• Title/Summary/Keyword: expert assessment

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An Analysis on the Level of Achievement in Geography Based on NAEP in the United States (NAEP 문항 반응에 기초한 미국 학생들의 지리 성취수준 분석)

  • Park, Sun-Mee
    • Journal of the Korean association of regional geographers
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    • v.11 no.5
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    • pp.474-487
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    • 2005
  • This paper aims to provide empirical evidence required to describe the level of achievement by analyzing students' item response in NAEP implemented in the United States in 2001. The geography assessment in the NAEP is aimed to test students of 4th, 8th, and 12th grades, and consists of content dimension and cognitive dimension, The former includes 'space and place' 'environment and society' and 'spatial dynamics and connections,' and the latter includes 'knowing' 'understanding' and 'applying,' The level of achievement is defined as three levels for each grade: Basic, Proficient, and Advanced. In this paper, descriptions of achievement is derived inductively from an analysis of student's responses to the items which were selected by using item-mapping method. As a result, there is a great difference between the level of achievement derived empirically from students' response and the level of achievement designed principally suggested by the expert committee. The former could have a contribution to the improvement in geography curriculum.

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Clustering Analysis of Films on Box Office Performance : Based on Web Crawling (영화 흥행과 관련된 영화별 특성에 대한 군집분석 : 웹 크롤링 활용)

  • Lee, Jai-Ill;Chun, Young-Ho;Ha, Chunghun
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.39 no.3
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    • pp.90-99
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    • 2016
  • Forecasting of box office performance after a film release is very important, from the viewpoint of increase profitability by reducing the production cost and the marketing cost. Analysis of psychological factors such as word-of-mouth and expert assessment is essential, but hard to perform due to the difficulties of data collection. Information technology such as web crawling and text mining can help to overcome this situation. For effective text mining, categorization of objects is required. In this perspective, the objective of this study is to provide a framework for classifying films according to their characteristics. Data including psychological factors are collected from Web sites using the web crawling. A clustering analysis is conducted to classify films and a series of one-way ANOVA analysis are conducted to statistically verify the differences of characteristics among groups. The result of the cluster analysis based on the review and revenues shows that the films can be categorized into four distinct groups and the differences of characteristics are statistically significant. The first group is high sales of the box office and the number of clicks on reviews is higher than other groups. The characteristic of the second group is similar with the 1st group, while the length of review is longer and the box office sales are not good. The third group's audiences prefer to documentaries and animations and the number of comments and interests are significantly lower than other groups. The last group prefer to criminal, thriller and suspense genre. Correspondence analysis is also conducted to match the groups and intrinsic characteristics of films such as genre, movie rating and nation.

Characteristics of Fall Events and Fall Risk Factors among Inpatients in General Hospitals in Korea (입원 환자의 낙상실태 및 위험요인 조사연구: 국내 500병상 이상 종합병원을 중심으로)

  • Choi, Eun Hee;Ko, Mi Suk;Yoo, Cheong Suk;Kim, Mi Kyoung
    • Journal of Korean Clinical Nursing Research
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    • v.23 no.3
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    • pp.350-360
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    • 2017
  • Purpose: The purpose of this study was to investigate the present status of falls among inpatients in general hospitals and to identify the fall risk factors that reflect the characteristics of domestic hospitals. Methods: Data were collected between December 15, 2016 and January 15, 2017 from 32 Korean hospitals having 500 or more beds. First, 42 risk factors were extracted based on literature review and expert opinions. Then the importance of each factor was evaluated by 223 nurses from medical and surgical adult ward and intensive care units in 40 hospitals. Results: The incidence rate of falls in 18 hospitals was 3.87 per 1,000 total discharged patients and 0.55 per 1,000 patient-days, and the rate of injury-related falls was 40.5%. Major risk factors for falling were identified as the following: being over 65 years of age, history of falls during admission, physical mobility disorders requiring assistance, physical factors (dizziness or vertigo, unstable gait, general weakness, walking aids, visual problems), cognitive factors (delirium, lack of understanding on limitations), neurological disease, CNS medications Conclusion: The findings provide information that can be in the development of a fall risk assessment tool for inpatients in general hospitals in Korea.

Development of Evaluation Method for Competition Intelligence of Sport Talented Children (체육영재의 영재성 평가를 위한 도구 개발)

  • Kim, Kwang-Hoi;Kim, Won-Hyun;Kim, Do-Youn
    • Journal of Digital Convergence
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    • v.13 no.10
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    • pp.579-586
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    • 2015
  • Sport talent development center have been operating in order to support sports gifted children of the training in the early finding and selecting potential elementary school students for sports. For this purpose, elementary students in grades 2~6 are selected through basal fitness and physique test. However qualitative assessment of the student was not in progress, but depending on current physique and fitness totally sports talented children were selected. Therefore this study was to develop a tool to determine giftedness based on the observation method to assess the athletic potential of gifted children based on Yoon's competition intelligence(2011). For this purpose of study, sub-factors were extracted through expert consultations. Based on the extracted sub-factors, such as training intelligence, learning ability practical intelligence were extracted for practical intelligence, and finally 16 evaluation questions were proposed to evaluate sports talented children. Proposed questions will be helpful for quality evaluation of sports gifted children, as well as using as a method for discovering sports gifted children.

Nano-delamination monitoring of BFRP nano-pipes of electrical potential change with ANNs

  • Altabey, Wael A.;Noori, Mohammad;Alarjani, Ali;Zhao, Ying
    • Advances in nano research
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    • v.9 no.1
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    • pp.1-13
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    • 2020
  • In this work, the electrical potential (EP) technique with an artificial neural networks (ANNs) for monitoring of nanostructures are used for the first time. This study employs an expert system to identify size and localize hidden nano-delamination (N.Del) inside layers of nano-pipe (N.P) manufactured from Basalt Fiber Reinforced Polymer (BFRP) laminate composite by using low-cost monitoring method of electrical potential (EP) technique with an artificial neural networks (ANNs), which are combined to decrease detection effort to discern N.Del location/size inside the N.P layers, with high accuracy, simple and low-cost. The dielectric properties of the N.P material are measured before and after N.Del introduced using arrays of electrical contacts and the variation in capacitance values, capacitance change and node potential distribution are analyzed. Using these changes in electrical potential due to N.Del, a finite element (FE) simulation model for N.Del location/size detection is generated by ANSYS and MATLAB, which are combined to simulate sensor characteristic, therefore, FE analyses are employed to make sets of data for the learning of the ANNs. The method is applied for the N.Del monitoring, to minimize the number of FE analysis in order to keep the cost and save the time of the assessment to a minimum. The FE results are in excellent agreement with an ANN and the experimental results available in the literature, thus validating the accuracy and reliability of the proposed technique.

A Fuzzy Evaluation Method of Traveler's Path Choice in Transportation Network (퍼지평가방법을 이용한 교통노선 결정)

  • 이상훈;김덕영;김성환
    • Journal of Korean Society of Transportation
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    • v.20 no.1
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    • pp.65-76
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    • 2002
  • This study is realized using fuzzy evaluation and AHP(the analytic hierarchy process) for the optimum search of traffic route and estimated by the quantitative analysis in the vague subjective judgement. It is different from classical route search and noticed thinking method of human. Appraisal element, weight, appraisal value of route is extracted from basic of the opinion gathering fur the driving expert and example of route model was used for the finding of practice utility. Model assessment was performed attribute membership function making of estimate element, estimate value setting, weight define by the AHP, non additive presentation of weight according to $\lambda$-fuzzy measure, Choquet fuzzy integral.

Effects of an Educational Program of Pregnancy and Delivery on Pregnancy related Knowledge, Newborn Care Knowledge, and Postpartum Care Self-efficacy of Marriage Immigrant Women (결혼이주여성을 위한 임신/분만관리 교육프로그램이 임신관련지식, 신생아 양육지식 및 산후관리 자기효능감에 미치는 효과)

  • Kim, Eun-Hee;Lee, Eun-Joo;Kim, Mi-Jo;Park, Dong-Young;Lee, Sung-Hee
    • Journal of Korean Academy of Nursing
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    • v.40 no.1
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    • pp.78-87
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    • 2010
  • Purpose: This study was designed to evaluate the effects of an educational program on pregnancy and delivery including pregnancy related knowledge, newborn care knowledge, and postpartum care self-efficacy for married immigrant women. Methods: A nonequivalent control group quasi-experimental design was used. The educational program was developed by though an educational need assessment of married immigrant women and an expert opinion. The program was provided for 3 weeks, once a week for two hours. The data were analyzed with SPSS program using Kolmogorov-Smirnov, $X^2$-test, Fisher's exact test, and t-test. Results: The program significantly improved pregnancy related knowledge, newborn care knowledge, and postpartum care self-efficacy for the married immigrant women who participated in the program compared to the women who did not. Conclusion: The results indicate that the educational program has an affirmative effect on pregnancy related knowledge, knowledge of newborn care, and postpartum care self-efficacy in these women. It is suggested, therefore, that the educational program be used to every married immigrant woman at the public health centers or delivery clinics help them to adjust to the childbearing and childrearing experience and this will ultimately enhance the quality of family life of married immigrant women in Korea.

Development of a Customer Orientation Scale for Clothing Salespeople (의류판매원의 고객지향성 측정도구 개발)

  • Han, Sang-In;Hwang, Sun-Jin
    • Journal of the Korean Society of Clothing and Textiles
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    • v.36 no.2
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    • pp.152-164
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    • 2012
  • This study develops a valid and reliable scale to evaluate customer orientation for clothing salespeople in order to provide a foundation for systematic and empirical research in the apparel industry. The study was conducted in two phases. First, a scale was developed to evaluate the customer orientation of clothing salespeople through a qualitative method. The second phase involved the verification of the validity of the developed evaluation questions through a quantitative method. The subjects of this study were 327 clothing salespeople, and the results were analyzed using AMOS 7.0 and SPSS 15.0. The results were as follows: First, customer orientation questions were elicited from in-depth interviews with fashion sales-people, analyses of fashion magazine articles, and previous studies. From the results, 38 preliminary questions were selected based on categorization, modification, and expert analyses of the content validity. Second, in order to verify the validity of the customer orientation scale that consisted of 24 questions in 7 factors, we performed a verification of the convergent validity through an assessment of the magnitude of standardization factor loading, average variance extracted (AVE), and construct reliability. Discriminant validity was verified using the AVE of each of the two constructs and a comparison of the square of the correlation between the constructs. According to the results, the measured values were above or near the guideline values that demonstrates the validity of the customer orientation scale.

Development of A Community-Based Nursing Center Model: Focused on Health Promotion of Infant & Toddler (영유아 건강증진을 위한 지역사회 간호센터 모형 구축)

  • Oh, Ka-Sil;Kim, Eui-Sook;Kim, In-Sook;Seo, Mi-Hye;Ham, Ok-Kyung;Kim, Gwang-Suk;Margaret, Storey J.;Cho, Won-Jung
    • Research in Community and Public Health Nursing
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    • v.13 no.4
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    • pp.795-807
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    • 2002
  • Objectives: The purpose of this study was to develop a community-based nursing center model that can provide health promotion for infants and toddlers as well as a research and practice site for nursing faculty and students. Methods: Review of current health care system and health promotion programs, and workshops with brain-storming were carried out to identify needy areas of services to be provided by the nursing center. Finally, the community nursing center model was developed through expert consultation and filed visits. Results: The services and programs were developed for infants and toddlers residing in Seoul area. These services and programs include growth and developmental screening, environment and health problem assessment, infant stimulation and parent education, and self-help group. Full-time and part-time staff nurses and nurse practitioners will provide those services and offer home visiting if needed. Database system, health information system, and trainers' training programs were developed as well. Conclusion: The nursing center model developed in this study will ensure clients direct access to nursing care and increase of autonomy and accountability of nursing practices. The nursing center model focused on disease prevention and health promotion will enhance the quality of life of the infants, toddlers and their families as well as to decrease national health care expenditure.

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Development of Safety and Environment Index for Vehicle Inspection Data Using Statistical Methods (통계적 분석 기법을 활용한 자동차 검사 안전지수 및 환경지수 개발)

  • Hong, Ji-sun;Oh, Se-do;Kim, Young-jin;Youn, Young-han;Baek, An-Sun
    • Journal of Korean Institute of Industrial Engineers
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    • v.41 no.4
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    • pp.352-358
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    • 2015
  • It is important to guarantee the safety of vehicle to minimize the damage to the driver in case of the accidents. In order to inspect and later enhance the safety of vehicle, the owner of the vehicle usually have a vehicle safety inspection. The Korea Transportation Safety Authority (KOTSA) issues the Comprehensive Performance Inspection Certificate after vehicle inspection. The certificate only specify the legal inspection criteria for safety and measured values of the safety parameters, however, as ordinary driver in lack of expert knowledge about the vehicle is difficult to understand the contents of the Certificate. Thus, in this paper, the authors try to give the information about the inspection results in easier way to understand. This information not only guarantees the owner of the vehicle to better understand the inspection results, but it also gives the opportunity to the driver to deal with the specific problem listed in the results. The methods in this paper are to transform the vehicle inspection data into the non parametric distribution to easily represent the values to the index later on. Also, example indexes are presented to the actually inspected vehicle based on the reference distribution to show the better assessment of the developed method.