• 융합정보논문지
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• 제12권3호
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• pp.158-170
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• 2022

본 연구의 목적은 협력학습 기반 수업에서의 동료평가에 대한 수업 만족도를 분석하는 것이다. 협력학습 기반 수업에서 동료평가를 위한 수업 절차 설계, 동료평가 유형과 문항 개발, 동료평가 실시, 수업만족도 조사 및 분석하여 교육적 시사점을 도출하고자 하였다. 연구대상은 문제중심학습과 프로젝트 기반 수업으로 선정된 협력학습 기반 수업 참여자를 대상으로 하였다. 협력학습 기반 수업에서의 동료평가에 대한 수업 만족도는 수도권 소재 A대학에서 협력기반 수업 참여자 168명을 대상으로 설문조사를 진행하였다. 연구도구는 동료평가를 위한 협력학습 절차는 팀 구성, 과제 수행 계획, 과제수행, 중간평가, 과제 수행 완료, 발표 및 평가, 자기평가로 설계하였고, 동료평가는 팀내. 팀간 평가로 유형화 하였고, 단계별 동료평가문항을 설계하였다. 동료평가 문항의 내용타당도는 전문가 12인의 CVR로 평정하였다. 연구결과에서 동료평가의 수업만족도는 평균 4.05(SD=.91)로 높게 나타났고 수업의 집중, 수업의 성실성, 자발성, 학습 분위기의 순으로 나타났다. 수업 만족도 수준 차이 검증 결과, 성별과 학년에서는 차이가 나타나지 않았으며, 수업 유형에서는 문제중심학습이 프로젝트기반 학습에 비하여 만족도 수준이 높게 나타났고 통계적으로 유의미하였다. 본 연구의 결과는 고등교육에서의 동료평가 적용 및 확대를 위한 수업설계와 운영의 시사점을 제공하는 데에 의의를 가진다.

• 재활치료과학
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• 제11권1호
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• pp.69-85
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• 2022

목적 : 본 연구는 연하장애 환자를 대상으로 구강안면기능을 평가할 수 있는 포괄적 구강안면기능척도(Comprehensive Oro-Facial Function Scale; COFFS)를 개발하고자 실시되었다. 연구방법 : COFFS의 문항 구성과 신뢰도를 검증하는 연구로 4개의 선행 연구를 선택 분석하여 예비문항을 수집하였고, 전문가를 대상으로 2차의 설문조사를 통해 내용타당도(Content Validity Ratio; CVR)를 도출하였다. 평가 항목의 내적 타당도를 위해 Cronbach's 𝛼값을 산출하였으며, 급간 내 상관계수(Internal Classification Coefficients; ICC)를 이용하여 검사-재검사 신뢰도 및 검사자간 신뢰도를 구하였다. 결과 : 전체 문항의 내용타당도는 0.67로 나타났으며, 영역별 Cronbach's 𝛼값의 경우 의사소통 영역 0.849, 구강안면 구조 및 형태 -0.224, 구강안면 움직임 수행능력 0.831, 저작 및 삼킴 기능은 0.946으로 도출되었으며, 검사-재검사 신뢰도는 0.974, 검사자간 신뢰도는 0.937로 높은 신뢰도를 보였다. 결론 : 본 연구에서 COFFS의 평가도구는 4개의 영역에서 34개의 문항을 최종적으로 선정하였고, 평가항목에 따라 3~5점 척도로 개발되었다. 추후 연구에서는 구강안면기능을 측정하는 다른 평가도구와의 상관관계를 통해 타당도를 입증할 추가연구가 필요할 것으로 사료된다.

• Journal of Nutrition and Health
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• 제57권2호
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• pp.244-260
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• 2024

본 연구에서 개정된 한국인을 위한 식생활 지침을 기반으로 식품 및 영양소 섭취, 식생활 습관, 환경을 고려한 식생활 문화를 평가할 수 있는 항목을 개발하였다. 예비 문항을 확보하기 위하여 국내·외 평가도구 및 최신 문헌을 조사하여 항목을 조사하였고, 전문가 11명 대상 타당도 평가를 통해 70개의 항목을 선정하였다. 선정된 후보 항목 평가를 위해 서울·수도권 지역 중심으로 성인 332명을 대상으로 온·오프라인 조사를 시행하였고, 하루 총 에너지 섭취가 500 kcal 미만 또는 5,000 kcal 이상으로 섭취한 대상자 2명을 제외한 330명의 조사 자료를 활용하여 수렴타당도 분석 및 탐색적 요인분석을 진행하였다. 분석 결과 최종 선정된 문항은 총 34개로 식품 및 영양소 섭취 영역 11개, 식생활 습관 영역 9개, 식생활 문화 영역 14개로 구성되었다. 본 연구에서 개발한 평가 항목은 2021년 개정된 식생활지침을 기반으로 영역별로 성인의 전반적인 식사의 질과 지속가능한 식생활을 동시에 평가하는 데 용이하다는 점에서 건강한 식생활 개선을 위한 평가 도구로써 활용이 기대된다.

• 대한간호학회지
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• 제45권1호
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• pp.107-117
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• 2015

Purpose: The purpose of this study was to evaluate the psychometric properties of the Korean version of the Alzheimer's Disease Knowledge Scale (ADKS-K) to determine its applicability to Korean adults. Methods: Cross-cultural validity was performed according to Consensus-based Standards for the Selection of Health Measurement Instruments (COSMIN). The Kuder-Richardson Formula 20 for internal consistency and Intraclass Correlation Coefficient (ICC) for test-retest reliability were conducted. Content validity, criterion related validity and construct validity were evaluated. The Classical Test Theory (CTT) model and the Item Response Theory (IRT) model were applied in performing the item analysis. Results: The KR 20 was .71, and the ICC was .90, indicating that the ADKS-K has internal consistency and stability reliability. Thirty items of the ADKS-K had significant Content Validity Ratio (CVR) values, i.e., mean of 0.82 and range of 0.60~1.00. Mean item difficulty and discrimination indices calculated by TestAn program were 0.63 and 0.23, respectively. Mean item difficulty and discrimination indices calculated by BayesiAn program were -0.60 and 0.77, respectively. These tests indicate that ADKS-K has an acceptable level of difficulty and discriminating efficiency. Conclusion: Results suggest that ADKS-K has the potential to be a proper instrument for assessing AD knowledge in Korean adults.

• 한국세라믹학회지
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• 제34권12호
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• pp.1199-1204
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• 1997

SiC conversion layer was fabricated by the chemical vapor reaction between graphite substrate and silica powder. The CVR process was carried out in nitrogen atmosphere at 175$0^{\circ}C$ and 185$0^{\circ}C$. From the reduction of silica powder with graphite substrate, the SiO vapor was created, infiltrated into the graphite substrate, then, the SiC conversion layer was formed from the vapor-solid reaction of SiO and graphite. In the XRD pattern of conversion layer, it was confirmed that 3C $\beta$-SiC phase was created at 175$0^{\circ}C$ and 185$0^{\circ}C$. Also, in the back scattered image of cross-sectional conversion layer, it was found that the conversion layer was easily formed at 185$0^{\circ}C$, the interface of graphite substrate and SiC layer was observed. It was though that the coke particle size and density of graphite substrate mainly affect the XRD pattern and microstructure of SiC conversion layer. In the oxidation test of 100$0^{\circ}C$, the SiC converted graphites exhibited good oxidation resistance compared with the unconverted graphites.

• 공학교육연구
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• 제20권4호
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• pp.21-27
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• 2017

The purpose of this study is to provide basic data and guideline to STEM(Science, Technology, Engineering, Mathematics) educators who prepare engineering education in elementary and secondary school. For this, this study develops a composition model for engineering education program of elementary and secondary school. To do this, a literature research, experts interview and Delphi survey were conducted. Through the literature research, we extracted the components of model for engineering education program of elementary and secondary school and then made a first draft of the model. The draft was revised by experts while Delphi survey was used to validate the model based on Delphi panels' opinions. The panels for the Delphi survey consisted of 51 experts in the STEM education field. The survey was conducted three different times and importance survey was included in the third stage. The conclusions of this study were as follows: First, the model consist of definition, 4 directions, 4 characteristics, 3 educational goals according to school level, educational contents area and element, teaching and learning method and evaluation method. The educational contents area and element consist of 2 major areas, 7 areas and 18 elements. Second, all components of the developed model were valid in most of the statistics such as mean, standard deviation, the degree of consensus and convergence, and CVR(Content Validity Ratio). Third, importance for education contents area and element according to the school level are analyzed.

• 한국정보시스템학회지:정보시스템연구
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• 제28권4호
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• pp.403-424
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• 2019

Purpose The objective of this study is to determine the programming language for improving algorithmic thinking of basic software education for non-majors, which has recently been receiving attention to nurture talents needed in the era of the Fourth Industrial Revolution. Design/methodology/approach In this study, Delphi method was used to select the suitable programming language for the features of each of five departments for basic software education for non-majors in order to develop the capability of algorithmic thinking. The survey was conducted three times to 21 experts, and the results were analyzed using quantitative analysis (CVR) values and stability. Findings For the most suitable programming language for each department determined in this study, App Inventor was selected for humanities department, RUR-PLE for natural science department, App Inventor for social science department, Python for engineering department, and Scratch for fine arts department. This is expected to be used as the basis for determining the direction of curriculum and operation of universities starting basic software education through programming language by department proposed in this study.

• 지역사회간호학회지
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• 제31권2호
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• pp.130-142
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• 2020

Purpose: The purpose of this study was to verify the validity and reliability of the Korean version of the Pain in Older Adults Knowledge Survey (K-POAKS) to assess knowledge of pain in older adults including people with dementia for use in long-term care hospital nurses. Methods: Survey data were collected from a convenience sample of 179 nurses who have worked in long-term care hospitals in B, D and U cities. The Kuder-Richardson Formula 20 for internal consistency for test reliability was conducted. The content, criterion-related and construct validity were evaluated using SPSS/WIN 22.0. Results: The KR 20 was .75 and Content Validity Ratio (CVR) was a range of 0.84~1.00. The criterion-related validity was positively correlated with attitudes (r=.28, p<.001) and performance (r=.21, p=.004). The construct validity of K-POAKS was analyzed by conducting the principal component method using the exploratory factor analysis varimax rotation, and seven factors were derived above the eigenvalue of 1.0. The seven factors explained 58.5% of the total variation. Conclusion: The Korean version of the POAKS showed satisfactory internal reliability, content validity, criterion-related validity and construct validity. These results suggest that the K-POAKS could be used as a suitable tool to measure the knowledge of the aged people's pain, including that of dementia patients for long-term care hospital nurses.

• 한국항공운항학회지
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• 제23권1호
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• pp.74-84
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• 2015

The purpose of this study is to develop competitiveness evaluation index for global aviation training organizations. Research and studies on relevant documents were conducted to establish the index. With no sufficient study results previously done directly associated with global aviation training organization, relevant and related documents, such as studies on competitiveness evaluation index of higher educational institutions, were reviewed as an alternative. Two rounds of delphi surveys were conducted based on the review and consultation from experts in aviation training and human resource management fields. First round of survey with 62 evaluation indices were carried out, through which a total of 29 were selected, and 19 indices were chosen during the second round of survey. However, factor analysis was conducted in order to justify the survey result, which eliminated 3 more indices, with 16 finally selected. This study will provide implications for aviation training organizations which need to further improve their competitiveness globally.

• Nuclear Engineering and Technology
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• 제53권7호
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• pp.2095-2103
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• 2021

A small power ADS design using thorium oxide and diluent matrix reprocessed fuel is proposed for a high transmutation rate, small reactivity swing, and strong safety features. Two fuel matrices (CERCER and CERMET) and different recycled fuel compositions recovered from UO₂ spent fuels with 45 GWd/tU and 60 GWd/tU burnup were investigated to determine the suitable fuel for the ADS. It was found that the transmutation of each isotope depends on TRU initial loading amount. After examining the cores, the results show that CERCER fueled ADS has a negative coolant void reactivity (CVR) and a smaller radiotoxicity at discharge compared to that of CERMET core. It implies that CERCER fuel has enhanced safety features and more flavor in terms of radiotoxicity management. To increase fuel utilization and core operation efficiency, a simple assembly shuffling pattern for the CERCER fueled ADS is also proposed. Eigenvalue and burnup calculations were conducted using Serpent 2 with ENDF/B-VII.0 library in both kcode and external source modes, and it indicates that the results of transmutation analyses obtained by kcode only is reliable to discuss the transmutation potential of ADS. Burnup calculation with the fixed-source mode is essential to be used for more practical results of the transmutation by ADS.