• 제목/요약/키워드: Measurement issues

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Measurement Issues across Different Cultures

  • Lee, Ju-Hee;Jung, Duk-Yoo
    • 대한간호학회지
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    • 제36권8호
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    • pp.1295-1300
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    • 2006
  • Purpose. The purposes of this methodologic paper are to (1) describe theoretical background in conducting research across different cultures; (2) address measurement issues related to instrument administration; and (3) provide strategies to deal with measurement issues. Methods. A thorough review of the literature was conducted. A theoretical background is provided, and examples of administering instrument in studies are described. Results. When applying an instrument to different cultures, both equivalence and bias need to be established. Three levels of equivalence, i.e., construct equivalence, measurement unit equivalence, and full score comparability, need to be explained to maintain the same concept being measured. In this paper, sources of bias in construct, method, and item are discussed. Issues related to instrument administration in a cross-cultural study are described. Conclusion. Researchers need to acknowledge various group differences in concept and/or language that include a specific set of symbols and norms. There is a need to question the philosophical and conceptual appropriateness of an assessment measure that has been conceptualized and operationalized in a different culture. Additionally, testing different response formats such as narrowing response range can be considered to reduce bias.

Service Quality Measurement in Foodservice Industries

  • Seo Sun-Hee
    • Journal of Community Nutrition
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    • 제8권1호
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    • pp.44-57
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    • 2006
  • This study intended to enhance understanding of concept and measurement of service quality and analyzed studies investigating dimension and attributes of service quality in both Korea and international foodservice industries. This study summarized many methodological issues related to service quality measurement, especially SERVQUAL. SERVQUAL has been criticized because performance-expectation difference operationalization threatened reliability and discriminant validity including shared method variance. Researcher suggests that future studies should understand clearly the concept of service quality and methodological issues of SERVQUAL prior to adapting SERVQUAL itself.

골밀도 측정의 올바른 임상 적용 (Clinical Application of Bone Mineral Density Measurement)

  • 김덕윤
    • 대한핵의학회지
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    • 제38권4호
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    • pp.275-281
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    • 2004
  • Compared with the earlier technique of dual photon absorptiometry (DPA) using $^{153}Gd$ radionuclide source, dual energy X-ray absorptiometry (DXA) has advantages of higher precision, accuracy and shorter scanning time. Despite the change from DPA to DPX, the nuclear medicine physicians has remained one of major suplier of this service due to long-standing use of DPA. Among many kinds of bone densitometries, DXA is the "gold standard" for the noninvasive diagnosis of osteoporosis. Especially there is no role for peripheral devices in the monitoring of patients on therapy. But, there are some areas of controversy related to the application of DXA, such as proper site of measurement, accurate interpritation, appropriate use of T-score, and the reference population young database. And the accuracy, precision, and quality control issues relating to bone density measurement are important subjects. To address these issues, the International Society for Clinical Densitometry (ISCD) has convened two Position Development Conferences and addressed official positions. This review deals the key elements of ISCD position paper and other important issues on the management of bone densitometry.

Unsteady Pressure Measurement of Fan Stator Vane Using Pressure Sensitive Paint

  • Sakamoto, Kazuyuki;Tsuchiya, Naoki;Yamamoto, Masahiko;Hamano, Yasunori;Fujii, Kozo
    • 한국추진공학회:학술대회논문집
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    • 한국추진공학회 2004년도 제22회 춘계학술대회논문집
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    • pp.789-794
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    • 2004
  • The pressure sensitive paint (PSP) technique has been well established in external flow field. However, there are still unresolved issues in internal flow field. This work was focused on the application to unsteady pressure measurement of fan flow field. The PSP measurement system was established and the image processing software was developed. First, the performance of PSP was investigated at the static cell. Then the unsteady PSP measurement was carried out at fan test facility. PSP data images were acquired from the suction and pressure surface of stator vanes. Pressure distributions on the surface of the stator vane were detected non-intrusively. The issues of image acquisition and image processing were clarified through the practical PSP application to fan flow field.

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한국형 결혼만족도 척도 개발을 위한 이론적 고찰 (A Theoretical Review for developing a Korean Type Marital Satisfaction Scale)

  • 정현숙
    • 대한가정학회지
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    • 제39권11호
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    • pp.89-106
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    • 2001
  • The purpose of this study is to critically review the related issues of marital satisfaction scale in order to develop a Korean Type Marital Satisfaction Scale. Especially definitional ambiguity, unit of analysis theory of marital satisfaction and issues about measurement and cultural implication are reviewed. Also a section deals with suggestions that could be considered to develop Korean Type Marital Satisfaction Scale.

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Blood pressure measurements and hypertension in infants, children, and adolescents: from the postmercury to mobile devices

  • Lim, Seon Hee;Kim, Seong Heon
    • Clinical and Experimental Pediatrics
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    • 제65권2호
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    • pp.73-80
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    • 2022
  • A mercury sphygmomanometer (MS) has been the gold standard for pediatric blood pressure (BP) measurements, and diagnosing hypertension is critical. However, because of environmental issues, other alternatives are needed. Noninvasive BP measurement devices are largely divided into auscultatory and oscillometric types. The aneroid sphygmomanometer, the currently used auscultatory method, is inferior to MS in terms of limitations such as validation and regular calibration and difficult to apply to infants, in whom Korotkoff sounds are not audible. The oscillometric method uses an automatic device that eliminates errors caused by human observers and has the advantage of being easy to use; however, owing to its measurement accuracy issues, the development of an international validation protocol for children is important. The hybrid method, which combines the auscultatory and electronic methods, solves some of these problems by eliminating the observer bias of terminal digit preference while maintaining measurement accuracy; however, the auscultatory method remains limited. As the age-related characteristics of the pediatric group are heterogeneous, it is necessary to reconsider the appropriate BP measurement method suitable for this indication. In addition, the mobile application-based BP measurement market is growing rapidly with the development of smartphone applications. Although more research is still needed on their accuracy, many experts expect that mobile application-based BP measurement will effectively reduce medical costs due to increased ease of access and early BP management.

PLATFORM FOR PRIVACY CONTROL IN LOCATION BASED SERVICES

  • An, Kyoung-Hwan;Min, Kyoung-Wook;Kim, Ju-Wan
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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    • pp.659-662
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    • 2005
  • Recently, the need for LBS (Location Based Services) is increasing with the rapid growth of the location measurement units, mobile devices, and communication technologies. Especially, wireless carriers are concentrating on LBS since it is regarded as so-called 'killer application' among wireless data services. Although LBS give us convenience and useful information, its use also raises privacy issues. There are quite possibilities that the people's locations are tracked by location measurement units while people do not recognize the existence of the units. To protect a person's location information, lawful and technical aspects should be considered. In this paper, we explain issues, regulations, standards, and platforms related to the protection of the location information. Finally, we suggest the architecture of a platform complying with the regulations and standards. It considers various issues not covered in other studies.

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유전체 코호트 연구의 주요 통계학적 과제 (Statistical Issues in Genomic Cohort Studies)

  • 박소희
    • Journal of Preventive Medicine and Public Health
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    • 제40권2호
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    • pp.108-113
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    • 2007
  • When conducting large-scale cohort studies, numerous statistical issues arise from the range of study design, data collection, data analysis and interpretation. In genomic cohort studies, these statistical problems become more complicated, which need to be carefully dealt with. Rapid technical advances in genomic studies produce enormous amount of data to be analyzed and traditional statistical methods are no longer sufficient to handle these data. In this paper, we reviewed several important statistical issues that occur frequently in large-scale genomic cohort studies, including measurement error and its relevant correction methods, cost-efficient design strategy for main cohort and validation studies, inflated Type I error, gene-gene and gene-environment interaction and time-varying hazard ratios. It is very important to employ appropriate statistical methods in order to make the best use of valuable cohort data and produce valid and reliable study results.

도심 차량통신환경에서의 전파특성 측정과 구현 이슈 (Measurement of Radio Characteristics of Vehicular Communication Environments in Urban Areas and Implementation Issues)

  • 조웅
    • 한국전자통신학회논문지
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    • 제9권9호
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    • pp.1057-1062
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    • 2014
  • 차량통신시스템은 차량/도로기술과 정보통신기술을 접목하여 다양한 안전메시지를 전송하거나 지능형 교통시스템에 적용이 가능하다. 본 논문에서는 IEEE 802.11p를 기반으로 한 차량통신시스템을 소개하고 이 시스템의 전파특성을 도심환경에서 측정한 결과를 보인다. 전파특성은 패킷오류율과 수신스펙트럼을 이용하여 측정한다. 이 결과를 바탕으로 하여 실제 서비스 적용에 있어서 필요한 구현 이슈에 대해 논의한다.

Development of a Self-Diagnostic Measurement Index for ISO 26000 Social Responsibility

  • Lee, Myung-Goo;Cho, Han-Jin
    • 토지주택연구
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    • 제2권4호
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    • pp.325-344
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    • 2011
  • On November 1, 2010, the release of ISO 26000 was announced. ISO 26000 does not require 3rd party verification. But even though it is a standard that is voluntarily adopted, because the international standard for social responsibility can be applied as a trade barrier or business condition between countries, it cannot be ignored. So it is clear that we need to be alerted and prepared for this. This paper offers to help with such needs through organizations by developing an index that organizations can use to understand their current situation and diagnose themselves. This paper conducts a comparative analysis between the 7 core subjects and issues of ISO 26000, the existing indexes used by national institutions and the guideline for sustainable management report, the GRI, with the goal of developing a self-diagnostic index that organizations can utilize in order to diagnose their level of social responsibility. It is divided into the 7 core subjects with 181 measurement issues. There are 7 quantitative issues and 164 qualitative issues. The core subjects, excluding governance, are each alloted 14 points, while governance is alloted with 16 points, for a total score of 100 points. This paper is significant in that it is the first index to make self-diagnostic possible.