• Quality Improvement in Health Care
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• v.30 no.1
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• pp.33-43
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• 2024

Purpose:The acute hospital accreditation program launched in South Korea has shown positive effects on safety culture and quality of care. However, relative weights have not yet been investigated for accreditation criteria with a hierarchical structure. This study aimed to derive the relative weights of acute-care hospital accreditation criteria. Methods: We conducted an online survey using the analytic hierarchy process (AHP) technique to assess the validity, importance, and urgency of acute hospital accreditation criteria. The AHP online survey link was distributed in November 2022 after obtaining informed consent from 10 experts in hospital accreditation. Results: 'Basic value system' ranked highest, while 'patient care system' ranked second in terms of validity, importance, and urgency. 'Performance management system' had the lowest validity and urgency, while 'organizational management system' carried the lowest importance. Within the 'patient care system' domain, 'surgery and anesthesia sedation management' scored highest in validity and importance, and 'patient care' scored highest in urgency. 'Care delivery system and evaluation' received the lowest scores for all three aspects. In the 'organizational management system' domain, infection control ranked highest in terms of validity, importance, and urgency. The lowest validity was observed for 'management and organizational operation' and the lowest importance and urgency were noted for 'human resource management'. Conclusion: The weights for validity, importance, and urgency, as shown in each domain and chapter, and the number of measurable elements included, are largely inconsistent. This study will contribute to the development of the structure and scientific improvement of accreditation standards.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.17 no.30
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• pp.1-9
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• 1994

In this study the recent papers and articles related to facility layout are reviewed to identify the factors to be considered on the development of block layouts. The factors found on the articles are used in the questionnaire to find out the desired closeness ratings for them in machinery plants. The weights found at the survey are used on the development of layouts using CORELAP with examples as a demonstration purpose.

• Proceedings of the Korean Association for Survey Research Conference
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• 2003.06a
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• pp.34-41
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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 develops estimators of the parameters of a linear measurement error variance function based on wi thin-unit sample variaoces. This paper devotes to: (1) define measurement error scale factor $\delta$: (2) develop estimators of the parameters of the 1inear measurement error variance function under stratified multistage sampling design 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)

• The Korean Journal of Applied Statistics
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• v.21 no.3
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• pp.413-427
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• 2008

In sample design, it is usually planned by purpose and the range of the announcing statistics from the survey. After survey, getting a proper and decent statistics, applying the proper weights on the results of survey is very important and necessary. Therefore in this study, three estimation methods which are raking, BLS and general linear regression method are compared with MSE, Coverage, CV, LE and NC.

• Korean Journal of Human Ecology
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• v.24 no.3
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• pp.451-461
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• 2015

It was the purpose of this study that propose architectural design process through analysis of concepts considering regional characteristics. The procedure of this study was as follows : First, classifying design process through investigating paper-survey and case studies. And We would investigate representation process of design concepts applied to design competitions entries. Finally, we would investigate design process applied to buildings in various districts. In the results, we could find that domestic architects were applying to site plan, floor plan, elevation plan, section plan and mass plan-led design process to express design concepts. And according to survey on buildings in various districts, we could verify that architects were applying various design process to express design concepts according to site characteristics. These results could help architects to design appropriately, according to site characteristics.

• Communications for Statistical Applications and Methods
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• v.12 no.1
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• pp.29-38
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• 2005

In sample design, determining the weights of estimates becomes usually great influence on the result. In this article, raking methods are applied to different domain and depending on the range of the domain and sample size, the results of estimates are explained and compared. For the comparison, we use the MSE, MAE, MSPE and MAPE with Actual State of Minor Enterprisers Human Resources Survey data in 2001. The simulation result shows that more elaborate method is superior to the widely used method as expected but the difference is not quite significant.

• Journal of Information Technology Services
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• v.10 no.1
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• pp.191-209
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• 2011

The purpose of this research is to develop a service R&D concept definition and finding service R&D demand in Korea. It is necessary to develop an effective service R&D model to improve the competitiveness of the service industry. A survey model for finding service R&D demands has been developed through extensive discussions with experts. A demand survey for 91 experts in service industry and academia has been conducted to find relative weights of each service R&D category. Several other aspects on service R&D has beed investigated to analyze the relative importance of service R&D subjects. And a benchmarking on previous service R&D research investment has been performed. Past and present service R&D topics are compared as a whole and by each individual domain. A service R&D framework and important funding areas has been suggested. The results of this research can be used for research fund allocation decisions for strengthening service industry competitiveness.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.5
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• pp.2251-2258
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• 2012

This study compared the unweighted sample design, frequency weighted sample design and complex sample design to using 2009 Korea National Health and Nutrition Examination Survey in an effort to identify whether or not there is any difference in potential risk factors. Pearson chi-square test and Rao-scott chi-square test were applied to the analytic methods. As a result of analyses, all the variables were overestimated as significant risk factors in case of the unweighted sample design to which only the frequency weights were applied. In addition, there were differences in the confidence levels and results from the simple random sampling analysis and complex sample design to which no weight was applied. It is necessary to carry out the complex sample design rather than the analysis to which the frequency weights are applied, in order to ensure the findings to represent the whole population when our national statistics data is used.

• Journal of Sasang Constitutional Medicine
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• v.33 no.1
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• pp.57-89
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• 2021

Objectives This study is aimed to develop a standard instrument of diagnosis and assessment for the original symptom of Taeeumin. Methods 1. Based on the clinical practice guidelines, the works of Dong-mu, and the expert clinical judgment of the research team, the items to be used in the instrument of diagnosis and assessment for the original symptom of Taeeumin were extracted, and translation was proceeded in plain Korean for easy application and feasible use in daily clinical practice. As a result, candidate items for the diagnosis and assessment tool were derived. 2. An online questionnaire survey was conducted on the candidate items derived through the above process to the expert advisory group for (1) inclusion/exclusion as diagnosis and assessment index (2) evaluation of importance and (3) the validity of translation. Results & Conclusions Through survey of expert advisory group, the number of candidate items were reduced and the preliminary weights were assigned. And based on this, was developed. There were a total of 9 items for Exterior Cold[Wiwanhan] original symptom diagnosis and assessment tool, 21 items for Interior Heat[Ganyeol] original symptom, 15 items for Exterior Disease Unfavorable Patterns[Wiwanhan-paejo] original symptom, and 17 items for Interior Disease Unfavorable Patterns[Ganyeol-paejo] original symptom, and the weights were reflected in each response score so that the final total score could be calculated.

• Journal of Environmental Health Sciences
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• v.50 no.2
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• pp.125-137
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• 2024

Background: The Korea Risk Information Surveillance System (K-RISS) was developed to enable the early detection of food and drug safety-related issues. Its goal is to deliver real-time risk indicators generated from ongoing food and drug risk monitoring. However, the existing K-RISS system suffers under several limitations. Objectives: This study aims to augment K-RISS with more detailed indicators and establish a severity standard that takes into account structural changes in the daily time series of K-RISS values. Methods: First, a Delphi survey was conducted to derive the required weights. Second, a control chart, commonly used in statistical process controls, was utilized to detect outliers and establish caution, attention, and serious levels for K-RISS values. Furthermore, Bai and Perron's method was employed to determine structural changes in K-RISS time series. Results: The study incorporated 'closeness to life' and 'sustainability' indicators into K-RISS. It obtained the necessary weights through a survey of experts for integrating variables, combining indicators by data source, and aggregating sub K-RISS values. We defined caution, attention, and serious levels for both average and maximum values of daily K-RISS. Furthermore, when structural changes were detected, leading to significant variations in daily K-RISS values according to different periods, the study systematically verified these changes and derived respective severity levels for each period. Conclusions: This study enhances the existing K-RISS system and introduces more advanced indicators. K-RISS is now more comprehensively equipped to serve as a risk warning index. The study has paved the way for an objective determination of whether the food safety risk index surpasses predefined thresholds through the application of severity levels.