• 대한간호학회지
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• 제46권1호
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• pp.109-117
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• 2016

Purpose: The aim of this study was to develop a Korean version of Night Eating Questionnaire (KNEQ) and test its psychometric properties and evaluate items according to item response theory. Methods: The 14-item NEQ as a measure of severity of the night eating syndrome was translated into Korean, and then this KNEQ was evaluated. A total of 1171 participants aged 20 to 50 completed the KNEQ on the Internet. To test reliability and validity, Cronbach's alpha, correlation, simple regression, and factor analysis were used. Each item was analyzed according to Rasch-Andrich rating scale model and item difficulty, discrimination, infit/outfit, and point measure correlation were evaluated. Results: Construct validity was evident. Cronbach's alpha was .78. The items of evening hyperphagia and nocturnal ingestion showed high ability in discriminating people with night eating syndrome, while items of morning anorexia and mood/sleep provided relatively little information. The results of item analysis showed that item2 and item7 needed to be revised to improve the reliability of KNEQ. Conclusion: KNEQ is an appropriate instrument to measure severity of night eating syndrome with good validity and reliability. However, further studies are needed to find cut-off scores to screen persons with night eating syndrome.

• 한방안이비인후피부과학회지
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• 제22권1호
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• pp.133-140
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• 2009

Objective : To evaluate autonomic nerve balance and sympathetic nerve activity in patients with inner ear dysfunction as examined by heart rate variability(HRV) Research Methods and Procedures : One hundred and twenty three patients(between 15 to 59 years old) who visited Dept. of Oriental medical Opthalmology & Otolaryngology, Kyunghee university and had an examination of HRV test, were selected as subjects of our study. We checked items of HRV test(such as SDNN, RMSSD, LF, HF, TP, norm-LF, norm-HF, LF/HF ratio), and analyzed time and frequency domain differences between three groups classified as tinnitus, hearing loss and vertigo. And we compared HRV items(such as SDNN,RMSSD, TP and LF/HF ratio) with standard levels. Results and Conclusion : Our results showed no significant differences between three groups in HRV items except for mean heart rate. Patients with inner ear dysfunction showed significant lower TP than 2000$(ms^{2})$(p <0.001) and significant higher LF/HF ratio than 1.5(p=0.003). So we suggest that patients with inner ear dysfunctions such as tinnitus, vertigo and hearing loss, have sympathetic hypertonus and inactivity of autonomic nerve regulation.

• 대한가정학회지
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• 제36권7호
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• pp.39-56
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• 1998

This paper concerned with the Honsu(婚需) norms of urban residents in Korea, and was designed to suggest a solution to solve the current problems of the extravagant Honsu with the changes int he customs related to Honsu. Data collected through interviews with questionaire were analyzed statistically by X2-test, ANOVA, Scheffe-test, factor analysis, cluster analysis and product moment correlation coefficients using SPSS PC+ program. Factors of HONSU norm, was characterized into 3 types, exchangabilities and focusing on groom's family, preparation of goods for housekeeping, and independence from parents and individualism. HONSU was found to be regarded as the basis for better life for the new family provided by their patents in terms of the family norm. The current problems of extravagant HONSU seems due to the family norm. Factors of HONSU norms could be grouped into 4 categories by the cluster analysis. They are 1)the preparation of basic house-keeping items for independent family, 2)an opportunity to secure an economic base for the new family, 3)an opportunity to show off their wealth by selecting easily exchangable goods, and 4)others who select items based on their personalities. An oppportunity to show off their wealth by selecting easily exchangable was the cultural norm of Honsu, and it was found that urban housewives had almost uniform thoughts about Honsu. Consideration of items for individuals' needs and independent life took place in deciding on Honsu for all four types of couples although the weight given to this consideration showed difference. Preparation for the new family and individual needs were the common grounds of HONSU norms in all categories through the weight was different.

• 한국수학교육학회지시리즈A:수학교육
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• 제40권2호
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• pp.217-239
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• 2001

To lessen the ratio of under achievers is one of the most urgent task which recent school mathematics education is confronted with. To cope with this problem efficiently, math. teachers should know more specifically and concretely the causes that make the students dislike mathematics. But actually, there are too many reasons for these situations. So, in this paper, we tried to devise a tool to analyze and measure each student's math. disliking status. We proceeded this research via the following procedures. 1. Grasping the causes which make the students dislike mathematics as specifically as possible. To obtain this, we asked more than 300 of secondary school students to write down their thoughts about school mathematics. 2. Analyzing the responses, we abstracted 74 numbers of items which were supposed to be the causes for secondary school students'mathematics disliking. 3. With these items we made a test to measure students'aptitude for each item. 4. With this test paper, we tested over 800 of secondary school students. Through factor analysis and theoretical argument, we categorized the 74 items into 11 groups whose names were defined as factors of mathematics disliking. 5. For each of these 11 factors, we developed a norm which could serve as standard of comparison in measuring each student's mathematics disliking status. Using this tool teachers were able to describe each student's traits of mathematics disliking more specifically.

• 한국응급구조학회지
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• 제24권3호
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• pp.65-78
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• 2020

Purpose: The purpose of the study was to investigate the core competency and educational needs of paramedic students in disaster management. Methods: A self-reported questionnaire was completed by 207 paramedic students between June 1 and October 29, 2017. The study instrument included disaster preparedness (15 items), disaster management core competency (26 items), disaster education needs (26 items). Data were analyzed using t-test, ANOVA, and Duncan's multiple range test using IBM SPSS 24.0. Results: The students reported that only 13% had experienced or witnessed disasters; however, 95.2% would be willing to help in the event of a disaster. Their disaster preparedness was 1.84 points on a 3-point scale. We did see differences in disaster preparedness by background: hospital practice (F=5.352, p=.001); fire-fighting practice (F=8.994, p=.000). The students had a core competency of disaster management at 3.25 points on a 5-point scale with differences depending on major satisfaction (F=3.760, p=.006). The level of student demands for disaster education was 4.29 points. Conclusion: If variety of educational environments are provided for disaster-related learning and training, the core competency of disaster management for paramedic students will improve. The students will be available as disaster management experts in various fields, even after graduation.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1324-1327
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• 2009

Social infrastructure is the basis of public welfare and should be recognized and managed as important assets. Bridge is one of the most important infrastructures to be managed systematically because the impact of the failure is critical. It is essential to monitor the performance of bridges in order to manage them as an asset. But current analytical methods such as predictive modeling and structural analysis are very complicated and difficult to use in practice. To apply these methods, structural and material condition data collection should be performed in each element of bridge. But it is difficult to collect these detailed data in large numbers and various kinds of bridges. Therefore, it is necessary to collect data of major measurement items and predict the life of bridges roughly with advanced information technologies. When certain measurement items reach predefined limits in the monitoring bridges, precise performance measurement will be done by detailed site measurement. This paper describes the selection of major measurement items that can represent the tendency of bridge life and introduces automated bridge data collection test-bed using wireless sensor network technology. The following will be major parts of this paper: 1) Examining the features of conventional bridge management system and data collection method 2) Mileage concept as a bridge life indicator and measuring method of the indicator 3) Test-bed of automated and real-time based bridge life indicator monitoring system using wireless sensor network

• 대한간호학회지
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• 제54권2호
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• pp.279-295
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• 2024

Purpose: This study aimed to develop a scale to measure hospital nurses' silence behavior and examine its validity and reliability. Methods: A total of 52 preliminary items on hospital nurses' silence behavior were selected using a content validity test by seven experts on 53 candidate items derived from a literature review and in-depth interviews with 14 nurses. A total of 405 hospital nurses participated in a psychometric testing. Data analysis comprised item analysis, exploratory and confirmatory factor analyses, and convergent and discriminant validity tests. Pearson's correlation coefficient was used for assessing concurrent validity, and Cronbach's alpha was used for the reliability test. Results: The final scale consisted of nine factors with 31 items, exhibiting acceptable model fit indices, convergent validity, and discriminant validity. The score of the entire scale was positively correlated with the 'Organizational Silence Scale (OSS)-the issues on which nurses remain silent' (r = .60, p < .001) and 'OSS-the reasons why nurses remain silent' (r = .68, p < .001). Cronbach's α of the scale was .92, and α of each subscale ranged from .71 to .90. Conclusion: The Hospital Nurses' Silence Behavior Scale is a useful tool for assessing multifaceted silence behavior among nurses. It can provide basic data for developing better communication strategies among nurses and other hospital staff.

• 한국과학교육학회지
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• 제24권3호
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• pp.519-531
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• 2004

최근 제7차 교육과정이 실시되면서 준거 지향적인 수행평가에 대한 요구가 커지고 있으며, 이러한 상황에서 평가의 절대적인 기준을 마련할 필요성 또한 절실해지고 있다. 본 연구는 제7차 교육과정에 근거하여 고등학교 과학 중 '생식' 단원과 '생물 농축' 단원에 대해서 필수 학습 요소, 성취 기준, 평가 기준 및 평가 문항을 개발하고, 이를 바탕으로 개발한 평가 문항을 실제 현장에 적용하여 그 타당성을 검증하는 것을 목적으로 한다. 본 연구에서는 제7차 교육과정과 고등학교 과학의 7종 교과서를 바탕으로 하여, '생식' 과 '생물 농축' 단원의 필수 학습 요소를 추출하고, 준거 지향 평가의 기초가 되는 객관적이고 타당한 성취 기준 및 평가 기준을 마련하였다. 추출된 필수 학습 요소는 '생식' 단원에서 12개, '생물 농축' 단원에서 4개이었으며, 개발된 성취 기준은 '생식' 단원에서 총 26개, '생물 농축' 단원에서 총 9개로 각각은 지식(K), 탐구(P), 태도(A)의 세 개 영역으로 구분하여 개발하였다. 이상과 같이 개발된 성취 기준을 바탕으로 평가 기준을 개발하였다. 개발된 평가 기준의 수는 '생식' 단원에서 총 25개, '생물 농축' 단원에서 9개였다. 성취 기준과 평가 기준에 따라 '생식' 단원과 '생물 농축' 단원에서 개발된 평가 문항의 수는 서술형 문항 17개, 논술형 문항이 13개, 포트폴리오가 2개로 총 22문항이었다. 각 평가 문항은 구체적인 채점 기준을 제시하였으므로, 교육과정에 근거한 객관적인 평가에 사용될 수 있다. 개발된 평가 문항 중, 서술형 문항 8개를 경기도 소재 고등학교 1학년 학생 240명을 대상으로 적용 분석하였다. 서술형 문항에 대한 학생들의 응답을 두 가지 검사 이론을 적용하여 분석하였는데, 평가 문항의 기본적인 양호도 검증을 실시한 결과, 본 연구에서 개발된 서술형 문항들은 난이도와 변별도 면에서 전반적으로 적절한 지수를 보여 수행 평가로 사용하기에 적절한 문항들이었다. 개발한 서술형 수행 평가 문항들은 미리 개발된 성취 기준과 평가 기준을 바탕으로 하였으므로 교수 학습의 목표와 내용에도 적합하였다. 고전 검사 이론과 다분 문항 반응 이론에 의해 분석된 문항의 변별도에는 언어적인 해석의 차이가 없었으나, 문항 난이도의 경우는 고전 검사 이론을 사용하였을 때 집단의 특성이 많이 나타나 다분 문항 반응 이론을 사용한 결과와 비교하여 해석의 차이가 다양하게 나타났다.

• 전기학회논문지P
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• 제67권3호
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• pp.168-174
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• 2018

The performance test for 376MW ESS for frequency regulation currently operating in 13 substations is conducted based on the test procedure in the first and second steps. In the first step, components of ESS is moved to the certification authority where the test equipment is located in order to be proceeded with the test. In the second step, the performance test is conducted manually for the ESS equipments installed on site using the movable measurement equipment, and thus it can only be performed on some limited test items and requires a lot of time and manpower. Therefore, mobile test equipment for ESS(MOTES) is being developed that can perform automatically more test items for ESS in the field using the MOTES, and reduce manpower and time. To do this, an algorithm and a prototype of the operating system(MOS) are also being developed that can control MOTES automatically. In this paper, a development of the MOS prototype is introduced and then a simulation is performed to verify the prototype and its algorithm before the field demonstration.

• 한국의상디자인학회지
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• 제23권4호
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• pp.57-71
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• 2021

The purpose of the study is to derive an appropriate knitting method that can increase the appearance, wearability, and functionality through empirical research on the sleeve height knitting ratio of seamless knit wear. The study was conducted by producing seven types of experiment clothes according to knitting ratio to examine the characteristics according to the body armhole and sleeve height ratio. Specifically, after fit evaluatins, variance analysis (ANOVA) was performed to analyze the results of the evaluation, and the evaluated contents were converted into data. Among them, the items with significant results were intensively studied using the Duncan-test. The result showed that the height and the width of the sleeves vary depending on the knitting ratio. Test sweater A was the highest at 16cm, followed by test sweater B, test sweater C, test sweater D, test sweater E, test sweater F, and test sweater G at 4cm. The 1:1 ratio of test sweater A, was the highest, which is knitted in the same course as the body. The larger the difference in the ratio of body and sleeve, the lower the height of the sleeves. As a result of the appearance sensory evaluation, a significant difference was confirmed in the result values (p<0.001) from all items on the front, side, and rear. Specifically, the appearance of the test sweater B(2:4:2) on the front and test sweater C(2:4:3) on the side and rear side was the best. When the sleeves height is properly set, the ratio of the arm line to fit the design with a natural curve is analyzed as a very important factor. The results of this study are expected to be of practical use in product development and production that can increase the feeling when wearing and design satisfaction.