• 제목/요약/키워드: Spearman

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국가 연구개발사업의 성과 증진을 위한 전략적 스핀오프 추진 방안 -원자력 기술을 중심으로- (Spin-off Strategies for the Improvement of the Performance National Nuclear R & D Project)

  • 이태준;김현준;정환삼;양맹호;최영명
    • 기술혁신학회지
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    • 제1권2호
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    • pp.208-219
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    • 1998
  • In the light of the strategic utilization of the national R & D projects, this paper is to induce the spin-off strategies to improve the national R & D effectiveness through analyzing the spin-off characteristics of nuclear technologies, the spin-off status of the advanced countries and the case study of Korean nuclear spin-offs. Spin-off process is viewed as a three-stage operation, such as preparation stage, implementation stage and maintenance stage. In order to find the correlation between the influencing factors and spin-off effectiveness, the Spearman's correlation coefficient was employed as a specific statistical technique. By integrating this correlation, spin-off process and spin-off strategies, this paper presents an efficient framework to improve the spin-off effectiveness.

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비모수적(非母數的) 통계(統計) 프로그램의 개발(開發) (Computer Programs for Nonparametric Tests)

  • 배도선;장중순;김상복
    • 대한산업공학회지
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    • 제12권2호
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    • pp.101-108
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    • 1986
  • Computer programs for IBM PC/XT/AT or compatibles, are presented for running 9 nonparametric tests. They include sign test, Wilcoxon signed rank test, Mann-Whitney Wilcoxon test, Kruskal-Wallis test, Kolmogorov-Smirnov one sample and two sample tests, Kendall and Spearman rank correlation coefficient tests, and Chi square test for contingency table. Each program is written with BASIC language and is combined into a statistical package, 'NONPARA'. It is easily accessible through the menu programs. The alogorithms on which each test is based, are also explained and 3 examples are given.

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측우기 자료를 포함한 서울 강수량 시계열에 대한 추세분석 및 파엽분석 (Trend analysis and wavelet transform of time series of precipitation including the Chukwookee observation in Seoul)

  • 정현숙;박정수;임규호;오재호
    • 응용통계연구
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    • 제13권2호
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    • pp.525-540
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    • 2000
  • 본 논문에서는 측우기 관측자료와 현대 관측자료로 이루어진 서울 강수량 시계열 자료에 나타난 시간에 따른(년도별 및 계절별)변화 및 변동 특성을 파악하고자 한다. 이를 위하여 먼저 200여년 간의 강수량 시계열에 어떤 특정한 증감 추세가 있는지를 알아보는 추세분석을 실시하였다. 그리고 추세뿐만 아니라 시간에 따른 강수량의 주기성 및 변동성을 더 자세히 알기 위하여 파엽 변환(wavelet transform)을 실시하여 여러 진동 모드들의 시간에 따른 변화 양상을 분석하였다.

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범주형 품질특성의 최적설계 사례연구 (Case Studies on the Optimal Parameter Design with Respect to Categorial Characteristics)

  • 박종인;배석주;김만수
    • 산업경영시스템학회지
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    • 제32권3호
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    • pp.135-141
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    • 2009
  • A variety of statistical methods are applied to model and optimize responses, related to product or system's quality, in terms of control and noise factors at design and manufacturing stages. Most of them assume continuous response variables but, assessing the performance of a product or system often involves categorical observations, such as ratings and scores. Although most previous works to deal with the categorical data provide sorhisticated response models and ensure unbiased outcomes, they require heavy computation to estimate the model parameters, as well as enough replications. In this study, we present some practical approaches for optimal parameter design with ordered categorical response when only a few or no replication is available. Two real-life examples are given to illustrate the presented methods.

웹기반 교육에서의 예비 유아교사의 학습자 특성과 학습효과간의 관계 연구 (Learning Effects of Web Based Instruction by Characteristics of Early Childhood Educators in Training)

  • 천희영
    • 아동학회지
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    • 제25권4호
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    • pp.163-175
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    • 2004
  • In this study, 63 university seniors majoring Child Studies were in an 8-week Web Based Instruction (WBI) program. Student characteristics of learning motivation, self-regulatory learning strategy, and learning style (Kolb, 1985) were the independent variables. Learning effects as dependent variables were measured by paper test and work assessment. Spearman's $\rho$ was calculated and tests of rank order difference were used for the data analysis. Results showed that learning motivation and self-regulatory learning strategy had meaningful positive relations with learning effects on the paper test score. Learning effects showed differences by learning style. These findings indicated that the learner's characteristics should be considered in the design and development of more effective WBI environments.

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Biological Contamination Parameters of Cotton Lint as Biomarkers for Fibre Quality; A Preliminary Study

  • Lane Samantha R.;Sewell Robert D.E.;Jiang Robert
    • Fibers and Polymers
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    • 제7권1호
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    • pp.8-11
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    • 2006
  • It has been reported for several decades that microbes, which naturally contaminate cotton fibres during crop growth and subsequent storage can have an adverse effect on the structural quality of cotton lint. Although several studies have analysed the relationship between numbers of Gram-negative bacteria or bacterial endotoxin and particular physical properties, these studies have been limited to cotton from the United States, and the possible effects of fungal contamination have not been examined in detail. This study quantified the Gram-negative bacteria and fungal cells, as well as measuring concentrations of bacterial endotoxin and fungal glucan, on cotton lint samples from international sources. Spearman's rank correlation coefficients calculated between these results and quality data analysed by an automated testing instrument revealed several significant correlations. Findings included inverse correlations between the biological contamination parameters and fibre elongation, micronaire and reflectance. The possible causes and implications of these findings were also discussed.

초등학교 교과서의 어휘 통계 분석 연구 : 한국어 세종 코퍼스와의 비교를 중심으로 (The Study Of Lexical Statistics Analysis For Elementary School Textbook : Focusing On Comparing The SEJONG Corpus In Korean)

  • 유원희;임희석
    • 컴퓨터교육학회논문지
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    • 제18권1호
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    • pp.99-108
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    • 2015
  • 본 논문에서는 초등학교 교과서 말뭉치를 구축하고, 초등교과서에서 나타나는 어휘들에 대하여 통계분석을 실시하였다. 또한 초등 교과서가 일반생활에서 사용하는 어휘와 얼마나 유사한지를 살펴보기 위하여 스피어만 상관관계 분석을 실시하였다. 연구결과로 초등교과서의 말뭉치 구축 모습과 실제 예시를 보였고, 상관관계 분석을 통하여 초등교과서와 일반 말뭉치와의 상관관계를 수치적으로 보였다.

다중지능에 의한 부모-교사의 유아 잠재능력 평가간의 인식비교 연구 (Assessment by Parents and Teachers of Young Children's Potential Abilities Based on Multiple Intelligences Theory)

  • 김명희;신화식
    • 아동학회지
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    • 제22권4호
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    • pp.33-50
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    • 2001
  • This research analyzed differences between parents and teachers in assessment of young children's potential abilities based on multiple intelligences theory. Subjects were 10 boys and 10 girls, 4 and 5 years of age and their parents and teachers. Children's potential abilities were measured by the Korean Project Spectrum(KPS) and by the assessments of parents and teachers. Data were analyzed by SPSS. Statistical methods were Cronbach's ${\alpha}$, t-test, and Pearson's and Spearman's correlations. Results revealed differences between the assessments of parents and of teachers. While teacher assessments were very similar to the results of the KPS on logical mathematical and linguistic intelligence, the results of parents' assessments were different from the results of the KPS on musical, interpersonal-intrapersonal, and naturalistic intelligence.

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친구간 갈등해결방식에 대한 자기 보고와 실제 행동의 관계 (The Relationship between Self-report, Hypothetical Interview, and Observation about Conflict Resolution Strategies between Friends)

  • 김송이
    • 대한가정학회지
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    • 제44권6호
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    • pp.71-78
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    • 2006
  • The purposes of this study were firstly to assess the differences of conflict resolution strategies between friends according to children's peer status, and secondly to investigate the relationship of conflict resolution strategies measured by self-report, hypothetical interview, and observation methods. Thirty-four dayds in elementary 5th graders were selected according to peer status and friendship. Collected data were analyzed tv t-test and Spearman's correlation. The results of this study showed that children's conflict resolution strategies differed according to their peer status. Specially, popular children reported using and experiencing compromising/integrating strategies more than rejected children did. Rejected children reported using and experiencing dominating strategies more than popular children did. Secondly, there were meaningful correlations between compromising/integrating and dominating strategies, as measured by self-report, hypothetical interview, and observation methods. However, no relations emerged among avoiding, obliging, and intervention requesting strategies, as measured by self-report, hypothetical interview, and observation methods.

멀티플렉스에서의 물리적 서비스환경과 고객의 만족에 관한 연구 (A Study on Physical Service Environment and Customer's Satisfaction in Multiplex)

  • 장경;고현민
    • 산업경영시스템학회지
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    • 제27권2호
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    • pp.29-36
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    • 2004
  • As Lately movie industry and related market becomes larger and people have had more spare time, people's interest in multiplex grows higher, This paper studies relationships between physical service environment and customer's satisfaction in multiplex. The number of subjects in this study is 346 persons stayed at four multiplexes, among which we obtained valid responses from 326 persons through questionnaire investigation. We held hypotheses for the relationships, and for the testing, used methods are Spearman's correlation, Mann-Whitney test, etc, and for statistical analysis, SPSS 10.1 software was used. Thus, we found statistically significant results, that is, the relation between physical service environment and customer's satisfaction is positive: the higher evaluation about physical service environment is, the more customer's universal satisfaction is. Information about the significant relation's intensity of many indicators in physical service environment, which is given in this paper, can be used for attaining higher customer satisfaction and spreading more effective management activities in multiplex.