• Journal of the Korean Statistical Society
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• 제31권4호
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• pp.469-482
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• 2002

This paper suggests a new method of compensating for wave nonresponse in panel survey, which combines weighting adjustment and imputation. By deleting less frequent nonresponse patterns, we can get simplicity. A new mean estimator under the new combining method is provided and a limited simulation study employing a real data is conducted.

• 토지주택연구
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• 제13권1호
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• pp.85-98
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• 2022

통행을 포착할 수 있는 자료가 양적으로 방대해지며 가구통행실태조사와 같은 전통적 교통조사에 대한 무용론이 제기되고 있다. 그러나 통행의 목적과 수단을 파악할 수 있는 등 가구통행실태조사는 그 중요성이 여전하다. 이에 본 연구는 국내외 교통조사 사례 및 관련 문헌을 검토하여 가구통행실태조사의 현황을 파악하고 개선방안을 논의한다. 본 연구는 가구통행실태조사가 직면한 한계점 중 긴 조사주기, 짧은 조사기간, 유효표출률의 감소, 의무통행 중심의 문항 구성에 대해 다룬다. 이에 대한 개선방안으로 조사주기 단축, 연중조사 시행, 주중조사와 주말조사의 병행 시행, 주말통행 관련 항목 세분화 등을 제안한다. 본 연구는 교통분야 외에 관광, 보건, 사회 등의 분야에서도 응용할 수 있도록 확장성을 감안하며, 제약된 예산 하에서 현실적인 개선방안을 고려한다는 데에 의의가 있다.

• 농업교육과 인적자원개발
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• 제49권4호
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• pp.43-65
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• 2017

이 연구의 목적은 특성화고·마이스터고 졸업자 취업실태조사의 문제점을 파악하고 개선과제를 도출하는데 있다. 이를 위해 특성화고·마이스터고에서 학생들의 취업업무를 총괄하는 19명의 취업부장교사와 취업 개념의 타당성, 조사시기의 적절성, 조사방법의 효과성, 조사 산출물의 유용성 등을 중심으로 면대면 심층인터뷰를 실시하였다. 주요 연구결과는 다음과 같았다. 첫째, 현재의 취업실태조사에서 활용하고 있는 취업의 개념은 통상적인 기준으로 인정하기에 낮았으며, DB와 연계되지 않은 취업집계는 부정확할 가능성이 있는 것으로 나타났다. 둘째, 취업시기와 관련하여 현행 2월 조사는 현장학습과 취업을 구분하기 어렵고, 진학 및 취업이 결정되지 않은 시기이며 완전한 취업을 조사하는데 한계가 있었다. 셋째, 현재 교사가 수행하는 조사방법은 신뢰도와 업무효율에 있어서 한계가 있었다. 넷째, 조사산출물은 학교에서는 활용하기에 유용하지 않은 것으로 나타났다. 이러한 연구 결과를 바탕으로 특성화고·마이스터고 취업실태조사의 개선을 위한 시사점을 제시하였다.

• 품질경영학회지
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• 제42권3호
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• pp.339-360
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• 2014

Purpose: The objective of this paper was to analyze the requirements of the end-users by class after carrying out a survey on the user requirements for sleeping bags and utilize the result for effective product development. Methods: The test for difference in means by class was conducted through one sample analysis and one-way ANOVA after the survey result has gone through a reliability verification, and an LSD (Least Significant Difference) test was conducted as a post-mortem method. Results: A significant result was derived from the survey on the user requirements for sleeping bags by method of use, use of combination of sleeping bag components or a sleeping bag alone. Conclusion: The significant result derived from the survey of this paper on the user requirements for sleeping bags can be utilized for effective development of sleeping bags.

• 기술혁신학회지
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• 제5권2호
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• pp.228-244
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• 2002

The survey of research and development (R&D) in science and technology (S&T) covers the current status of R&D activities in S&T in Korea, and provides a basis for decision making regarding S&T policy. Continuous improvement of the survey is widely needed to present reliable national basic statistics. Therefore, the purpose of the study is two-fold: to introduce sampling survey method in industrial sector and to make statistical technique to deal with non-response data from industrial sector. To these ends, first, case studies of the United States and Japan are illustrated. A new sampling design for the R&D survey is proposed and implementing stratified random sampling scheme is suggested. Moreover, statistical analysis of the non-response data is dealt with. Based on several screening criteria, we develop a new imputation method suitable for the R&D survey and also provide more detailed implementation plan. Various solutions to a problem arising from non-response item are also presented. Finally, some implications of the results are discussed.

• 산업기술연구
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• 제27권B호
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• pp.115-119
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• 2007

Currently, geophysical method is applied for understanding the subsurface geologic structure economically and systematically, but there exists some limitations on recognizing complex subsurface structures precisely by a single geophysical method. In order to understand the complex subsurface structures, we applied various geophysical methods including seismic refraction survey, two-dimensional resistivity survey, seismic tomography survey, suspension-ps log, and understood distribution of low velocity, low resistivity range of resistivity survey and correlation of an intersecting point, velocity distribution of seismic tomography survey.

• 한국유기농업학회지
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• 제11권1호
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• pp.39-53
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• 2003

This study attempted to estimating economic value of environmental resource by using the contingent valuation method(CVM), known as one of the tool measuring the economic benefits. To analysis the preservation value of Bong-seo Mt.. the surveys were conducted for citizens resident in Cheonan city. The sample sizes of the survey were 200 respectively. The survey method adopted face-to-face interview method as a mean of correcting useful response. This study considers models for evaluating the willingness to pay(WTP) based on payment card contingent valuation survey data and has attempted to measure goodness of fit for the data obtained from the survey design. It was estimated that the average WTP of Cheonan citizens for a maintenance and management of Bong-seo Mt. was 5,010 won per month and 60 ,118 won per year. When it is translated by total number of households in Cheonan city, there is the preservation value of approximately 8.8 billion won per year. On the other hand, total expense of development increased about 1.7 times over including application of the preservation value.

• 한국의류학회지
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• 제20권5호
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• pp.893-904
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• 1996

The main purpose of this research was to examine the purchase and use behavior of consumers related to washing machines in order to develope strategies to increase competitiveness of washing machines manufactured in Korea. Purchase and use behavior related to washing machines were examined by survey method and detailed information on washing conditions and usage of washing machines were obtained by diary method. 398 questionnaires were analyzed in the survey and 35 housewives participated in keeping the records of their washings for 30 days. The results of the survey showed that price and a tangle of clothes were the most determinant factors for purchase of washing machines and the knowledge related to washing was relatively low The diary method revealed that washing loads and frequencies of washing increase with the household size, and functions of washing machines except water level are infrequently used. Comparisons between the survey and diary results indicated that consistency between the two methods depends on the types of questions.

• 한국조사연구학회지:조사연구
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• 제10권3호
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• pp.21-36
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• 2009

본 연구에서는 선거여론조사에서 좀더 많은 젊은 유권자를 접촉하기 위해서 인터넷조사의 적용 가능성을 제시하고자 한다. 2007년 대선여론조사에서 수집한 인구통계학 변수와 공변량 변수를 이용하여 성향점수모형을 추정하였다. 인터넷조사에서 투표성향을 전화조사의 것과 같이 보정하기 위해서 추정한 성향점수모형을 사용하였다. 실제로 인터넷조사 데이터에 성향점수 가중치를 적용함으로써 전화조사의 추정치에 근접하게 됨을 보였다. 성향가중모형을 인터넷조사의 데이터에 적용하여 인터넷조사데이터만으로 전화조사와 유사한 추정치를 얻을 수 있음을 예시함으로써 선거여론조사에서 전화조사의 대안적인 조사방법으로 인터넷조사의 활용가능성을 실제 조사데이터로 입증하였다는 데 그 의의가 있다.

• 농촌계획
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• 제14권3호
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• pp.53-61
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• 2008

This study has intended to elicit the definition of rural landscape, to classify rural landscape type, and to develop the evaluation indicators of rural landscape, meeting the definition through delphi expert survey method. The survey was performed five times for 80 days by 20 experts. The delphi expert survey asked experts as follows: 1) to fill out open-ended questions regarding the definition of rural landscape, and classification of rural landscape types, and evaluation indicators; 2) to provide their own feasibility evaluation regarding the results of the previous answer; and 3) to reevaluate the feasibility of the definition, types, and indicators. Based on the survey results, this study has found the appropriate definition of rural landscape like the comprehensive complex of physical (objective) and nonphysical (subjective) factors characterizing natural and/or artificial scenary of rural village itself Also, this study has developed the evaluation indicators of rural landscape in accordance with space types and landscape units classified. The developed indicators included areal ratio, the degree of green naturality, the building coverage ratio for physical landscape field, and skyline, landscape adjectives, color landscape, semantic scale.