• Title/Summary/Keyword: Stratified Sampling

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Investigating the Relationship between Leadership Skills and Organizational Commitment of Community Youth (지역사회 청소년의 리더쉽기술과 조직몰입 관계분석)

  • Lee, Chae-Shik;Park, Eun-Shik
    • Journal of Korean Society of Rural Planning
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    • v.12 no.1 s.30
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    • pp.49-58
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    • 2006
  • Rearing community youth has been main factors of sustainable agriculture and rural community. The purposes of this study were to analyze the leadership skill and organizational commitment of community youth and to investigate the relationship between leadership skill and organizational commitment. The data were collected from 196 rural youth by stratified random sampling. The study was adopted t-test, ANOVA factor analysis and correlation analysis. The major findings of this study were as follows; First, community youth married, wealthier, and expanded farming area were more likely to have leadership life skills than others. Second, community youth wealthier and expanded farming area were more likely to have organizational commitment than others. Third, group activity, being leader, teaming skill, communication self understanding, decision making, language skill among leadership skills have positively correlated with organizational commitment.

A Study on Use of Environment-Friendly Agricultural Products and Agricultural Safety Consciousness of Consumers (소비자의 환경친화적 농산물 이용과 안전 의식에 관한 연구)

  • Ko, Jung-Sook;Lee, Chae-Shik
    • Hwankyungkyoyuk
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    • v.20 no.4
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    • pp.117-131
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    • 2007
  • The objectives of this study were to investigate using environment-friendly agricultural products and to analyze consciousness of agricultural safety of consumers. The data were collected from 1,000 consumers by two-staged stratified random sampling. SPSSWIN/ver. 13 program was used for analyzing data with frequency, cross-tab, t-test and ANOVA. The major findings of this study were as follows: 1) Consumers with higher academic career, more income, and white collars showed higher experiences on environment-friendly agricultural products. 2) Consumers who are under thirties, university graduation and upper income revealed high intention to use environment-friendly agricultural products. 3) The study revealed information needs and information acquisition are significantly different among consumers 4) Consumers with higher academic and upper income showed higher agricultural safety concern, 5) The study discovered that consumers who are over sixties and under middle school graduation were higher on agricultural safety effects.

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Power Analysis for Tests Adjusted for Measurement Error

  • Heo, Sun-Yeong;Eltinge, John L.
    • 한국데이터정보과학회:학술대회논문집
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    • 2003.05a
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    • pp.1-14
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    • 2003
  • In man cases, the measurement error variances may be functions of the unknown true values or related covariate. In some cases, the measurement error variances increase in proportion to the value of predictor. This paper develops estimators of the parameters of a linear measurement error variance function under stratified multistage random sampling design and additional conditions. Also, this paper evaluates and compares the power of an asymptotically unbiased test with that of an asymptotically biased test. The proposed method are applied to blood sample measurements from the U.S. Third National Health and Nutrition Examination Survey(NHANES III)

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Present and preferred design characteristics of major interior furnishings in the Gamsil apartment area of Gangdong-Ku -on the focus of sofa and tea table, curtain, and carpet- (아파트 실내장식물 디자인 특성의 실태 및 선호에 관한 연구 I - 강동구 잠실지역 아파트를 중심으로 -)

  • 이연숙
    • Journal of the Korean Home Economics Association
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    • v.23 no.4
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    • pp.123-141
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    • 1985
  • The purposes of this study were 1)to examine the present and the preferred design characteristics of major interior furnishings in the Gamsil apartment area of Gangdong-Ku and to investigate the relationship between those characteristics and residents' socioeconomic and their physical housing characteristics, 2) to determine the past and the future factor structures for attributes of the major furnishing, and , 3) to examine the change between the degree of the past and the future consideration on each of the attributes. The data for the study were collected using self-administered questionnaire. Households in Gamsil apartment area of Gangdong-Ku were the population. A proportional stratified systematic random sampling was employed. 480 questionnaires were distributed and 258 were collected. Among them, SAS package. The staticstics used were frequency, percentage, χ\sup 2\-test, factor analysis, and paired t-test.

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A Study on Characteristics and Leadership Performance of Rural Leaders (농촌리더의 특성 및 리더십역할수행 분석)

  • Park, Eun-Shik;Lee, Chae-Shik;Ko, Jeong-Sook;Hwang, Dae-Yong
    • Journal of Agricultural Extension & Community Development
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    • v.12 no.1
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    • pp.1-15
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    • 2005
  • The objectives of this study were to analyze characteristics and role performances of rural leaders and to verify leadership difficulties in organizing rural society. The data were collected from 273 rural leaders selected by stratified random sampling, and the SPSSWIN 10 was used for analyzing data. The major findings of this study were as follows; 1) Leadership role performances of rural leaders were higher than the average scores of non-leaders. 2) Men's leadership role performances were higher than women's except in facilitator role. 3) Leaders in city/county level were more successful in doing leadership performances than community level leaders. 4) Rural leaders were seeking other leaders for discussing problems in leadership. 5) The most difficulties of rural leaders were unconcerns and disinterest of rural people for community development.

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The Effect of Participation on Health Care Patterns in a disease Aged Physical Activities (신체활동이 노인성 질환의 건강관리에 미치는 영향)

  • Kim, Yong-Nan;Ru, Jae-Mon
    • Journal of the Korean Academy of Clinical Electrophysiology
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    • v.2 no.2
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    • pp.51-59
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    • 2004
  • The purpose of this study was to analyze. The effect of participation physical activities on health care patterns in the aged. The subject of the study was selected by multi-stage stratified cluster random sampling among the aged center and aged club to participate program whose age were 65 and over year old among inhabitant the Kwangju metropolitan area. The data were collected through a questionnaire adapted from Payne and Hahn's(1986) 'Understanding Your Health-A personal profile; Evaluating Your Health'. The pilot test was executed after the questionnaire was translated into Korean.

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A Study on the Vocational Competencies of Rural Youths (농촌청소년의 직업능력분석)

  • Lee, Chae-Shik;Park, Eun-Shik
    • Journal of Agricultural Extension & Community Development
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    • v.13 no.2
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    • pp.251-263
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    • 2006
  • The purpose of this study was to analyze vocational competencies of rural youths. The study was carried out by focus group interview and questionnaire. The data were collected from 200 rural youths by stratified random sampling. The SPSSWIN / ver13 was used for analyzing data with t-test, ANOVA, and factor analysis. The major findings of this study were as follows; Firstly, rural youths showed higher competencies in handling and fixing machines, selecting seeds, where as rural youths showed lower competencies in goal setting, envisioning, acquiring agricultural policy information, management evaluation. Secondly, rural youths predicted optimistic future of their own farming even though the future of national farming should get smaller. Lastly, rural youths who are higher education, extending farming size, establishing farm had higher vocational competencies than other youths. Conclusionally, the study suggests adult-farmers give rural youths an opportunity to participate in decision making and farming.

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Analysis for Environmental Consciousness on Conservation Planning Considering the Regional Characteristic -The Case of Daegu City- (지역특성을 고려한 환경보전계획수립을 위한 시민환경의식 분석)

  • Ryu, Ji-Won;Jung, Eung-Ho
    • Journal of Environmental Science International
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    • v.23 no.12
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    • pp.2071-2082
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    • 2014
  • In this study, the environmental consciousness of Daegu citizen on conservation planning considering the regional characteristics was investigated. Data were collected throughout a survey and 1400 people were selected using a stratified sampling method based on populations of Daegu administration district. Results wee followings; First, the levels of environmental consciousness were different dependent on districts' characteristics. Second, poor awareness on Daegu Agenda 21 (Clear and Green Daegu 21) were shown. Daegu Agenda 21 is the action plan for the sustainable environmental conservation activities of the City of Daegu. Third, waste was the most serious environmental problems of Daegu, air quality was second worst, and third was river water quality from the survey, but differentiated awareness was shown dependent on regional spatial factors and pollution emission factors. Last, a public environmental education was the most important issue to make invigorations and progress for future environmental policy.

Surevey on the Attitudes toward Science and Science Courses of Primary and Secondary Students (초.중.고 학생의 과학 및 과학교과서에 대한 태도 조사 연구)

  • Hur, Myung
    • Journal of The Korean Association For Science Education
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    • v.13 no.3
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    • pp.334-340
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    • 1993
  • A survey on the attitudes toward science and science courses was conducted with three hundred students of primary and secondary schools. The instrument used for measuring attitudes was TOSRA(Fraser, 1981). The subjects was sampled by stratified cluster sampling method. The major findings of this study are as follows. 1. The attitude scores has no significant differences among the students of large city, mid-sized city and rural areas. 2. The attitude scores of male and female students has ststistically significant difference. 3. Primary students has significantly higher attitude scores than secondary students. 4. In case of senior high schools, science-major students has significantly higher attitude scores than humanity-major students.

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Bootstrap Variance Estimation for Calibration Estimators in Stratified Sampling (층화 추출에서 보정추정량에 대한 붓스트랩 분산 추정)

  • 염준근;정영미
    • Proceedings of the Korean Association for Survey Research Conference
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    • 2001.11a
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    • pp.77-85
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    • 2001
  • In this paper we study the calibration estimator and its variance estimator for the population total using a bootstrap method according to the levels of an auxiliary information having strong correlation with an interested variable in nonresponse situation. At this point, we find tire calibration estimator in case of auxiliary information for population and sample, and then we drive the bootstrap variance estimator of it. By simulation study we compare the efficiencies with the Taylor and Jackknife variance estimators.

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