• Title/Summary/Keyword: test statistic

검색결과 796건 처리시간 0.032초

일 고등학교 학생이 지각한 사회적 지지와 자가간호역량과의 관계 연구 (A Study on the Relation Between the Perceived Social Support and Self-Care Agency of High School Students)

  • 최인령;이광숙
    • 한국학교보건학회지
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    • 제14권2호
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    • pp.237-248
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    • 2001
  • This study was designed to identify the relation between the Perceived Social Support and the Self-care Agency of high school students in a rural area. The subjects for this study were 250 students living in Chonnam province: among first grade, second grade and third grade students were 98, 89 and 63 respectively. The data were collected during the period from April 2 to 4, 2001. The instruments used in this study were the Generally Perceived Social Support Scale developed by Park, J. W.(1985) and Self-Care Agency Questionnarie developed by Deneys(1981). The data were analyzed by descriptive statistic, t-test, ANOVA, and Pearson's correlation using the SAS PC+ Program. The results were as follows: 1. The mean score of the Perceived Social Support was 3.19. 2. The mean score of the Self-care Agency was 2.65. 3. There was a significant differences in school year(F=3.11, p=.046), educational level of the father(F=3.41, p=.035) that of the mother(F=4.07, p=.019), and economic status(F=8.99, p=.000), school performance(F=16.37, p=.000) from Perceived Social Support between general characteristics. 4. There was a significant differences in economic status(F=4.55, p=.004), school performance(F=6.72, p=.002) from self care agency between general characteristics. 5. The relation between the score of the Perceived Social Support and Self-care Agency was significant(r=.49, p=.0001). The relation between the score of the direct Perceived Social Support and Self-care Agency was significant(r=.50, p=.0001) and the relation between the score of the indirect Perceived Social Support and Self-care Agency was also significant(r=.40, p=.0001). In conclusion, it was found that higher score of the Social Support was a higher level of the Self-care Agency, especially the direct Perceived Social Support. The score of the Social Support and Self-care Agency was significantly differentiated according to economic status and school performance.

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남방진동지수, 나이테 자료에 대한 허스트 기억 (Hurst's memory for SOI and tree-ring series)

  • 김병식;김형수;서병하;윤강훈
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2005년도 학술발표회 논문집
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    • pp.792-796
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    • 2005
  • The methods of times series analysis have been recognized as important tools for assisting in solving problems related to the management of water resources. Especially, After more than 40 years the so-called Hurst effect remains an open problem in stochastic hydrology. Until now, its existence has been explained fly R/S analysis that roots in early work of the British hydrologist H.E. Hurst(1951). Today, the Hurst analysis is mostly used for the hydrological studies for memory and characteristics of time series and many methodologies have been developed for the analysis. So, there are many different techniques for the estimation of the Hurst exponent(H). However, the techniques can produce different characteristics for the persistence of a time series each other. We found that DFA is the most appropriate technique for the Hurst exponent estimation for both the shot term memory and long term memory. We analyze the SOI(Southern Oscillations Index) and 6 tree-ring series for USA sites by means of DFA and the BDS statistic is used for nonlinearity test of the series. From the results, we found that SOI series is nonlinear time series which has a long term memory of H=0.92. Contrary to earlier work of Rao(1999), all the tree- ring series are not random from our analysis. A certain tree ring series show a long term memory of H=0.97 and nonlinear property. Therefore, we can say that the SOI and tree-ring series may show long memory and nonlinearity.

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Web기반 공간가상체험의 유효성 검증에 관한 연구 (A Study on the valid verification of virtual space experience through the web)

  • 김태환
    • 한국실내디자인학회논문집
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    • 제16권1호
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    • pp.126-134
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    • 2007
  • This study researches the effectiveness of virtual experiences as an evaluation method in design. For the study, I researched the result on the spatial recognition before, abstracted visual objects and factors in recognition process and made up 43 inquiries for the evaluation through the experts group. Besides, set the analytical code between recognition factor and spatial constituents, made analysis the result from it. From April 1st to June 30th in 2004, the virtual model of educational place, college main building and city library was established as a subject of the research and studied the result. The methods that are used for the study are frequent analysis, T-test, reliability analysis, factor analysis etc. and SPSSWIN Package is used for the statistic analysis. There were two times of analysis on the evaluation to analyze the effect of virtual models on the web basis, one group evaluated the virtual building same as real and the other group evaluated the building site. Then analyzed the differences and correlation between the two. In result, college building, the first subject of study, and the second city library shows that made little differences between on the spot evaluation and virtual evaluation. Therefore, it is considered that the design evaluation with virtual model on the web basis has a vantage. But some problems founded that solved between preceding and present research through the feedback. It is as follows, 1. detection of problems that insufficience validity in the first survey. 2. found some not-validity inquiries. 3. detection of necessities that qualitative improvement and technical repletion in virtual environment.

한국의 초등학생을 위한 연극교육 프로그램의 효과성에 관한 연구 (Analysis on Effectiveness Research of Drama Education Program for Elementary School Students in Korea)

  • 신동인;조연호
    • 한국콘텐츠학회논문지
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    • 제14권1호
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    • pp.528-536
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    • 2014
  • 본 연구에서는 초등학생을 위한 연극교육 프로그램의 효과성을 전체적으로 통합하여 제시하고 보다 효과적인 연극교육 프로그램의 실행에 대한 방안을 제시하기 위하여, 국내의 연극교육 프로그램의 효과성에 대한 연구들을 메타분석하였다. 자료 수집은 2013년 7월까지 국내에서 발표된 석 박사 학위논문 및 학술지에 게재된 논문을 대상으로 하였고 최종 19편의 연극교육의 효과를 검증하는 실험연구논문을 분석하였다. 메타분석을 위하여 메타분석의 통계프로그램인 CMA(Comprehensive Meta-Analysis) software 2.0을 사용하였다. 연구의 주요 결과를 정리하면 다음과 같다. 첫째, 초등학생을 위한 연극교육 프로그램의 평균효과크기를 살펴보면, 표현력은 가장 강한 효과크기(1.103)를 나타냈고, 자아인식(1.011), 창의력(.858)의 순서대로 강한 효과크기를 나타내었다. 사회성은 보통 이상의 효과크기(.672)를 나타냈다 둘째, 연극교육 프로그램의 효과가 조절변수에 따라 어떻게 차이가 나는지 살펴보았다. 통계적으로 유의한 조절변수로 나타난 것은 표현력과 창의력에 영향을 미치는 것으로 나타난 "총 시행횟수"이었다. 본 연구결과를 바탕으로 초등학생을 위한 연극교육 프로그램의 시행에 대한 함의와 제한점을 제시하였다.

초등학생을 위한 해결중심 집단상담프로그램의 효과에 관한 메타분석 (A Meta-Analysis on the Solution Focused Group Program Effects for Elementary School Children)

  • 박정임
    • 한국콘텐츠학회논문지
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    • 제14권11호
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    • pp.476-485
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    • 2014
  • 본 연구에서는 초등학생을 위한 해결중심 집단상담프로그램의 효과크기를 통합하여 제시하고, 보다 효과적인 해결중심 집단상담프로그램에 대한 실천적 방안을 제시하기 위하여 메타분석을 실시하였다. 자료 수집은 2014년 5월까지 국내에서 발표된 석 박사 학위논문 및 학술지에 게재된 논문 중 메타분석의 대상선정기준에 따라 논문을 선정하여 분석하였다. 메타분석을 위해서는 CMA(Comprehensive Meta-Analysis) software 2.0을 사용하였으며, 연구의 주요 결과는 다음과 같다. 첫째, 초등학생을 대상으로 국내에서 실시된 해결중심 집단상담프로그램의 평균효과크기를 살펴보면, 자아존중감의 효과크기가 1.61으로 가장 높게 나타났고, 학교적응능력이 1.35, 대인관계능력이 1.07, 자기효능감이 1.03 의 순으로 나타나서 네 가지 변수 모두 큰 효과크기를 보였다. 둘째, 해결중심 집단상담프로그램의 효과크기가 조절변수에 따라 어떻게 차이가 나는지 살펴보았다. 통계적으로 유의미한 조절변수는 자아존중감의 경우에 '총회기수'이었고 학교적응능력의 경우에는 '총회기수'와 '1회기당 시간'으로 나타났다. 본 연구결과를 바탕으로 초등학생을 위한 해결중심 집단상담프로그램의 실천적 함의와 전략을 제언하였다.

실내환경과 건설현장 온도변수를 고려한 고력볼트 체결력 예측 (Estimation on Clamping Force of High Strength Bolts Considering Temperature Variable of Both Site conditions and Indoor Environments)

  • 나환선;이현주
    • 복합신소재구조학회 논문집
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    • 제6권3호
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    • pp.32-40
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    • 2015
  • The torque shear high strength bolt is clamped normally at the break of pin-tail specified. However, the clamping forces on slip critical connections do not often meet the required tension, as it considerably fluctuates due to torque coefficient dependent on lubricant affected temperature. In this study, the clamping tests of torque shear bolts were conducted independently at indoor conditions and at construction site conditions. During last six years, temperature of candidated site conditions was recorded from $-11^{\circ}C$ to $34^{\circ}C$. The indoor temperature condition was ranged from $-10^{\circ}C$ to $50^{\circ}C$ at each $10^{\circ}C$ interval. As for site conditions, the clamping force was reached in the range from 159 to 210 kN and the torque value was from 405 to $556 N{\cdot}m$. The range of torque coefficient at indoor conditions was analyzed from 0.126 to 0.158 while tensions were indicated from 179 to 192 kN. The torque coefficient at site conditions was ranged from 0.118 to 0.152. Based on this test, the variable trends of torque coefficient, tension subjected temperature can be taken by statistic regressive analysis. The variable of torque coefficient under the indoor conditions is $0.13%/^{\circ}C$ while it reaches $2.73%/^{\circ}C$ at actual site conditions. When the indoor trends and site conditions is combined, the modified variable of torque coefficient can be expected as $0.2%/^{\circ}C$. and the modified variable of tension can be determined as $0.18%/^{\circ}C$.

ROC와 CAP 곡선에서의 최적 분류점 (Optimal Threshold from ROC and CAP Curves)

  • 홍종선;최진수
    • 응용통계연구
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    • 제22권5호
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    • pp.911-921
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    • 2009
  • 신용평가 연구에서 부도와 정상차주에 대한 판별력을 평가하는 방법으로 Receiver Operating Characteristic(ROC)와 Cumulative Accuracy Profile(CAP) 곡선을 사용한다. ROC 곡선에서 최적의 분류정확도를 갖는 분류점과 CAP 곡선에서 최대의 이익을 나타내는 분류점은 일반적인 정확도의 개념으로 정의된 동일한 성과를 가진 접선을 사용하여 구한다. 본 연구에서는 정확도의 대안적인 측도로 진실율을 제안하고, 이 진실율을 이용하여 ROC와 CAP 곡선에서 대안적인 최적의 분류점을 구한다. 대부분 실제 차주의 모집단에서 부도차주는 정상차주보다 훨씬 수가 적다. 이러한 경우에 진실율은 정확도보다 비용함수의 측면에서 더욱 효율적일 수 있다. 진실율을 이용하여 최적의 분류정확도를 나타내는 분류점과 최대의 이익을 의미하는 분류점에 대응하는 스코어는 동일하다는 것을 보였으며, 이 스코어는 부도와 정상 차주의 분포함수의 동일성을 검정하는 Kolmogorov-Smirnov 통계량에 대응하는 스코어와도 일치하는 것을 발견하였다.

과학·체육 융합영재교육 프로그램이 초등영재 학생들의 자아효능감에 미치는 영향 (The Effect of Convergence Gifted Education Program for Science-Physical Education on Self-Efficacy of the Gifted Students in Elementary School)

  • 이호민;손정우
    • 과학교육연구지
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    • 제39권2호
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    • pp.255-266
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    • 2015
  • 이 연구의 목적은 과학 체육 융합영재교육 프로그램이 초등영재 학생들의 자아효능감에 미치는 영향을 알아보는 데 있다. 그래서 초등영재 5학년 학생들을 대상으로 2주제 8시간의 과학 체육 융합영재교육 프로그램을 실시하였고, 사전-사후 자아효능감 검사와 면담을 통해 영향과 원인을 알아보았다. 그 결과는 다음과 같다. 첫째, 과학 체육 융합 영재교육 프로그램은 영재학생들의 자아효능감을 향상시키는 효과가 있었다. 특히 '자신감'과 '과제 난이도 선호'에서 통계적인 유의미한 차이가 있었다. 둘째, 과학 체육 융합영재교육 프로그램은 영재 학생들에게 자신감과 도전의식을 심어줄 수 있으며 특히 산출물이 실제 현장에 적용될 때 자신감을 더 높일 수 있음을 알 수 있었다. 이로부터 영재 학생들의 자아효능감을 높이기 위해서는 산출물을 실제 현장에 적용하는 단계까지 프로그램이 구성되어야 함을 알 수 있었다.

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QTL Analysis of Teat Number Traits in an F2 Intercross between Landrace And Korean Native Pigs

  • Park, Hee-Bok;Han, Sang-Hyun;Yoo, Chae-Kyoung;Lee, Jae-Bong;Cho, Sang-Rae;Cho, In-Cheol
    • 한국수정란이식학회지
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    • 제31권4호
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    • pp.313-318
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    • 2016
  • The aim of this study was to identify quantitative trait loci (QTLs) influencing teat number traits in an $F_2$ intercross between Landrace and Korean native pigs (KNP). Three teat number traits (left;right;and total) were measured in 1105 $F_2$ progeny. All experimental animals were genotyped with 173 informative microsatellite markers located throughout the pig genome. We detect that seven chromosomes harbored QTLs for teat number traits: genome regions on SSC1;3;7;8;10;11;and 13. Six of fourteen identified QTL reached genome-wide significance. In SSC7;we identified a major QTL affecting total teat number that accounted for 5.6 % of the phenotypic variance;which was the highest test statistic (F-ratio = 61.1 under the additive model;nominal $P=1.3{\times}10^{-14}$) observed in this study. In this region;QTL for left and right teat number were also detected with genome-wide significance. With exception of the QTL in SSC10;the allele from KNP in all 6 identified QTLs was associated with decreased phenotypic values. In conclusion;our study identified both previously reported and novel QTL affecting teat number traits. These results can play an important role in determining the genetic structure underlying the variation of teat number in pigs.

적외선 체열촬영을 이용한 통증 치료효과의 평가 (Evaluation of the Therapeutic Effects in Pain Management Using Infrared Thermal Imaging)

  • 김민정;이승윤;김성협;임정애;강포순;우남식;이예철
    • The Korean Journal of Pain
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    • 제14권2호
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    • pp.164-170
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    • 2001
  • Background: Infrared Thermal Imaging (ITI) is an effective tool for the diagnosis of disease and evaluation of the therapeutic effects following pain treatment. Patients who were treated for pain in pain clinic described the intensity of pain and the degree of change of their pain using a visual analogue scale (VAS). In this study, the usefulness of ITI following multimodal methods for pain management were compared with the change of VAS. Methods: 1119 patients were evaluated. The patients were treated with stellate ganglion block, epidural block or trigger points injection. Before treatment, the temperature difference (${\Delta}T$) of the involved area and the corresponding area on the opposite side of the body was measured using ITI and VAS was assessed. After treatment, the temperature difference (${\Delta}T$) between the normal and involved areas, the change of ${\Delta}T$ (${\Delta}dT$), VAS and the change of VAS (${\Delta}VAS$) were measured. Statistic correlations between ${\Delta}dT$and ${\Delta}VAS$ were calculated in all groups. Results: Correlation of the ${\Delta}dT$ and ${\Delta}VAS$ was significant by contingency coefficient test. (SGB group, C = 0.358, Epi group, C = 0.377, TPI group, C = 0.374, P < 0.05) Conclusions: ITI is a reliable tool for the assessment of therapeutic effects following multidimensional management of painful disease.

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