• Title/Summary/Keyword: 내적 신뢰도

Search Result 390, Processing Time 0.027 seconds

A Study on the Development of Meta-Evaluation Indicators for Defense R&D Programs by Using FA/AHP Methods (FA/AHP 기법을 활용한 국방연구개발사업 메타평가 지표 개발에 관한 연구)

  • Kim, Soon-Yeong
    • Journal of Korea Technology Innovation Society
    • /
    • v.12 no.1
    • /
    • pp.113-136
    • /
    • 2009
  • The purpose of this study is to develop meta evaluating indicators for Defense R&D Programs in Korea. At first, the four components of this meta evaluation model were designed, which are evaluation context, evaluation input, evaluation process, evaluation output. And fifty two indicators were developed for this meta evaluation. Basic model of meta evaluation was derived from the literature review and brain storming. And this meta evaluation model was determined by adapting the result of experts who performed evaluations for Defense R&D Programs in recent years. Factor Analysis method was used to verify the validity of meta evaluation model. The survey of fifty three members turned out that Cronbach' ${\alpha}$ was over 0.6 in evaluation components and items. And the reliability of evaluation context was 0.877, that of evaluation input was 0.755, that of evaluation process was 0.755, that of evaluation output was 0.755 respectively. Analytic Hierarchy Process (AHP) method was used in assigning the evaluation weight. The survey of twenty two members showed that the Consistency Ratio was 0.09 in evaluation components and items.

  • PDF

Uncertainty Assesment for Moving-boat ADCP Discharge Measurements by GUM Framework (GUM 표준안 기반 이동식 ADCP 유량 측정 불확도 평가)

  • Kim, Dongsu;Kim, Jong Min
    • Proceedings of the Korea Water Resources Association Conference
    • /
    • 2017.05a
    • /
    • pp.71-71
    • /
    • 2017
  • 하천에서 평수기 유량측정은 도섭법을 이용하기 위한 지점식 측정보다는 초음파 도플러 유속계(ADCP, Acoustic Doppler Current Profiler)를 보트에 탑재하여 운용하는 측정 방식이 점차 일반화되고 있다. ADCP는 초음파의 도플러효과를 이용하여 수심이나 횡방향의 유속 분포를 측정할 수 있는 측정 장비로 일반적으로 사용되는 down-looking ADCP는 수심방향의 유속분포와 수심을 측정하여 보트의 이동속도와의 벡터 내적을 이용하여 유량을 산정하게 된다. 그러나, 이동식 ADCP 유량 측정 성과의 불확도는 제공되지 않고 있는 상황인데, 이는 불확도 산정 표준안 미비, 유속 및 수심 등 측정 요소의 관측 환경 별 불확도 정보 부족, 불확도를 산정할 수 있는 툴의 부재 등에 기인한다. 본 연구에서는 이동식 ADCP 불확도 산정 표준안을 개발하고 현장 실험을 통해 불확도 요인에 대한 규명, 불확도를 편리하게 산정할 수 있는 툴을 개발하고자 하였다. 불확도 산정 표준안으로 최근 WMO를 위시한 국제적으로 하천 유량 측정 불확도 표준안으로 채택되고 있는 GUM(Guide to the Expression of Uncertainty Measurement)을 기반으로 이동식 ADCP 유량 산정 알고리즘을 적용하여 불확도 적용 기법을 개발하였다. GUM 표준안을 기반으로 유량 측정불확도를 산정하기 위한 불확도 요인분석은 실규모 하천의 특성을 대부분 모의할 수 있는 한국건설기술연구원의 안동하천실험센터에서 수행된 실험자료를 기반으로 다양한 인자들에 대한 요소 별 불확도 분석을 수행하였다. GUM 표준안에 의하면 불확도 요인들은 오차전파의 법칙에 기반하여 전체 불확도에 전파되며, 이렇게 합성된 불확도는 t-분포의 신뢰수준 95%일 경우의 보정계수 2를 곱하여 최종적으로 확장불확도를 산정하게 된다. 이동측정방식의 ADCP의 경우 GUM 표준안에 적용하여 불확도를 평가하기 위해서 사용되는 수식이 방대하고, 매우 복잡하기 때문에 이를 실무자가 평가하기에는 한계가 있다. 이에 따라 본 연구에서는 ADCP의 유량 측정불확도를 보다 편리하게 평가하기 위하여 ADCP 유량 측정불확도 평가 소프트웨어인 AQUA(ADCP Discharge Uncertainty Assesment)를 개발하였으며, 이를 통해 실무자나 연구자들이 ADCP의 불확도 평가에 보다 편리하게 접근할 수 있을 것이라 판단된다.

  • PDF

The Effects of Korean Teachers' Physical Activity on Job Burnout (한국 교사들의 신체활동이 직무탈진에 미치는 영향)

  • Nam, Yoon Ho
    • Journal of the Korea Convergence Society
    • /
    • v.10 no.6
    • /
    • pp.325-335
    • /
    • 2019
  • The purpose of this study is to determine the impact of physical activity on relieving job burnout among teachers in Korea. To examine this impact, 527 Korean teachers were used in the data analysis. An exploratory factor analysis and internal consistency analysis were employed to verify the validity and reliability of the Maslach Burnout Inventory (MBI-ES), and a t-test and one-way ANOVA were conducted to find the mean differences according to gender, school level, and length of teaching experience. The impact between factors was also verified through correlation and regression analyses. The results of the analyses showed that first, female teachers and teachers with less teaching experience had higher degree of burnout and fewer physical activities compared to male teachers and teachers with longer teaching experience, respectively. Second, teachers' level of moderate-to-vigorous physical activity (MVPA) was negatively correlated with burnout factors. Third, teachers' vigorous physical activity negatively affected depersonalization factors while teachers' sedentary activity positively affected depersonalization factors.

Effects of Aromatherapy on Stress and Mood of Junior Nursing Students during Clinical Practice (아로마 요법이 임상실습 중 간호대학생의 스트레스와 기분에 미치는 영향)

  • Park, Soohyun
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.19 no.12
    • /
    • pp.71-79
    • /
    • 2018
  • The purposes of this study were to identify the stress level of nursing students prior to clinical training and to examine the effects of aromatherapy on stress, stress perception, and mood during clinical practice. This study was a randomized control trial using a pre-post test conducted from May-July 2016. A total of 41 junior nursing students were recruited. The experimental group (n=22) underwent aroma inhalation using a necklace containing lavender essential oil and a control group (n=19) used a normal saline necklace. There were significant improvements in stress (p=.023) and mood levels in the experimental group (p=.006). The difference in stress perception between the experimental and control groups was not statistically significant (p=.382). Aroma therapy might be useful for decreasing stress and improving their positive mood during clinical practice for nursing students.

Development of Sports Ethics Consciousness Scale for Preventing Fixing Game (승부조작 예방을 위한 스포츠 윤리의식 척도개발)

  • Kwon, Ki-nam;Lee, Jung-Rea;Lee, Hyuck Gi
    • 한국체육학회지인문사회과학편
    • /
    • v.58 no.4
    • /
    • pp.127-138
    • /
    • 2019
  • The purpose of this study was to develop sports ethics consciousness scale for preventing fixing game, based on foreign data but considering the actual conditions of Korea. Respondents were elite sports athletes from D-city. This study was conducted on 304 elite sports athletes from middle, high school and college students selected by purposeful sampling, for three months from May to July 2018. In the date analysis stage, the descriptive statistic analysis was performed for understanding the item characteristic and the internal consistency coefficient(α), the exploratory factor analysis and the confirmatory factor analysis were perforned for analysing the credibility, the validity. There were five sub-factors of sports ethics consciousness scale, consisting of ethics of autonomy, ethics of collectivism, ethics of common good, ethics of dignity, and ethics of productivity, which were identified through 23 questions. It was proved that the scale have enough suitability (χ2=420.151, df=220, p=.000, GFI=.996, NFI=.979, TLI=.960, CFI=.978, RMSEA=.055).

The Artificial Intelligence Literacy Scale for Middle School Students

  • Kim, Seong-Won;Lee, Youngjun
    • Journal of the Korea Society of Computer and Information
    • /
    • v.27 no.3
    • /
    • pp.225-238
    • /
    • 2022
  • Although the importance of literacy in Artificial Intelligence (AI) education is increasing, there is a lack of testing tools for measuring such competency. To address this gap, this study developed a testing tool that measures AI literacy among middle school students. This goal was achieved through the establishment of an expert group that was enlisted to determine the relevant factors and items covered by the proposed tool. To verify the reliability and validity of the developed tool, a field review, exploratory factor analysis, and confirmatory factor analysis were conducted. These procedures resulted in a testing tool comprising six domains that encompass 30 items. The domains are the social impact of AI (eight items), the understanding of AI (six items), AI execution plans (five items), problem solving with AI (five items), data literacy (four items), and AI ethics (two questions). The items are to be rated using a five-point Likert scale. The internal consistency of the tool was .970 (total), while that of the domains ranged from .861 to .939. This study can serve as reference for developing the analysis of AI literacy, teaching and learning, and evaluation in AI education.

Verification of The Effectiveness of Brand Identity of Youth Soccer Club in Korea (국내 유소년 축구클럽 브랜드 아이덴티티의 효과성 검증)

  • Jin-Ho Shin
    • Journal of the Korean Applied Science and Technology
    • /
    • v.40 no.2
    • /
    • pp.301-308
    • /
    • 2023
  • This study sought to provide basic data for soccer clubs to establish efficient brand strategies by verifying the structural model and effectiveness between domestic youth soccer club brand identity, value, and loyalty. Therefore, parents of members of youth soccer clubs in Seoul, Gyeonggi-do, and Chungcheong-do were selected as samples, and 372 copies of data were used for the final analysis. Data processing used the SPSS (ver. 21.0) program to analyze frequency and verify reliability. In addition, the brushstrap BC method was applied to verify the effectiveness and significance of confirmatory factor analysis, correlation analysis, structural equation model analysis, and the effectiveness and significance using the AMOS (ver. 20.0). As a result of the study, first, it was found that the brand identity of youth soccer club in Korea had significant effect on value. Second, value had significant influence on loyalty. Third, brand identity had significant influence on loyalty. Lastly, value between brand identity and loyalty showed partial mediated effect.

The relations among Sensitivity Intelligence, Self-managment and Self-reflection of the Athlete (운동선수의 자기관리와 자기성찰 및 감성지능의 관계)

  • Choi, Mi-Lan
    • 한국체육학회지인문사회과학편
    • /
    • v.54 no.3
    • /
    • pp.231-242
    • /
    • 2015
  • The purpose of this study is to verify relationship between self-management and self-reflection for grasping athletes' emotional intelligence in deviation environment. The subjects of this study were selected 200 athletes who have a Nationwide Sport Meeting among athletes of being registered in the association as an athlete. The Descriptive Statistical Analysis Correlation Analysis and Regression Analysis As a result, Frist, training-management which is has direct effect on self-probe, personal relation/body-management which is on other-understand, behavior-management which is indirect effect on other-probe, body-managment which is on others-probe, mental power-management which is direct effect onself-understand. Second, mental power/body-management which is direct effect on self-sensitivity recognize, mental power/living-management which is direct effect on sensitivity application, mental power-management which is direct effect on others-sensitivity recognize, mental power/personal relation-management which is direct effect on sensitivity control.

A Delphi study on the Needs for the Development of a Customized Support Program based on Augmented Reality for Preterm infants and their Families (미숙아와 가족을 위한 증강현실(AR) 기반 맞춤형지지 프로그램 개발 요구분석을 위한 델파이 연구)

  • Sin, Jae Eun;Kim, Ah Rim
    • Proceedings of the Korean Society of Computer Information Conference
    • /
    • 2022.01a
    • /
    • pp.49-51
    • /
    • 2022
  • 본 논문에서는 신생아집중치료실에 입원한 미숙아와 가족 대상의 증강현실(Augmented Reality [AR])기반 맞춤형지지 케어 프로그램 개발에 필요한 관련 전문가 합의를 도출한 델파이 조사 연구이다. 3D 콘텐츠를 적용한 프로그램 개발에 필요한 핵심 구성요소 혹은 교육 콘텐츠를 발굴하여 개발의 방향성을 제안하기 위한 델파이 분석에, 미숙아 및 전문가 집단 14명(1차)과 113명(2차)이 본 연구에 참여하였다. 각 델파이 집단에서 수집된 반응들의 분석 결과, 4개의 하위영역(AR 프로그램의 필요성 및 가치(장점), AR 기반 프로그램 도입과 적용 시 고려할 점, AR 기반 전인적 e케어 프로그램 도입 시 요구와 전략적 방안, 입원 초기부터 퇴원 전 단계별 지지케어 위한 3D 콘텐츠 개발 우선순위)이 분류되었으며, 총 57문항이 도출되었다. 입원 초기부터 퇴원 전 단계별 지지케어 위한 3D 콘텐츠 개발 요구도와 우선순위에 있어서는, 부모 경우 신생아 케어의 반복적 체험 훈련 통한 부모 교육, 아기 본연의 독특하고 고유한 캐릭터나 습관 및 특성 관련 정보 공유, 발달을 돕는 양육 또는 놀이 교육, 가족 요구 기반 특수 간호 기술 훈련 등의 항목의 우선순위가 높았다. 한편, 전문가의 경우 건강한 부모역할로의 이행을 돕기 위한 심리사회적지지, 부모-아기 간 단절 최소화, 미숙아 발달 관련 정보 및 양육 또는 놀이 정보 공유, 부모-아기 상호작용 기회 제공 등으로 요구도의 우선순위가 높았다. 본 연구에서 개발된 델파이 평가문항의 내적일관성 신뢰도를 분석한 결과, Cronbach's α .89~.94로 높았고, 타당도와 문항 구성이 적절한 것으로 나타났다. 본 연구의 결과들을 바탕으로, 미숙아와 가족을 위한 AR 기반 맞춤형지지 케어 프로그램 개발의 적합성이 검증되었고, 프로그램의 임상적, 기술적, 사용적 가치에 있어서 고려할 사항과 교수매체로서 부모와 전문가 집단이 요구하는 3D 콘텐츠 우선순위를 바탕으로 효과적인 기획 및 설계의 근거를 확보했다는 점에서 의의가 있다.

  • PDF

Structural Model between Golf wear Brand Authenticity and Brand Attachment and Loyalty (골프웨어 브랜드 진정성과 브랜드 애착 및 충성도 간의 구조적 모형)

  • Jin-Ho Shin
    • Journal of the Korean Applied Science and Technology
    • /
    • v.39 no.6
    • /
    • pp.824-830
    • /
    • 2022
  • This study attempted to provide basic data on the golf wear brand strategy plan by verifying the structural model between golf wear brand authenticity, brand attachment, and loyalty. Therefore, subjects with experience in purchasing golf wear over the past 12 months were selected as samples, and 292 copies of data were used for final analysis. As for the data processing method, frequency analysis, internal consistency of reliability, confirmatory factor analysis of validity, correlation analysis and structural equation model analysis were conducted. The program utilized SPSS (ver. 21.0) and AMOS (ver. 20.0). As a result of the study, first, it was found that the brand authenticity of golf wear had significant effect on brand attachment. Second, brand attachment of golf wear had significant influence on loyalty. Third, brand authenticity of golf wear had significant influence on loyalty. Lastly, brand attachment between golf wear brand authenticity and loyalty showed partial mediated effect.