• 제목/요약/키워드: path coefficient analysis

검색결과 215건 처리시간 0.024초

농촌지역주민의 의료이용행위에 영향 주는 자극요인분석 (Analytical Studies on Medical Utilization Behaviors in Rural Areas)

  • 김영임
    • 대한간호학회지
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    • 제15권2호
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    • pp.5-15
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    • 1985
  • This study was conducted for the purpose of fin-ding out the variance explaining the medical facilities utilization behavior, which is defined adaptation behavior Process by focal, contextual, residual stimuli in Roy's Adaptation Model. What kinds of characteristics can explain adaptation behavior in Roy's Model? And which is the relative importance of input variables? For this analysis, stepwise multiple regression and path analysis was used. The data come from the 1981 Baseline Household Interview Survey in remote rural area. The findings of the analysis can be summarized as follows: First, Total variance of independant variables for adaptation behavior, that is medical facilities utilization including clinic, drug store, health center, herb medicine was shown 16.2 percent. The most important variable which explain the dependent variable was the occurance of illness with the Ra of value 0.112. The illness symptom, living level, regular care source was shown important variables with relatively high the R²value and significant beta coefficient. Second, in the path analysis of variables which is selected important variables, the occurance of illness was shown variable which has the highest direct effect which 0.297 path coefficient. Also the education level of household was shown variable which has the highest indirect effect through living level and the occurance of illness in causal model. Third, This analysis suggests that the occurance of illness belonging focal stimuli are more influenced than others. To sum up, It is seem to the occurance of illness, illness symptom belonging focal stimuli have high explanation ability through direct effect, education level of household among contextual stimuli have explanation ability through indirect effect.

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외식기업 브랜드 자산 구성 요인간의 관계 연구 (Relationships among Brand Equity Components)

  • 김영훈;조용범
    • 한국조리학회지
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    • 제14권2호
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    • pp.128-137
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    • 2008
  • The importance of brand and brand equity has greatly increased not only in the professional perspectives but also in academic viewpoints. Especially, lots of related studies have been focused on the components of brand equity itself. However, this study concentrates on the relationships of brand equity components for understanding consumers' attitudes toward the brands of the food-service businesses. The basic research model consists of 4 brand equity components: brand awareness, perceived quality, brand image, and brand preference. Research data are gathered through survey questions responded by university students. For statistical analysis, correlation analysis, factor analysis, and covariance structure analysis are carried out. The result of this study are summed up as follows. Among the brand equity components, brand awareness had a great effect on perceived quality(path coefficient; 0.476). Brand image highly influenced brand preference(path coefficient; 0.439).

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Agronomic Characters and Their Correlation Coefficient on Black Seeded Soybeans Collected in Chonnam Province

  • Kwon, Byung-Sun;Choi, Seong-kyu;Shin, Jeong-Sik;Shin, Dong-Youn;Kyu Hwan
    • Plant Resources
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    • 제5권2호
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    • pp.118-123
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    • 2002
  • In order to obtain the genetic information on the quantitative characters of black seeded soybeans, which would be needed to improve selection efficiency for breeding high yielding genotype, 45 varieties of black seeded soybeans collected in Chonnam, Korea were grown and variations of several important characters were observed. Heritability of each observed character, phenotypic and genotypic correlations among the characters and contribution of each yield component on grain yield through path coefficient analysis were estimated. Both number of pods per plant and 100-seed weight showed not only high heritability but also highly significant phenotypic and genotypic correlation with seed yield, and hence it was desirable to select plants with more number of pods per plant and higher 100-seed weight than raise seed yield of black seeded soybeans collected in Chonnam. In addition, number of pods per and 100-seed weight were proved to be the most influential variables on the viability of seed yield by path coefficient analysis. Since these showed the high heritability of number of pods per plant, selection of plants with higher 100-seed weight would be more efficient for breeding high yielding genotype.

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누에의 실용형질에 대한 유전력, 유전상관 및 경로계수의 분석 (Heritability, Genetic Correlation and Path Coefficient Analysis of Economic Characters in the Silkworm, Bombyx mori)

  • 정원복
    • 한국잠사곤충학회지
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    • 제31권2호
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    • pp.91-101
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    • 1989
  • 가잠육종의 선발에 대한 유전적 Parameter를 추적학 ldnl해 누에 일본종계통 3, 중국종계통 4 모두 7개 품종을 이면교배하여 주요 견성과 사질의 유전력과 유전상관을, 그리고 유전상관의 값을 이용하여 여러 형질이 직접 또는 간접적으로 견사량에 미치는 영향을 구명하기 위한 경로계수를 추정하였다. 원잠종을 재료로 한 각 형질의 유전력은 F1, F2세대에서 5령경과, 단견중, 견층중, 견층비율, fibroin량, 견층연감율, 견사량 등이 모두 76.65% 이상이었다. 형질상호간의 상관관계를 F1, F2 세대에서 자웅별로 보면 표현형상관과 유전상관의 값은 대체로 정의 방향이었고, 유전상관의 값이 표현형상관의 값보다 일반적으로 높았다. 견사량과의 형질상호간의 상관관계에서 단견중, 견층중, 견층비율, fibroin량 등은 F1, F2세대의 자웅이 모두 0.727 이상의 높은 유전상관 값을 보였다. 주요 형질들의 유전력이 대체로 높고 유전상관의 값이 정의 방향이므로 이들 형질은 선발이 용이할 것으로 기대된다. 경로계수는 견사량에 관여하는 직접효과가 F1세대에서 자의 견층중이 0.991, 웅의 단견중이 0.803이고, F2세대에서 웅의 견층비율이 0.938, 웅의 fibroin량이 0.930으로서 정의 방향으로 그 효과가 크게 표현되었다. 경로계수에서 견사량에 관여하는 직·간접효과가 세대간과 자웅간에 차이는 있으나 주로 증량적 형질인 단견중, 견층중 등의 영향이 컸을 것으로 평가된다.

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50-60대 저소득층 1인 가구의 자존감에 미치는 영향요인 : 구조방정식모형 분석 (Factors Affecting the Self-Esteem of Single Households from Low-Income Families Aged 50-60 years: Structural Equation Model Analysis)

  • 유영설;이도희;김선예
    • 한국융합학회논문지
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    • 제12권8호
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    • pp.67-75
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    • 2021
  • 본 연구는 50-69세의 저소득 1인 가구를 대상으로 그들의 자존감에 미치는 영향요인을 확인하기 위하여 시행되었다. 분석대상은 보건복지부에서 제공하는 2019년 복지패널자료로부터 50-69세 저소득 1인 가구에 해당하는 233명이었다. 연구방법은 자존감을 종속변수로 하고, 관계만족도와 생활만족도를 독립변수로 정의한 후, 구조방정식 모형을 이용하여 분석하였다. 분석결과, 관계만족도는 경로계수 0.24로 자존감에 직접적으로 영향을 나타내지 않았다. 그러나, 관계만족도는 경로계수 0.71로 생활만족도에 긍정적 영향을 주었고, 생활만족도는 경로계수 0.46으로 자존감에 유의미하게 긍정적 직접영향을 나타내었다. 또한 생활만족도가 관계만족도와 자존감에 경로계수 0.32로 매개효과를 미치고 있는 것으로 나타났다. 그러므로, 열악한 1인 가구를 지원하는 전략을 세울 때, 정책입안자들은 관계만족도와 생활만족도를 개선시키는 방법을 고려해야 할 것이다.

경로분석과 시스템다이내믹스를 이용한 지식기반산업의 동태적 성장에 관한 연구

  • 문태훈
    • 한국시스템다이내믹스학회:학술대회논문집
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    • 한국시스템다이내믹스학회 2000년도 하계학술대회발표논문집
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    • pp.29-45
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    • 2000
  • The purpose of this paper is understanding the dynamics of knowledge based industries in Korea and suggesting policy recommendations for supporting those industries. Following KIETs (1999) definition of knowledge intensity, this paper classified industries in Kyung Ki Province according to several knowledge indicators including R&D activity and human capital content. Having classified industries, this paper investigates growth dynamics of knowledge based industries in Kyung-Ki Province. Based on surveys on some 280 knowledge based industries in Kyung-Ki province, growth path of those industries were identified using path analysis. Using the growth path and coefficient identified by the analysis, system dynamics model was build to simulate dynamics of knowledge based industries in Kyung-Ki province. With the model, further analysis was made to investigate some policy measures that can promote knowledge based industries.

Magnus Rotor 자탄의 초기 방출조건이 분산도에 미치는 영향에 대한 정량적 분석 (Quantitative Analysis of Initial Dispersion Condition Effects on Randomness of Magnus Rotor Bomblet)

  • 배익현
    • 한국시뮬레이션학회논문지
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    • 제28권3호
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    • pp.83-89
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    • 2019
  • 본 연구는 회전 비행체(Magnus rotor)를 탑재한 분산탄두의 분산 균일도에 미치는 요인 분석과 성능지표를 도출하기 위해 모탄의 속도 V와 회전속도 ${\omega}$, 비행경로각(flight path angle) ${\gamma}$ 그리고 고도 h의 변화에 따른 해석 결과를 기술했으며, 이때 모탄의 회전속도와 속도의 비를 새로운 변수로 정의했다. 자탄의 분산 해석에는 풍동실험을 통해 획득한 공력계수를 사용한 6 자유도 운동방정식을 이용했으며, 분산도 분석을 위해 회귀분석과 결정계수를 구해 분산도를 평가했다. 해석결과 최적의 회전속도와 낙하속도의 비, 비행경로각(flight path angle)을 구할 수 있었으며, 방출고도는 분산도에 회전속도와 낙하속도의 비, 비행경로각(flight path angle)의 영향에 비해 영향은 크지 않고, 자탄의 분산반경에 영향이 큰 것을 확인했다.

Performance of Heritabilities, Genetic Correlations and Path Coefficients of Some Agronomic Traits at Different Cultural Environment in Sesame

  • Shim, Kang-Bo;Kang, Chul-Whan;Lee, Sung-Woo;Kim, Dong-Hee;Lee, Bong-Ho
    • 한국작물학회지
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    • 제45권4호
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    • pp.245-250
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    • 2000
  • This study was conducted to analyze the responses of some agronomic traits to the different cultural environments and relations among the agronomic traits for selecting sesame varieties with higher cultural stabilities. The indexes for stability parameters measured were coefficient of variability, heritabilities, genetic correlations and path coefficients of agronomic traits according to locations and years in Korea. The heritabilities of agronomic traits showed different by locations and years. Number of seeds per capsule and 1000 seeds weight showed higher heritabilities, but stem length and seed weight per plant showed relatively lower heritabilities. Average heritabilities of some agronomic traits in 1998 were comparatively higher than those of 1999. Of six areas, Jinju area showed biggest coefficient of yield variability in 1998-1999. Iksan and Taegu areas showed higher heritabilities in 1998, but Iksan and Jinju areas showed lower heritabilities in 1999. Genetic correlations were slightly higher than corresponding phenotypic correlations. Stem length showed positive genetic correlation with the number of capsules per plant, and seed weight per plant and the number of capsule per plant showed positive genetic correlation with seed weight per plant. On the analysis of path coefficients, stem length and number of capsules effected highly on grain yield. Great regional variations were observed on the effects of agronomic traits on grain yield. Higher direct effects of stem length on grain yield were observed at Suwon, Chungwon, Taegu, Jinju and Naju areas, but in Iksan area was observed higher direct effect of the number of capsules per plant on grain yield in 1998. In 1999, higher direct effect of stem length on grain yield was observed at Chungwon and Suwon areas. Iksan and Taegu areas were also observed higher direct effect of the number of capsule per plant on grain yield.

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