)

  • Choi, Yoon-Hyuk;Choi, Kee-Choo
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.7 no.1
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    • pp.115-126
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    • 2008
  • Since the ITS project of Gwacheon city has been implemented in 1998, feasibility analysis for various ITS projects has been conducted in quantitative and qualitative aspects. However, ITS operation manual that describes the universal standards comprehensive methodology for survey and analysis for the qualitative effects of the ITS. Although it its difficult to measure the qualitative elements, the effectiveness and achievement of ITS project can be directly evaluated from the user survey. A comprehensive methodology proposed in this paper includes the design and implementation of the qualitative survey, the procedure of data analysis, the evaluation, and proposing the enhancements. The proposed methodology that take both quantitative and qualitative aspects into account, therefore, can lead the accurate and effective assessment of ITS projects.

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A Study on the Interdisciplinary Citation Patternship (외식산업에서 조리학의 학문 분야간 문헌의 인용 유형에 관한 연구)

  • Kim, Ki-Young
    • Culinary science and hospitality research
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    • v.11 no.3 s.26
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    • pp.1-17
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    • 2005
  • The purpose of this paper was to analyze the distribution ratio of citation in researches in food service and found the relationship of study. The result was as follows. First there were remarkably quantitative researches than qualitative researches. Second, the citation ratio of social studies was high according to frequency-analysis. Third, citation frequency of publication was the highest in the pre-study that included scientific papers, newspapers, art and science contest announcement data and so on. Fourth, there was much citation ratio of domestic literature than foreign literature.

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A Cross-case Analysis of the Use of Qualitative Research Methods in Mathematics Education Focusing on Series E Journal: Exploring to Current Practices and Future Possibilities

  • Jangham Na
    • Research in Mathematical Education
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    • v.26 no.2
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    • pp.63-82
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    • 2023
  • In the context of Korean educational research, the number of qualitative research studies has gradually increased since 2000. It has become one of the most important research methods today. The field of math education is no exception to this trend, and qualitative approaches are now becoming one of the main research methods. This increase in qualitative research has contributed to the provision of detailed information about educational practice, but at the same time, the overall level of credibility in the results of qualitative research seems to be lower than that of quantitative research. This study started with the problem consciousness that the number of qualitative studies is increasing in the field of mathematical education, but there is a lack of discussion on the methodology of applying qualitative research methods. In this study, among the papers published in the journal related to mathematical education, papers using a qualitative approach are analyzed focusing on cross-case analysis. Based on the analysis results, the tendency to use qualitative approaches is diagnosed, ways of improving the validity and trustworthiness of qualitative research results in the field of mathematical education are examined, and implications and suggestions are presented.

Development and Adaption of Sustainablility Evaluation Indicators for Chungcheongbuk-Do Province - Adopting Quantitative & Qualitive Indicators - (충청북도 지속가능성 평가지표의 개발 및 적용 - 정량적 정성적 지표의 도입 -)

  • Moon, Seok-ki;Yu, Byong-Deuk
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.19 no.1
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    • pp.85-100
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    • 2016
  • Local Agenda 21 organizations have been founded at the most divisions of local government in Chungcheongbuk-Do, but there has been no methods to monitor the total Sustainable Development trends. For the alternative solution of that problem in the Province, this study purposed (1) to develop Indicators fit to this Province (2) to examine the availability of the developed indicators adopting to each division section. Indicators were developed and examined by fields and Quantity / Quality considerations. As a 1st step, committee-composed with field professionals each-selected and developed Quantitative Sustainable Development Indicators(SDIs) optimized to Chungbuk-Province through critical discussions proposing Qualitative Indicators as a suggestion. In 2nd step, developed Indicators were applied and tested upon each divisions. Statistic data were used to calculate indices. 3rd step is adoption stage of Qualitative Indicators which were tested with questionnaire survey analysis. As a results, SDIs for Chungcheongbuk-Do -38 Quantitative SDIs within 4 provisions of 11 items with 8 Qualitative indicators categorization be put off- is developed. With the application test, 5 Quantitative Indicators- were found to be not adaptable because of lack or none of statistic data. Among the 8 Qualitative Indicators, 3 pairs found to be similar results in each pair which needed to be integrated into one. With them, bio-species related and health related Indicators were proposed to be newly added. Nation wide Sustainability comparison between divisions and Ecological Indicator selection are another themes to be considered.

Productivity Measurement Model Based on Quality Cost (품질 코스트를 적용한 생산성측정 모형)

  • Lee, Jae-Ung;Sin, Yong-Baek
    • Journal of Korean Society for Quality Management
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    • v.21 no.2
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    • pp.48-60
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    • 1993
  • We have depended upon the quantitative analysis for productivity measurement. and excluded the qualitative analysis from productivity measurement. But I think that the qualitative analysis must be considered so as to get a effective productivity measurement This paper intened to establish improvement productivity measurement adopted quality cost of all the qualitative elements.

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Qualitative and Quantitative Analysis of Space Minerals using Laser-Induced Breakdown Spectroscopy and Raman Spectroscopy (레이저 유도 분해 분광법과 라만 분광법을 이용한 우주 광물의 정성 및 정량 분석 기법)

  • Kim, Dongyoung;Yoh, Jack J.
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.46 no.6
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    • pp.519-526
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    • 2018
  • In order to analyze space resources, it had to be brought to earth. However, using laser-induced breakdown spectroscopy(LIBS) and Raman spectroscopy, it is possible to analyze qualitative and quantitative analysis of space minerals in real time. LIBS is a spectroscopic method in which a high energy laser is concentrated on a material surface to generate a plasma, and the emitted light is acquired through a spectroscope to analyze the atomic composition. Raman spectroscopy is a spectroscopic method that analyzes the molecular structure by measuring scattered light. These two spectroscopic methods are complementary spectroscopic methods for analyzing the atoms and molecules of unknown minerals and have an advantage as space payloads. In this study, data were analyzed qualitatively by using principal component analysis(PCA). In addition, a mixture of two minerals was prepared and a quantitative analysis was performed to predict the concentration of the material.

Quantitative Safety Assessment for Hydrogen Station (수소 충전소에 대한 정량적 안전성 평가)

  • Seong, D.H.;Rhie, K.W.;Kim, T.H.;Oh, D.S.;Oh, Y.D.;Seo, D.H.;Kim, Y.G.;Kim, E.J.
    • Journal of the Korean Society of Safety
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    • v.27 no.3
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    • pp.111-116
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    • 2012
  • This study is about the quantitative safety assessment of hydrogen station in Korea operating with on-site type. This was written by background information that before qualitative safety assessment to write. For the qualitative safety assessment method, the study used FMEA(failure mode & effect analysis) and HAZOP(hazard & operability), and adopted the FTA(fault tree analysis) as the quantitative safety assessment method. To write the FTA, we wrote FT by Top event that hydrogen leakage can be called most serious accident of hydrogen station. Each base event collect reliability data by reliability data handbook, THERP-HRA and estimation of the engineering. Assessment looked at the high frequency and the possible risk through Gate, Importance, m.cutsets analysis.

A Study of the Priority Order Valuation for Multi-Intermodal Transfer Center (복합환승센터 투자우선순위 평가기법 연구 - 경제성분석과 AHP 분석기법을 중심으로 -)

  • Kim, Hwang Bae;Chang, Kyung Uk;Choi, Jin Hee;Kim, Dong Jin
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.30 no.6D
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    • pp.561-567
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    • 2010
  • Recently, several number of Multi-Intermodal Transfer Center are nominated to improve convenience of public transportation user. Due to budget constraints, it should be defined which is the first consideration among the discussed many works. In this circumstance, there are some absurdities in the evaluation of validity of existing methods. Therefore, we suggested the Priority Order Valuation for Multi-Intermodal Transfer Centerer. The evaluation method, we suggested, is considered quantitative analysis and qualitative analysis. In this study, we find out that B/C ratio and construction costs are strongly related to the quantitative analysis so that Multi-Intermodal Transfer Centers in metropolitan area are evaluated the positive results. Therefore, both quantitative analysis and qualitative analysis are applied to the Priority Order, metropolitan area and other area are fairly evaluated the results for the Priority Order.

Effects of Philanthropy Education on Elementary School Students in Korea : Analysis Using a Multiple Convergence Model (나눔교육을 통한 아동의 변화 연구: Multiple Convergence Model의 적용)

  • Kang, Chul-Hee;Kim, Mi-Ok;Lee, Jong-Eun;Lee, Kyoung-Eun
    • Korean Journal of Social Welfare
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    • v.59 no.4
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    • pp.5-34
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    • 2007
  • This study explores the effects of philanthropy education for elementary school students by using a mixed method. To examine the effects of philanthropy education, two different approaches in research methods are conducted with different data collected from different target groups on the same phenomenon: a) experimental designs to analyze students' change(prosocial behaviors) by philanthropy education program performed in a summer camp(43 participants) and elementary schools(162 students); and b) qualitative analysis on students' changes in perceptual, attitudinal, and behavioral aspects by students' diary and memorandum(66 participants) and intensive interviews with teachers(5 teachers) and parents(4 mothers). The analysis of both quantitative and qualitative results shows that philanthropy education has effects on students' changes in diverse aspects including prosocial behavior. First, the results of quantitative analysis show that in every component of the prosocial behavior such as helping, being kind, empathizing, sharing, protecting, and cooperating, students have positive changes after philanthropy education. Such changes are statistically significant as well. Second, the results of qualitative analysis show that students after having philanthropy education display positive changes in diverse aspects. Particularly, the quantitative results are converged with the qualitative results from students, parents, and teachers. On the other hand, unique finding from qualitative analysis is that students after having philanthropy education can have fundamental changes in their personality. Such a change is commonly confirmed by students, parents, and teachers. This study makes it possible to compare results or to validate, confirm, or corroborate quantitative results with qualitative findings on the effects of philanthropy education for students.

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Qualitative Analysis on Mixed Research in the field of Mathematics for Elementary Students (초등 수학교육 관련 혼합 연구에서 적용된 질적 연구 방법에 대한 분석)

  • Na, Jang Ham;Kim, Jinho
    • Education of Primary School Mathematics
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    • v.19 no.1
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    • pp.47-60
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    • 2016
  • The purpose of this study is to analyze how the qualitative research is applied to mixed method research and thereby to gain an insight to suggest reasonable ways of employing qualitative method in order to accomplish intended goal of research, especially in the field of mathematics education. For that purpose, this study carefully selects and analyzes 5 article that used mixed method and were published by Education of Primary School Mathematics Journal in 2012. Unlike those a few previous studied on mixed method that focused on producing general trend by simply showing quantitative information on what the frequence of used research topic, content, methods combination, quantitative methods, and qualitative methods, this study provides detailed result of qualitative analysis on mixed studies. In sum, this study concludes with practical and in-depth suggestions on how to improve validity of mixed research and qualitative research in the field of mathematic of education.