• 제목/요약/키워드: SURVEY

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Is Simple Random Sampling Better than Quota Sampling? An Analysis Based on the Sampling Methods of Three Surveys in South Korea

  • Cho, Sung Kyum;Jang, Deok-Hyun;LoCascio, Sarah Prusoff
    • Asian Journal for Public Opinion Research
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    • 제3권4호
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    • pp.156-175
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    • 2016
  • This paper considers whether random sampling always produces more accurate survey results in the case of South Korea. We compare information from the 2010 census to the demographic variables of three public opinion surveys from South Korea: Gallup Korea's Omnibus Survey (Survey A) is conducted every two months by Gallup Korea; the annual Social Survey (Survey B) is conducted by Statistics Korea (KOSTAT); the Korean General Social Survey (KGSS or Survey C) is conducted annually by the Survey Research Center (SRC) at Sungkyunkwan University (SKKU). Survey A uses quota sampling after randomly selecting the neighborhood and initial addresses; Survey B uses random sampling, but allows replacements in some situations; Survey C uses simple random sampling. Data from more than one year was used for each survey. Our analysis suggests that Survey B is the most representative in most respects, and, in some respects, Survey A may be more representative than Survey C. Data from Survey C was the least stable in terms of representativeness by geographical area and age. Single-person households were underrepresented in both Surveys A and C, but the problem was more severe in Survey A. Four-person households and married persons were both over-represented in Survey A. Less educated people were under-represented in both Survey A and Survey C. There were differences in income level between Survey A and Survey C, but income data was not available for Survey B or the census, so it is difficult to ascertain which survey was more representative in this case.

인터넷 설문조사의 방법론적인 문제점과 데이터마이닝 기법을 활용한 개인화된 인터넷설문조사 시스템의 구축 (Methodological Issues in Internet Survey and Development of Personalized Internet Survey System Using Data Mining Techniques)

  • 김광용;김기수
    • 품질경영학회지
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    • 제32권2호
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    • pp.93-108
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    • 2004
  • The purpose of this research is to summarize the methodological issues in internet survey and to suggest personalized internet survey system using data mining technique for enhancing the survey quality of internet survey as well as utilizing the benefit of interactive multimedia factors of internet survey. The data mining technique used in this paper is Case Based Reasoning for adopting individual design preference affecting survey quality. For achieving the research purpose, two surveys, pre & post survey, were performed. Pre survey was done for implementing CBR database to find individual index affecting survey quality and post survey was used for measuring the peformance of personalized internet survey system. The result shows that the survey quality of personalized web survey system is better than generalized web survey system.

대한제국기 근대적 측량의 도입과 측량도면의 성격 (The Development of Modern Survey and the Characteristics of Survey Drawings in Early Modern Korea)

  • 이규철
    • 건축역사연구
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    • 제19권6호
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    • pp.187-208
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    • 2010
  • The purpose of this study is to understand the transition process of Korean architecture and urbanism from traditional state to modern state, by investigating the development of modern survey and the characteristics of survey drawings during the Great Han Empire (大韓帝國), the early modern Korea. The governmental efforts of the Great Han Empire to introduce a modern survey system named Gwangmu Land survey (光武量田事業) ended in failure. After the Russo-Japanese War (露日戰爭, 1904-1905), the Residency-General (統監府) held the hegemony of Korean Peninsula. It reintroduced a modern survey system for the survey of land and buildings all over the country and enforced the Land and Buildings Certification System (土地家屋證明制度). Since then, the land and buildings survey was propagated rapidly and the modern system for land use was gradually organized. With the progress of modern survey, the survey bureau of Cabinet (內閣) and Department of Royal Household (宮內府) created survey drawings that had some characteristics of colonialism. Takjibu (度支部) produced cadastral maps of major cities, with which the modern land system was developed. In addition, the Royal Property Bureau (帝室財産整理局) produced survey drawings of land and buildings owned by the Royal Household which were finally converted into modern facilities.

Testing the Representativeness of a Multimode Survey in South Korea: Results from KAMOS

  • Cho, Sung Kyum;LoCascio, Sarah Prusoff;Lee, Kay-O;Jang, Deok-Hyun;Lee, Jong Min
    • Asian Journal for Public Opinion Research
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    • 제4권2호
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    • pp.73-87
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    • 2017
  • The Korean Academic Multimode Open Survey (KAMOS) is a national survey first conducted in 2016. Stratified cluster random sampling was used in an initial face-to-face survey during which panel members were recruited. The second survey allowed invited panel members to answer online or by phone. KAMOS includes both longitudinal items and omnibus items, i.e., researchers can propose questions to include on KAMOS. This paper seeks to establish that KAMOS is representative of the South Korean adult population. The demographic variables from the first survey were comparable to demographic variables from two well-respected surveys in South Korea: the KOSTAT Social Survey and the Gallup Korea Omnibus Survey. To ensure that there was no substantial difference between those who answered the first survey and those who answered the second survey, we compared the results of 22 items from the first survey. The 2,000 panel members who were invited to participate in the second survey had similar responses to the 1,008 of those who responded to the second survey. Based on our findings, KAMOS can be considered a representative sample.

The geophysical survey in shallow water and transitional region

  • Ashida Yuzuru
    • 한국지구물리탐사학회:학술대회논문집
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    • 한국지구물리탐사학회 2002년도 정기총회 및 제4회 특별심포지움
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    • pp.1-15
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    • 2002
  • In the present paper, the marine reflection seismic survey, the survey using Chirp sonar, the detail topographic survey by narrow multi-beam sounding machine, the sea bottom geological condition survey by side-scan sonar, the sea bottom sampling by core sampler and the positioning by DGPS as the geophysical survey in shallow and transitional region are introduced by placing emphasis on hardware configuration.

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노인 거주자의 유비쿼터스 홈 서비스 요구도 조사를 위한 방법론 연구 - 종이기반 조사와 웹기반조사의 효용성 검증을 중심으로- (A Study on the Survey Methods of Needs for Ubiquitous Home Services by Elderly Residents - Focused on Examining the Effectiveness of PBS and WBS -)

  • 권오정;이용민;하해화
    • 한국주거학회논문집
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    • 제21권3호
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    • pp.105-114
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    • 2010
  • Recently, Web-based Survey has attempted to overcome the limitations of Paper-based survey. This method is more effective in costs and time use than traditional methods, also help respondents to understand and interest in the survey. Especially for the elderly, web-based survey is effective survey tool, because audio-visual material could be provied. The purpose of this study is to evaluate the effectiveness of two kinds of methods which were web-based survey and paper-based survey, focused on elderly residents' needs for ubiquitous home service. The participants were older than 60 and divided into 2 groups, web-based survey and paper-based survey, each group was controlled over by age, gender, computer skill. For this study, elderly residents conducted a survey passed through 2 steps, the first was residents' needs for ubiquitous home services, the second was an evaluation of survey methods. Finding were as follows : first, there was no difference between the two groups in needs for ubiquitous home service, so survey itself can not make a difference in survey results. Second, respondents of web-based survey were more interested in and felt easier about method that they conducted than ones of paper-based survey. Finally, Web-based survey will be more effective method to be figure out the need of the elderly who are familiar with computer.

국가통계조사에서의 IT조사방법 활용에 대한 연구 (Utilization of IT Survey Method in the National Statistics Survey)

  • 심규호;이의규
    • 한국조사연구학회지:조사연구
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    • 제10권2호
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    • pp.137-161
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    • 2009
  • 최근의 조사환경은 많이 악화되는 추세이다. 일인 가구와 맞벌이 가구가 증가하면서 조사원이 조사가구를 방문했을 때 응답자를 만나기는 쉽지 않다. 개인의 비밀보호에 대한 인식의 변화도 통계조사에 쉽게 응답하지 않는 원인이 되고 있다. 조사에 불응하거나 만나기 어려운 응답자들을 대상으로 조사를 실시하기 위하여 통계청에서는 기존의 면접조사 틀에서 벗어난 여러 조사방법을 모색하고 있다. 공식적으로 면접조사를 실시하고 있는 조사에서 일부는 전화조사를 허용하고 있으며, 인터넷조사로 전환하기 위한 연구도 많이 하고 있는 실정이다. IT기술을 접목한 조사방법에는 많은 장점이 있고 우리나라는 이미 세계적인 IT기술 강국이다. 이러한 우리나라의 IT환경을 조사방법에 잘 적용할 수 있다면 조사품질의 향상에 많은 기여를 할 것으로 보인다. 본 연구에서는 IT기술을 이용한 조사방법을 중심으로 조사환경의 변화에 부응하는 적절한 국가통계 조사방법을 제시하고자 한다.

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경계측량의 정확도비교에 관한 연구 (A Study on Comparison of Accuracy Degree in Boundary Survey)

  • 오창수
    • 한국측량학회지
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    • 제15권1호
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    • pp.107-116
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    • 1997
  • 본 연구는 경계측량에서 평판측량과 트랜싯측량의 정확도 비교에 관한 연구이다. 현재 우리나라의 경계 측량에서 주로 사용하고 있는 평판측량은 인위적, 기계적 위치오차가 발생되어 민원의 여지가 있다 연구의 실행을 위하여 대상지역과 측점 및 측정점이 같은 곳에 위치하도록 실습장을 설치하고 토탈스테이션을 이용한 트랜싯측량과 평판측량으로 동일한 조건에서 측량하였다. 그 결과 평판측량에서 $\pm2~\pm20cm$, 트랜싯측량에서 $\pm0~\pm2cm$, 의 위치 오차가 발생되었다. 이와 같이 평판측량보다 트랜싯측량으로 경계측량을 실시하는 것이 훨씬 더 정확하다는 것을 알 수 있었다.

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사이버공간과 사회조사:온라인 사회조사의 쟁점과 과제 (Cyberspace and survey research: The methodological implications and issues of online survey research)

  • 조동기
    • 한국조사연구학회지:조사연구
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    • 제1권1호
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    • pp.73-108
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    • 2000
  • 사이버공간이 독특한 사회적 공간으로 자리잡고 이에 대한 경험적 자료의 필요성이 중대됨에 따라 컴퓨터 통신망을 이용한 사회조사가 늘어나고 있다. 본 연구는 사이버공간이 보여주는 기술적 기능성을 방법론적으로 검토해 봄으로써 온라인 사회조사의 발전가능성을 탐색하고 있다. 온라인 사회조사는 표집틀, 응답자 접촉방식, 질문지 형태 등에 따라 회원 조사, 방문자조사, 전자우편조사, 전자설문조사로 구분될 수 있으며 기존의 조사방법에 비하여 조사비용의 저렴하고 조사의 실행이 용이하다는 특징을 가지고 있다. 그러나 체계적 오차와 관련하여 온라인 사회조사는 표본설계(모집단의 규정, 표집틀 오차, 추출오차), 측정(측정도구의 구성, 시스템의 안정성과 충실성, 비 응답 및 응답오차) 조사윤리의 측면에서 많은 과제를 안고 있다. 이러한 방법론적인 쟁점에 대한 충분한 고려가 이루어질 때 온라인 사회조사는 본격적인 조사연구의 한 방법으로 자리잡을 수 있을 것이다.

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야경의 주관적 이미지에 관한 현지평가와 슬라이드평가의 비교분석 (A Comparative Analysis of Field and Slide Survey on Subjective Image of the Nightscape)

  • 안현태;문기훈;김정태
    • KIEAE Journal
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    • 제7권2호
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    • pp.31-37
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    • 2007
  • Despite of many supportive research to the usefulness of slide evaluation on environment of outdoor lighting, study method of using slides have provoked many discussions of its manifestation of reality of field conditions. This study aims to compare the results of slide survey with that of field survey. Distant view and short range view of nightscape of Seoul were selected. Field measurement of luminance and chromaticity were conducted and questionnaire survey were conducted. Frequency analysis, T-test, factor analysis were conducted. Results shows that distant view and short range view of field survey have better visual atmosphere than slide survey. In addition, slide survey on distant view shows lowest values. Difference between field survey and slide survey on distant view is much bigger than the results of short range view.