• 제목/요약/키워드: statistical evaluation

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A STATISTICAL APPROACH FOR DERIVING KEY NFC EVALUATION CRITERIA

  • Kim, S.K.;Kang, G.B.;Ko, W.I.;Youn, S.R.;Gao, R.X.
    • Nuclear Engineering and Technology
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    • 제46권1호
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    • pp.81-92
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    • 2014
  • This study suggests 5 evaluation criteria (safety and technology, environmental impact, economic feasibility, social factors, and institutional factors) and 24 evaluation indicators for a NFC (nuclear fuel cycle) derived using factor analysis. To do so, a survey using 1 on 1 interview was given to nuclear energy experts and local residents who live near nuclear power plants. In addition, by conducting a factor analysis, homogeneous evaluation indicators were grouped with the same evaluation criteria, and unnecessary evaluation criteria and evaluation indicators were dropped out. As a result of analyzing the weight of evaluation criteria with the sample of nuclear power experts and the general public, both sides recognized safety as the most important evaluation criterion, and the social factors such as public acceptance appeared to be ranked as more important evaluation criteria by the nuclear energy experts than the general public.

최근 10년간(2000-2009) 사상체질의학회지 게재논문의 통계분석방법에 대한 연구 (An Evaluation of the Statistical Techniques Used in Papers of the Journal of Sasang Constitutional Medicine (2000-2009))

  • 박기현;김상혁;김홍기;이시우
    • 사상체질의학회지
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    • 제22권4호
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    • pp.49-55
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    • 2010
  • 1. Objectives The purpose of this study is to assess the statistical methods used in the Journal of Sasang Constitutional Medicine and to identify the types of errors in the statistical analysis. 2. Methods We have reviewed quantitative articles published in the Journal of Sasang Constitutional Medicine from 2000 to 2009. Except for the case report, a total of 505 articles was reviewed by year. We focused on the methods of statistics in these articles. We have analysed the number of thesis used the statistical methods, the number of the statistical methods, the types of the statistical methods, and the errors of the statistical methods with the object of 202 thesis used the statistical method. 3. Results 1. Of the 370 articles, 202 used inferential statistics. 2. The most dominant was the thesis with one type of the statistical method forming 61.9% (125 thesis) of the total. 3. The ANOVA was the statistic of choice overall (40.1%), followed by the t-test (35.6%). 4. By examining the errors of the statistical methods, there were 49 thesis with errors among 81 thesis using ANOVA, 25 thesis among 72 thesis using t-test, and 18 over 62 thesis using chi-squared test. 4. Conclusions We have found various mistakes or misuses in the applications of statistical methodologies in the articles published in the Journal of Sasang Constitutional Medicine. It is necessary to present the cases of inappropriate statistical methods in order to improve the quality of academic researches. So long as Sasang constitutional medicine uses the statistical methods, researchers should fully examine and be aware of the statistical methods which they wish to use through other research articles, and statistic publications.

인터넷과 슬라이드를 이용한 경관평가방법의 비교 (A Comparison of Landscape Evaluation between the Internet and Slide Method)

  • 허준
    • 한국조경학회지
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    • 제29권5호
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    • pp.20-27
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    • 2001
  • The purpose of this study is to investigate and compare the validity and the reliability of the visual simulation method using the internet. For this. the evaluation of the artificial and natural landscape through the medium of color slides are compared with the internet survey. Data is analysed through the comparison of t-test between the two media by landscape type, and spatial image is analysed by factor analysis algorithm. Principle component analysis using Varimax Method is applied for extraction and factor rotation respectively. The results of this study can be summarized as follows; There are no statistical differences between the two methods with artificial and natural landscape in the total data that included second tests. Factors covering the spatial image are found to be \`aesthetic\`, \`spatial shape\`, and \`familiarity\`. Total variance is obtained as 66.4%. There are no statistical differences between the two methods in 2/3 of the cases. In the case of far view of artificial landscape, the results of the t-test show that the two methods are exactly the same. Especially in the case of the artificial far landscape shows no difference of all factors between two methods. There are no differences between first and second tests of the same media and the same landscape type. And it shows the reliability of this method. These results suggest that the probability that the internet can be used as a medium of landscape evaluation and gathering information on anyone\`s landscape image. Simulation techniques with the internet survey method should be further developed for practical application.

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범주형 재무자료에 대한 신용평가모형 검증 비교 (Validation Comparison of Credit Rating Models for Categorized Financial Data)

  • 홍종선;이창혁;김지훈
    • Communications for Statistical Applications and Methods
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    • 제15권4호
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    • pp.615-631
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    • 2008
  • 재무자료에 대한 신용평가모형은 각각의 재무변수를 평활한 예측부도율로 변환하여 사용한다. 본 연구에서는 연속형 재무자료를 변환하여 설정된 신용평가모형의 문제점을 살펴보고, 연속형 재무변수를 다양한 형태로 범주화한 신용평가모형들을 제안한다. 범주형 재무자료를 사용해서 개발한 여러 종류의 신용평가모형들의 성과를 다양한 적합성 검증 방법으로 비교하고, 범주형 재무자료를 이용한 신용평가모형의 유용성을 토론한다.

미용관련학과 학생들의 교육과정 주요요인과 교육만족도 (A Study of Student Satisfaction from Beauty Art-Related Departments on Educational Assessments)

  • 권도희;정영애
    • 보건의료산업학회지
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    • 제6권4호
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    • pp.231-243
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    • 2012
  • This study is aimed to improve future-oriented curriculum by investigating the satisfaction of students from beauty art-related departments on their curriculum and major courses and proposing their basic direction and improvement plan. For this, a survey was conducted against students from beauty art-related departments in Busan (5 junior colleges and 1 four-year university). The following results were obtained: First, according to a correlation analysis on major questionnaire items on the curriculum in beauty art-related departments, statistical significance was observed in 'curriculum development', 'facility and administrative & financial supports', 'instructor/teacher activities', 'educational evaluation activities', 'academia-industry cooperation activities' and 'output evaluation'. In terms of educational satisfaction, statistical significance was observed in all positive relations. Second, according to regression analysis on the evaluation of curriculum output factors in beauty art-related departments, output factor levels were high as 'academia-industry cooperation activities', 'age', 'teacher/instructor activities', curriculum requirement analysis' and 'curriculum development' were high. In overall, relatively good results (69.0%) were observed. A further study needs to be performed for improvement of satisfaction of students majoring in beauty art on their curriculum in educating students from beauty art-related departments by applying their educational evaluation to optimum standards.

지방부 교차로의 도로설계 안전성 판단 알고리즘 구축을 위한 AMF 개발 (신호교차로를 중심으로) (Development of Accident Modification Factors for Road Design Safety Evaluation Algorithm of Rural Intersections)

  • 김응철;이동민;최은진;김도훈
    • 대한교통학회지
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    • 제27권3호
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    • pp.91-102
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    • 2009
  • 도로설계 안전성을 평가하기 위해서는 도로의 설계 요소변화가 사고에 미치는 영향을 예측할 수 있어야 한다. 이를 위해 본 연구에서는 통계적 방법, 사고이력, 전문가의 판단, 그리고 기존문헌고찰 등 다양한 방법을 통하여, 설계요소의 특징과 사고율 및 사고빈도의 관계를 반영할 수 있는 AMF(Accident Modification Factor)를 개발하고자 하였다. 본 연구에서는 AMF를 좌회전전용차로, 우회전전용차로, 시거, 교차각 등의 항목을 대상으로 개발하였다. 개발된 AMF를 적용한 경우의 사고 예측값, 사고예측모형을 통한 예측값을 실제 사고데이터와 비교분석함으로써 적정성을 검토하였다. 분석결과, AMF를 적용한 예측값이 사고예측모형을 통한 예측 값보다 예측력이 우수함을 확인할 수 있었다. 이러한 결과는 사고를 예측함으로써 도로설계 안전성을 평가하는 알고리즘에 있어 AMF가 도로의 설계요소의 특성을 보다 효과적으로 반영하며, 지방부 교차로에서 각각의 해당요소가 사고에 미치는 영향을 판단할 수 있는 지표가 될 수 있음을 의미한다.

공공도서관 운영평가지표의 개선 내용에 관한 연구 (A Study on the Improvement in Evaluation Indicators of Public Libraries)

  • 김홍렬
    • 한국도서관정보학회지
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    • 제44권2호
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    • pp.77-95
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    • 2013
  • 평가지표(evaluation indicator)란 공공기관이나 기업 등에서 공정한 평가를 진행하기 위해 작성하는 문서로서, 평가표 작성에 앞서 그 기준이 되는 사항을 정하고 이를 명시한 문서를 말한다. 평가지표에는 평가기준과 평가요소, 평가항목, 평가방법, 배점 등 평가 전반에 관한 사항이 구체적으로 명시되어야 하며, 이를 통해 평가의 공평성과 투명성을 확보할 수 있다. 본 연구는 공공도서관 운영평가지표의 효용성 정도를 면밀히 분석하여 실제 운영평가에서 개별 도서관 담당자가 평가내용을 이해하기 쉽고, 평가지표를 통해 객관적이고 신뢰성 있는 데이터를 수집할 수 있도록 개선이 필요한 평가지표 항목을 선정하고 이에 대한 개선 내용을 제시하는데 그 목적이 있다. 이를 위하여 본 연구에서는 한국 공공도서관 운영평가지표의 면밀한 분석과 평가지표의 평균 도달률, 운영평가지표와 통계지표와의 비교분석을 통하여 개선이 필요한 항목을 선정하고 이에 대한 개선 내용을 제시하였다. 제안된 내용은 향후 공공도서관의 운영평가지표의 개선에 반영될 수 있다.

직무교육훈련 평가수준들간의 관계 (The Relationships between the Levels of Evaluation of the Training & Development for Job skills)

  • 김진모
    • 농촌지도와개발
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    • 제4권1호
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    • pp.305-315
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    • 1997
  • The propose of this study was to analyze the relationships among the levels of training & development evaluation (reaction, learning, transfer). The study has been conducted on 730 trainees who attended in the basic accounting program in L training and development institution through three incidents of tracked research such as reaction survey right after the conclusion of training, learning evaluation through test, and an evaluation of the transferability after 3 months of training. Questionnaires and test papers for analyses were used after their reliability, validity, difficulty, and discrimination have been verified on a pre-test. The research has been conducted for six months from 4 March 1996 to the end of August 1996, and data have been collected through direct research and survey through mail. The collected data have been worked on at SAS program for Windows with a statistical significance level of 5%. Statistical method that had been used was Pearson's correlation coefficient. The result and conclusion acquired from this study were as follows: Between reaction and learning, learning and transfer of training, only a weak positive correlation exists and explanation or prediction variance showing hierarchical relationship was quite weak with 1%. Thus, this research not only does not strongly support Kirkpatrick(1976)'s hierarchical model of $reaction{\rightarrow}learning{\rightarrow}transfer$, but also indicates that the separate measurement on each levels of training evaluation needs to be done. On the other hand, there was a relatively strong positive correlation between reaction and transfer of training. Based on the result, the conclusion, and the restriction perceived through this study, the following suggestions were made. 1. There is a need to empirically analyze and verify the hierarchy of all levels of training evaluation including the evaluation of the fourth level (result) such as organizational productivity, organizational satisfaction, and separation rate. 2. A great deal of efforts will be needed to systematically analyze what the relationships are among the methods measuring the level of evaluation of the training and development, and to apply this result to the training field.

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