• Journal of Preventive Medicine and Public Health
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• 제21권2호
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• pp.431-441
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• 1988

The purpose of this study was to compare the difference of two survey methods for health services research. Data were collected by means of two types of household survey conducted from March 11 to September 19, 1985. A probability sample of 30,613 persons was taken from 180 Enumerated Districts designated by the Economic Planning Board. The sample was divided into two groups systematically. One group was surveyed by the self-administered questionnaire and the other group was interviewed. Response rates were 81.4% and 90.6% respectively. The data were analysed by the ratio of the results of the self-administered survey to those of the interview survey. No difference was observed in sex, age, residence, or occupation between the two groups. However the respondents' characteristics were statistically different between the two groups. The major findings of this study are as follows : 1. The morbidity rate was 142.5 per 1,000 persons during the two week period by the self-administered questionnaire survey and 74.3 per 1,000 persons with the interview survey method. The ratio of the morbidity rate by the self-administered questionnaire to that by the interview was 1.92, and the difference between the two rates were due to the personal characteristics. 2. The out-patient utilization rate was 10.2 visits per person per year by the self-administered questionnaire survey and 5.4 by the interview survey, and the ratio was 1.89; the admission rate was 3.2 times per 100 persons per year by the self-administered questionnaire survey and 1.9 times by the interview survey, and the ratio was 1.68. Differences due to the sociodemographic characteristics were greater in the out-patient utilization rates than in the adimssion rates. 3. Percentages of effective medical care demand were 90.2% in the self-administered survey and 92.3% in the interview survey; the ratio was 0.98 which was less than that of the morbidity rate and medical care utilization. But, differences of effective medical care demand occurred in persons with no occupation, and aged or low educated respondents. 4. Respiratory illness had the highest frequency in the two survey methods. But there was a slight difference between the two survey methods in morbidity composition. 5. It was concluded that data collected by the interview survey were inclined to be underestimated and this problem can be corrected by a modified self-administered survey.

• 한국조사연구학회:학술대회논문집
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• 한국조사연구학회 2006년도 추계학술대회 발표논문집
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• pp.279-304
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• 2006

• 지질공학
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• 제17권1호
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• pp.49-55
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• 2007

전기비저항 탐사에 있어서 지하에 분포하는 이상대를 정확하게 파악하기 위하여 다양한 배열 방법들이 요구되어 진다. 탐사 방법들은 험난한 산악지형에서 지형기복에 따른 장비와 인력의 이동에 대한 불편함을 줄이기 위하여 일정한 고도에서의 곡선적 측선에 대한 탐사, 시추공이 경사 곡선 수평적으로 되어 있을 경우 지표의 임의적 위치에서의 탐사, 여러 개의 전류원에 대하여 임의 위치에서 포텐셜을 측정하는 탐사 등으로 분류된다. 본 연구는 이러한 다양한 배열 방법으로 얻어진 복합적 자료들에 대하여 3차원 역산 방법을 사용하여 보다 신속하고 정확한 영상들로 나타내고자 한다. 또한 단층지역에서 곡선적 배열 방법으로 얻어진 측정 자료에 대한 3차원 역산 결과로부터 단층의 경사, 방향 및 폭 등에 관하여 정확한 전기비저항 영상들의 비교 결과도를 제시하였다.

• 지적과 국토정보
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• 제45권1호
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• pp.181-191
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• 2015

본 연구에서는 2013년 의왕시 지적재조사사업 수행과 관련하여 지적재조사 사업의 측량 방법중 GPS-RTK(Network, Single)측량과 토탈스테이션(T/S)측량의 성과 정확도 및 소요시간 등을 비교분석함으로써 주택밀집 지역의 도시지역 지적재조사 사업지구에서의 효율적인 측량 방안을 제시하고자 하였다. 본 연구에서는 이러한 의왕시 지적재조사 측량 분석결과를 종합적으로 평가한 결과 건물이 밀집되어 있는 도시지역에서의 지적재조사 측량 방법은 GPS-RTK측량 방법을 지양하고 토탈스테이션에 의한 측량 방법을 제1원칙으로 정하고 GPS -RTK측량을 보조측량 및 검사 방법 등에 활용하는 것이 타당하다는 결론을 도출하였다.

• 신재생에너지
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• 제7권3호
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• pp.36-45
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• 2011

Prediction of demand for workforce in new and renewable energy is precondition for sustainable growth of an industry. The purpose of this research is to review prediction methods and case studies of workforce in new and renewable energy industry. This research compares the three methods in the focused on possibility of applying in renewable energy industry; survey, input-output and labor function estimation methods. Also, three cases are reviewed in the focused on applied method; Korea, America and Australia. As a result, the survey method was wildly used in the new and renewable industry. Also the improvement rates of work force are difference depending on the methodology. This result can be applied to set up the policy of human resource development of renewable energy.

• 한국식품영양과학회지
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• 제21권5호
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• pp.502-508
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• 1992

국민영양조사가 실시된 1969년부터 최근 조사보고서가 나온 1989년까지의 대상지역, 규모, 조사내용 등을 중심으로 한 조사방법면에서의 연도별 변화 차이를 비교 고찰해보았다. 국민영양조사의 주관부서는 보사부내에서 조직이 바뀜에 따라 방역국 보건과, 의정국 지방의정과, 보건국 식품위생과를 거쳐 모자보건관리관실에서 담당하다가 1981년부터는 보건국 보건교육과에서 담당하고 있다. 조사내용은 식품 섭취조사, 식생활조사, 건강조사로 나누어 실시하고 있으며 이중 건강조사항목이 많이 바뀌어 오히려 줄어들었고, 표본추출방법은 2회의 개편을 거쳐 1987년 이후로는 확률비례추출법으로 실시되고 있다. 조사지구수와 가구수의 연도별 변화는 초창기 1974년까지는 지구수와 가구수가 적었으며, 1988년부터는 2,000세대를 조사하고 있다. 인원수는 역시 초창기 74년까지와 그 이후 74, 83, 88년으로 가면서 변화하였으며, 88년부터는 8,000명 정도가 된다. 조사시기는 여름과 가을이 대부분이나 78년 이전은 주로 여름에, 그 이후는 가을에 조사하고 있다. 이상의 결과 내용으로 보면 영양조사는 시기별로 변해왔으며, 그 결과의 비교분석시 세심한 주의가 요구된다.

• 한국의료질향상학회지
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• 제21권1호
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• pp.80-95
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• 2015

Objectives : A safety culture is the bedrock for all patient safety improvement initiatives; thus, many resources have been invested in measuring hospital culture. However, many of these endeavors have failed to yield meaningful results. This article proposes a practical checklist to ensure successful administration of a safety culture survey and describes current methodologies for analyzing survey results to develop safety improvement programs. Methods : We reviewed currently used safety culture surveys and summarized their strengths and weaknesses. We also reviewed studies using safety culture surveys and found several pitfalls leading to failure in survey administration. With this information, we developed a checklist that covers critical items in the survey process. We also reviewed newly developed methodologies for survey results analysis and application and described them using the Korean version of the Safety Attitudes Questionnaire as an example. Results : The checklist consists of three steps: survey preparation, administration, and analysis and application. Each step contains clear action items. The content even describes how to get buy-in from hospital executives and manage communication channels with them. Also, common misunderstandings regarding survey scores are described and possible solutions are suggested. In the analysis section, we demonstrate new methods for obtaining more accurate survey results and how to utilize these methods to develop and implement hospital-wide safety improvement programs. Conclusion : A successful safety culture survey is the foundation of all future safety improvement projects. This review is intended to guide hospitals in enhancing safety.

• Communications for Statistical Applications and Methods
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• 제10권2호
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• pp.553-566
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• 2003

In many cases, the measurement error variances may be functions of the unknown true values or related covariates. This paper considers design-based estimators of the parameters of these variance functions based on the within-unit sample variances. This paper devotes to: (1) define an error scale factor $\delta$; (2) develop estimators of the parameters of the linear measurement error variance function of the true values under large-sample and small-error conditions; (3) use propensity methods to adjust survey weights to account for possible selection effects at the replicate level. The proposed methods are applied to medical examination data from the U.S. Third National Health and Nutrition Examination Survey (NHANES III).

• 지구물리
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• 제6권2호
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• pp.89-97
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• 2003

For safety evaluation of a rockfill dam, it is often necessary to investigate spatial distribution and dynamic characterization of weak zones such as fractures. For this purpose, both seismic and electric methods are adopted together in this research. The former employs the multichannel analysis of surface waves (MASW) method, and aims at the mapping of 2-D shear-wave velocity (Vs) profile along the dam axis that can be associated with dynamic properties of filled materials. The latter is carried out by DC- resistivity survey with a main purpose of mapping of spatial variations of physical properties of dam materials. Results from both methods are compared in their signature of anomalous zones. In addition, downhole seismic survey was carried out at three points within the seismic survey lines and results by downhole seismic survey are compared with the MASW results. We conclude that the MASW is an efficient method for dynamic characterization of dam-filling materials, and also that joint analyses of these two seemingly unrelated methods can lead to an effective safety evaluation of rock-fill dam.

• Communications for Statistical Applications and Methods
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• 제9권3호
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• pp.853-864
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• 2002

In the analysis of categorical data subject to misclassification errors, the observed cell proportions are adjusted by a misclassification probabilities and estimates of variances are adjusted accordingly. In this case, it is important to determine the extent to which misclassification probabilities are homogeneous within a population. This paper considers methods to evaluate the power of chi-squared tests for homogeneity with complex survey data subject to misclassification errors. Two cases are considered: adjustment with homogeneous misclassification probabilities; adjustment with heterogeneous misclassification probabilities. To estimate misclassification probabilities, logistic regression method is considered.