• Title, Summary, Keyword: 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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    • v.3 no.4
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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.

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

  • 김광용;김기수
    • Journal of the Korean Society for Quality Management
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    • v.32 no.2
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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.

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

  • Lee, Geau-Chul
    • Journal of architectural history
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    • v.19 no.6
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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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    • v.4 no.2
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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.

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

  • Kwon, Oh-Jung;Lee, Yong-Min;Ha, Hae-Hwa
    • Journal of the Korean housing association
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    • v.21 no.3
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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.

The geophysical survey in shallow water and transitional region

  • Ashida Yuzuru
    • 한국지구물리탐사학회:학술대회논문집
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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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Utilization of IT Survey Method in the National Statistics Survey (국가통계조사에서의 IT조사방법 활용에 대한 연구)

  • Shim, Kyu-Ho;Lee, Eui-Kyoo
    • Survey Research
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    • v.10 no.2
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    • pp.137-161
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    • 2009
  • Survey environment has recently been changed along with its bad conditions. Surveyors feel difficult to meet respondents because the number of one person-household and working-together-household has rapidly increased. With a growing awareness of protecting personal information, respondents no longer want to response to a questionnaire. To get responses form an increasing number of non-response houses and respondents who are difficult to meet, Korea National Statistical Office(KNSO) has changed its survey methods and thus introduced new survey methods, free from face-to-face interviews. A telephone interview has officially been allowed for some reasonable situations and it shows a tendency that the trend of interviewing method is moving toward Internet survey. This paper focuses on how survey methods should be changed with the use of IT in response to changes in the survey environment. Survey methods combined with IT have many excellent advantages, Korea has been an enviable World IT contest for a long time. If Korea can apply such an advanced IT environment to survey methods successfully, it will make a great contribution toward improving the survey quality. This paper also reviews which survey method is most appropriate for National Statistics as the survey environment has changed.

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

  • 조동기
    • Survey Research
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    • v.1 no.1
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    • pp.73-108
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    • 2000
  • This study investigates methodological implications of cyberspace and information technology for online survey research Online survey method provides useful methodological tools for collecting empirical data for the study of cyberspace, In terms of sampling frame , selection method, and questionnaire from four major types of the online survey research can be found: member survey visitor survey e-mail survey and the electronic survey. Online survey research with sample design(population specification error. sampling frame error, selection error) measurement (measurement instrument bias system-related processing error, nonrespone, and response bias) and research ethics (privacy and netiquette) pose important methodological issues for the survey. The realization of the technological possibilities of online survey will be possible only through a right consideration of these issues.

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

  • 오창수
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.15 no.1
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    • pp.107-116
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    • 1997
  • This study is concerned about the comparison of accuracy between the plane table survey and the transit survey in the boundary survey. Up to the present, the plane table survey is used for the boundary survey in Korea the plane table survey usually causes both human and mechanical observational errors large enough. In this study, both the plane table survey and the transit survey using total station were used and the same points were measured from the same station. As the results, the positional error has 2~20 cm in plan table survey and 0~2 cm in the transit survey. Thus the transit survey is considerably accurate compared to the plane table survey in the boundary survey.

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

  • Ahn, Hyun Tae;Moon, Ki Hoon;Kim, Jeong Tai
    • KIEAE Journal
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    • v.7 no.2
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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.