• 제목/요약/키워드: Methodological design

검색결과 337건 처리시간 0.023초

생태계에 대한 학습발달과정의 개발과 평가 (Developing and Assessing a Learning Progression for the Ecosystem)

  • 여채영;이효녕
    • 한국과학교육학회지
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    • 제36권1호
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    • pp.29-43
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    • 2016
  • 미국과 유럽의 여러 국가에서 과학의 학문 내 핵심 개념을 중심으로 과학 교육과정을 재구성하려는 노력이 시도되고 있으며 그 중 대표적인 변화가 학습발달과정을 이용한 교육과정을 설계하는 것이다. 학습발달과정은 과학의 핵심 개념과 과학적 활동과정을 논리적이며 단계적으로 정교하게 기술한 틀로서 학생이 학습하는 동안 연속적이며 체계적으로 확립되어 가는 이해의 과정을 설명한다. 미국의 차세대과학기준(NGSS)에서 제시한 생명과학 핵심 개념 중 하나인 생태계에 관하여 학습발달과정을 개발하고 개발된 학습발달과정을 평가하고자 하였다. 이를 위해 학습발달과정에 대한 문헌 연구를 통해 개발 절차를 Development, Assessment, Analysis, Amendment의 네 단계로 설정하고 순차적이며 반복적인 과정을 통해 생태계에 관한 학습발달과정을 개발하였다. 그리고 개발된 학습발달과정의 분석 결과 학습 발달과정에 기반을 둔 평가는 학생의 능력을 파악하는데 신뢰할 수 있는 정보를 제공한다는 결론을 도출하였다. 이를 통해 학습발달과정의 개발 과정에 효과적인 방법으로 핵심 성취기준을 이용한 Framework의 개발, OMC 문항 형식과 Rasch 모델을 이용한 평가와 분석 과정을 제안한다. 또한 경험적으로 검증된 학습발달과정을 이용하여 교육 내용, 교육 방법, 교육 평가가 연계된 교육과정 강화 방안을 제안한다. 국내 학습발달과정에 대한 연구가 부족한 시점에 이 연구를 통해 제안된 학습발달과정 개발 절차를 활용하여 학습발달과정의 개발에 수월성을 제공하고, 개발된 학습발달과정의 적용으로 교육과정의 표준과 방향을 제시할 수 있을 것이다.

고위험가족 선별을 위한 위험요인 분석 (The factors to identify high risk family)

  • 방숙명
    • 대한간호학회지
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    • 제25권2호
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    • pp.351-361
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    • 1995
  • The main purpose of the study is to identify critical risk factors for development of a family assessment tool to screen high risk family. This study used a conceptual framework of family diagnosis developed by Eui-sook Kim's (1993) and analyzed risk factors to identify the high risk family. As employing a explorative and methodological study design, this study has four stages. 1. In the first stage, 34 family risk factors were identified by doing intensive literature review on conceptual framework of family diagnoses. 2. In the second stage, above risk factors were tested for content validity by consultation with 29 persons in community health nursing, nursing education, family theory, and social work. 3. In the third stage, existing survey data was used for actual application of the identified risk factors. The survey data used for this purpose was previously collected for the community diagnosis in a region of Seoul. At the final stage, through the comparison between high risk and low risk families, initially identified 34 risk factors decreased to 25 risk factors. Among 34 risk factors, six factors did not agree with content of questionnaries sand two factors were not significant in differentiating the high risk family Also, two risk factors showed high correlation between themselves, so only one of those two factors was chosen. As a result, twenty-five risk factors chosen to identify the high risk family are following ; 1. A single parent family due to divorce or death of a partner, or unweded single mother 2. A family with an unrelated household members 3. A family with a working mother with a young child 4. A family with no regular income 5. A family with no rule in family or too strict rules 6. A family with little or no support from other lam-ily members 7. A family with little or no support from friends or relatives 8. A family with little or no time to share with each other 9. A family with family history of hypertension, diabetus, cancer 10. A family with a sick person 11. A family with a mentally ill person 12. A family with a disabled person 13. A family with an alcoholic person 14. A family with a excessive smoker who smokes more than 1 pack / day 15. A family with too much salt intake in their diet. 16. A family with inappropriate management skills for family health 17. A family with high utilization of drug store than hospital to solve the health problems of the family 18. A family with disharmony between husband and wife 19. A family with conflicts among the family members 20. A family with unequal division of labor among family members 21. An authoritative family structure 22. A socially isolated family 23. The location of house is not residential area 24. A family with high risk of accidents 25. The drinking water and sewage systems are not hygienic. The main implication of the results of this study is clinical use. The high risk factors can be used to identify the high risk family effectively and efficiently. The use of high risk factors woule contribute to develop a conceptual framework of family diagnosis in Korea and the list of risk factors need to be revised continuously. Further researches are needed to develop an index of weight of each risk factor and to validate the risk factors.

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통증 개념을 다룬 국내 간호 연구 분석 (An Analysis of Nursing Research on Pain Reported in Korea from 1970 to 1994)

  • 박정숙;박청자
    • 대한간호학회지
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    • 제25권1호
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    • pp.30-44
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    • 1995
  • This study aimed at analyzing the trend of re-search on pain in Korea, suggesting direction future pain research, and contributing to the use of pain interventions in nursing practice. Research studies on pain were selected from journals of medical and nursing schools, the Korean Nurse, the Korean Nurses' Academic Society Journal, the Central Journal of Medicine, the New Medical Journal, and from theses and dissertations, which were conducted between 1970 and 1994. The total number of the studies was 93. These studies were analyzed for 1) time of publication or presentation, 2) thesis for a degree or nondegree, 3) research design, 4) characteristics of subjects used in each study, 5) measurement tool, 6) types of correlated variables, 7) Korean terms for pain 8) types of nursing interventions, and 9) results of studies. The findings of the analysis can be summerized as follows : 1) The number of studies related to pain has increased rapidly since the early 1980's. The number of experimental research studies related to pain has increased chronologically, but the number of survey research studies related to pain was highest from 1981 to 1985, after that it decreased slowly. 2) The subjects in 19 studies were healthy people and, in 73 studies, patients with various illnesses. Thirty two studies were conducted with surgical patients. 3) Sixty one pain research studies were done for a thesis for a degree and 32 were nondegree research studies. 4) As measurement tools for pain, self- report pain scales were used in 54 studies and more than two tools were used in 28 studies. In the experimental studies, the trend was to use more than two tools. And in the nonexperirnental studies, the trend was to use self-report pain scales only. 5) There were 11 correlational studies. In these studies, the trend was to study anxiety, depression and variables such as intravenous infusion as related to pain.6) In the thirty six experimental studies, the effects of 16 types of nursing interventions weretested. Teaching and information, and relaxation technique were the most popular interventions for pain. 7) In eighteen methodological studies, the majority were studies testing the validity and re-liability of Dr. Lee's Korean Pain Rating Questionnaire. The following suggestions are made based on the above findings : 1) The patterns of these studies related to pain in Korea need to be compared with trends in other countries. 2) Meta - analysis should be done to analyze and integrate the results of various studies. 3) This analysis of pain research is needed to identify the present trend of pain research and to suggest the direction of future pain research, so these patterns of studies should be done in 5 to 10 year intervals. 4) More replicated pain research is needed to prove the effect of nursing interventions and more qualitative research on pain is needed to identify indepth the meaning of pain. 5) Pain researchers should make an effort to apply research result in various clinical settings and try to carry out team research with clinical nurses or with other multidiscipinary researchers.

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진동수주 파력발전장치를 위한 머신러닝 기반 압력 예측모델 설계 및 분석 (A Design and Analysis of Pressure Predictive Model for Oscillating Water Column Wave Energy Converters Based on Machine Learning)

  • 서동우;허태상;김명일;오재원;조수길
    • 한국산학기술학회논문지
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    • 제21권11호
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    • pp.672-682
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    • 2020
  • 최근 다양한 산업/제조 현장에서 운영 효율화를 위한 디지털 트윈(digital twin) 기술 연구가 활발하게 수행 중이고, 화석 연료의 점진적 고갈과 환경오염 문제는 파력발전소와 같은 신재생/친환경 발전방식을 요구한다. 하지만, 파도의 에너지에 의해서 전기를 생산하는 파력발전에서 변동성이 높은 파도에너지에 의해서 발전량과 고장 등의 운영효율화 요소가 밀접하게 관련되어 있어 이들 사이의 관계를 이해하고 예측하는 것이 매우 중요하다. 따라서 첫 번째로 파고 데이터, 진동수주(OWC: Oscillating Water Column, 이하 OWC) 챔버의 센서 데이터 등과 같은 변동성이 높은 데이터 간에 의미 있는 상관관계 도출이 필요하다. 두 번째로 도출된 상관관계를 기반으로 추출된 데이터로 예측 상황을 학습함으로써 원하는 정보를 예측할 수 있는 방법론 연구가 이루어져야 한다. 본 연구에서는 파력발전 시스템의 디지털 트윈으로 스마트 운용 및 유지보수가 가능하도록 실제 파력발전소의 IoT 센서 데이터를 이용하여 OWC의 압력 예측을 위해 머신러닝 프레임워크를 활용한 워크플로우 기반의 학습모델을 설계하고, 검증 및 평가 데이터셋을 통한 압력 예측분석의 유효성을 확인한다.

화병의 한의학적 치료에 대한 연구동향 (Current Trends in Intervention Studies of Hwabyung in Korean Medicine)

  • 서효원;최은지;김상호;김동희;김락형;김종우;이재혁;임재환;최우진;정선용
    • 동의신경정신과학회지
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    • 제27권4호
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    • pp.261-274
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    • 2016
  • Objectives: To determine the general characteristics of clinical studies about Hwabyung and assess their limitations and alternatives. Methods: Clinical studies that examined the effects of traditional Korean medicine intervention on Hwabyung were included in this study. A systematic search of English, Chinese, Japanese, and Korean databases was performed. The characteristics of included articles were described and those articles were assessed by Risk of Bias (RoB) tool or Risk of Bias for Nonrandomized Studies (RoBANS) tool. Results: Sixteen articles were selected from 1,826 articles. Most clinical studies about Hwabyung were published in Korea. The number of conducted trials was insufficient. The prevailing study design was randomized controlled trial. Traditional Korean medicine intervention used in the trials were acupuncture, herbal medicine, counselling, meditation, emotional freedom technique (EFT), music therapy, art therapy, and multi intervention program. Herbal medicine study used placebo as control while non-pharmacological intervention study mostly used no treatment as control. Most of the trials were supported by the government. Therefore, financial conflict of interest might not exist for results. We judged that some studies had a high risk of bias. In general, most of the studies with a high risk of bias were non-pharmacological intervention studies, and the risk of bias was mainly due to lack of blinding. Conclusions: More clinical studies of Hwabyung are needed. There are some issues about a suitable comparison and effective blinding strategy for non-pharmacological study. Improving methodological quality is required.

브랜드 사랑 구성개념에 대한 연구 (A Study of Concepts on the Brand Love)

  • 민귀홍;박범순
    • 한국콘텐츠학회논문지
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    • 제20권8호
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    • pp.315-326
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    • 2020
  • 강력한 브랜드 구축을 위해 최근 브랜드 사랑에 대한 연구가 활발해지고 있다. 그러나 브랜드 사랑이 다차원적 구성개념이라는 것과 그것을 측정하기 위한 척도개발에 대한 일관성 있는 연구결과는 부족한 현실이다. 이에 본 연구는 Churchill(1979)과 DeVellis(1991)의 방법적 연구디자인을 기반으로 브랜드 사랑 속성을 탐구하여 '감성(emotion)'과 '관계(relationship)'의 두 가지 차원으로 분류하고 그에 따른 측정항목을 개발하였다. 이를 위해 문헌고찰과 개방형 설문조사, 심층 인터뷰 등의 사전조사와 단계별 요인분석이 진행된 본 조사 과정 등 총 8단계로 나누어 연구를 진행하였다. 연구결과 브랜드 사랑은 감성과 관계의 두 차원으로 구성되었음을 확인하였다. 감성 차원은 19개 항목으로 구성된 5개 하위요소(자존심, 따뜻함, 흥미, 책임감, 즐거움)로 관계 차원은 11개 항목으로 구성된 3개 하위요소(불변, 공유/지지, 이해) 로 구성되었다. 브랜드 사랑을 측정하기 위한 항목은 신뢰도, 수렴 및 판별타당도, 이해타당도를 갖춘 최종 30항목이 도출되었다. 이를 바탕으로 본 연구는 브랜드 사랑 구성개념 간의 유기적 상호작용 결과 모델을 제시하고 그것을 기반으로 '브랜드 사랑 강도(strength) 4유형'을 제안하여 브랜드 사랑 관련 연구의 폭을 넓히고자 하였다.

대학생의 성적 자율성 측정도구 개발 (Development of Sexual Autonomy Measurement for College Students)

  • 장순복
    • 여성건강간호학회지
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    • 제8권1호
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    • pp.106-115
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    • 2002
  • Little is known about sexual autonomy in the light of human sexual health or sexual behavior. The purpose of this study was to increase understanding of sexual autonomy by developing a scale to measure sexual autonomy in college students. The measure was based on the perspective of human beings as having autonomy. A methodological developmental design was used. The study was done in three steps and included concept development through content analysis of relevant literature individual interviews using open-ended questions with 19 college students, item analysis of data from self report questionnaires for item to total correlation, content validity index by professionals and college students, and factor analysis with principal component analysis. Three groups participated in testing the measurement scale; Group A in 1998, a nationwide convenience sample of college students (n=1,163), Group B, college students in 1999 (n=233), and Group C, college students in 2000 who responded to the measurement scale before and after a sex education program (n=216). A series of exploratory and confirmatory factor analyses were conducted to test validity. For analysis of the questionnaires, statistical methods including reliability (test-retest), item to total analysis, content validity, factor analysis for construct validity and t-test for mean difference according to gender, sexual coitus, previous sex education, and pre-post experiment sex education were used with SPSS 10.0. Results: 1. Two stable factors were extracted and these contributed 48.05% of the variance in the total score. All 13 items loaded above .40 on each factor. 2. Factor I with 10 items was named 'control' and factor II with 3 items and was named 'coping'. 3. Differences in sexual autonomy scores for college students according to their experience showed that there were significantly higher scores for sexual autonomy in the post sex education group(t=-10.841, p=.000), but there were no differences according to whether or not they had previous sex education. Female college students had higher sexual autonomy scores than male college students in A or B group (t=-5.933, p=.000/ t=-1.992, p=.048). 4. Cronbach's $\alpha$ was .8603 for the total 13 items with 1,632 college students, .8739 with 232 students, .8333$\sim$.7647 with pre-post sex education with 216 students. This measurement was found to have a high validity and reliability for measuring sexual autonomy in college students. Therefore, the author recommends that it be used to measure the effects of sex education. It is suggested that further study is needed to analyze the relationship between sexual autonomy and sexual behavior.

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Association Between Gestational Diabetes Mellitus and Subsequent Risk of Cancer: a Systematic Review of Epidemiological Studies

  • Tong, Gui-Xian;Cheng, Jing;Chai, Jing;Geng, Qing-Qing;Chen, Peng-Lai;Shen, Xin-Rong;Liang, Han;Wang, De-Bin
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권10호
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    • pp.4265-4269
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    • 2014
  • Purpose: This study aimed at summarizing epidemiological evidence of the association between gestational diabetes mellitus (GDM) and subsequent risk of cancer. Materials and Methods: We searched Medline, Embase, Cancer Lit and CINAHL for epidemiological studies published by February 1, 2014 examining the risk of cancer in patients with history of GDM using highly inclusive algorithms. Information about first author, year of publication, country of study, study design, cancer sites, sample sizes, attained age of subjects and methods used for determining GDM status were extracted by two researchers and Stata version 11.0 was used to perform the meta-analysis and estimate the pooled effects. Results: A total of 9 articles documented 5 cohort and 4 case-control studies containing 10,630 cancer cases and 14,608 women with a history of GDM were included in this review. Taken together, the pooled odds ratio (OR) between GDM and breast cancer risk was 1.01 (0.87-1.17); yet the same pooled ORs of case-control and cohort studies were 0.87 (0.71-1.06) and 1.25 (1.00-1.56) respectively. There are indications that GDM is strongly associated with higher risk of pancreatic cancer (HR=8.68) and hematologic malignancies (HR=4.53), but no relationships were detected between GDM and other types of cancer. Conclusions: Although GDM increases the risk of certain types of cancer, these results should be interpreted with caution becuase of some methodological flaws. The issue merits added investigation and coordinated efforts between researchers, antenatal clinics and cancer treatment and registration agencies to help attain better understanding.

국내 한식당의 서비스 품질과 관련된 연구 논문의 경향 분석 - 2000~2008년 학술지에 수록된 연구를 중심으로 - (Research Trends in the Service Quality of Korean Restaurants - Centering on the Researches in Academic Journals from 2000 to 2008 -)

  • 정효선;송민경;이선령;윤혜현
    • 한국조리학회지
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    • 제15권3호
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    • pp.356-372
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    • 2009
  • 본 연구에서는 국내 식품, 조리, 외식, 관광 관련 대표 학술지에 게재된 한식당의 서비스 품질 관련 논문 분석을 통해서 한식당 서비스 품질 연구의 학문적 경향을 고찰하고자 하였다. 연구 결과, 선정된 7개의 학술지에 게재된 한식당 서비스 품질 관련 연구는 2000~2008년 동안 총 26편이었으며, 그 중 100석 이상 규모의 중 대형 전문한식당을 대상으로 한 연구가 14편을 차지하였다. 방법론적인 측면에서 한식당의 서비스 품질 측정에 가장 빈번하게 사용된 척도는 Parasuraman et al.(1988)의 SERVQUAL, Stevens et al.(1995)의 DINESERV, Brady & Cronin(2001) 등의 척도로 나타났다. 내용적인 측면에서 한식당의 서비스 품질과 관련된 연구 동향을 고찰한 결과, 고객의 인지된 서비스 품질 중 직원과 고객 간의 상호작용 품질이 물리적 품질이나 전문적 품질보다 고객의 행동 반응에 더 큰 영향력을 지니는 것으로 조사되었다. 이러한 결과를 통해, 한식당 서비스 품질 고찰을 통한 제도적 연구를 위해서는 체계적으로 검증된 척도로써 고객의 인지된 서비스 품질을 파악하는 것이 우선적으로 시행되어야 하며, 연구 방법론에 있어서도 다양성을 모색하고, 연구 주제에 적합한 연구 방법을 시도해야 할 것으로 판단된다. 또한, 국내 한식당 서비스 품질과 관련된 대부분의 연구들이 고객의 인지된 서비스 품질과 만족도, 행동 의도의 인과관계 고찰과 같은 특정 주제에 집중된 경향을 보이고 있었으므로, 이러한 경향에서 벗어나기 위해서는 창의적인 연구 주제를 발굴하고 다양하고 과학적인 분석방법을 설계하는 것이 필요할 것으로 여겨진다.

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방사선의 대국민 인식도 분석: 일본 후쿠시마 원전 사고 1주년 계기 (Analysis of Public Perception on Radiation: with One Year after Fukushima Nuclear Accident)

  • 박방주
    • Journal of Radiation Protection and Research
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    • 제37권1호
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    • pp.1-9
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    • 2012
  • 2011년 3월 11일 발생한 일본 후쿠시마 원전 사고 1주년을 계기로 한국 국민의 방사선 인식도를 조사하고자 하였다. 연구 방법론적 설계는 양적 조사로 하고, 빈도 분석을 하였다. 분석 대상은 전국에서 무작위로 추출한 일반인으로부터 수거한 설문 응답지 2754부이다. 연구 도구는 설문지이며, 직접 배포한 뒤 수거하였다. 설문은 40문항으로 구성하였으며, 하위영역별 크론바하 알파(Cronbach's ${\alpha}$) 계수는 '방사선의 자아인식' 0.620, '방사선의 위험' 0.830, '방사선의 편익' 0.781, '방사선의 관리' 0.685, '방사선의 정보원' 0.831, '후쿠시마 사고의 영향 정도' 0.763으로 모두 높게 나타났다. 설문 분석 결과 응답자의 방사선 개념에 대한 지식은 100점 만점 환산 평균 69.5점이며, 이는 자신들이 '방사선에 대해 잘 알고 있다'고 응답한 비율 53.7%, '보통 알고 있다'는 응답이 37.4%인 것과는 상당히 다른 결과다. '방사선이 위험하다'고 느끼는 중요 원인 중 하나는 '방사선에 노출되면 지금은 아니더라도 다음 세대에 문제가 생길 수 있기 때문'(66.1%)으로 분석됐다. 방사선에 대한 정부 발표를 믿지 못하는 응답자가 41%에 이르러 정부에 대한 불신이 높았다. 후쿠시마 원전 사고 때문에 원전을 운영하지 말아야 한다는 쪽으로 생각을 바꾼 응답자도 39.5%나 됐다. 본 연구는 후쿠시마 원전 사고 이후 방사선에 대한 한국 국민의 인식을 처음 조사한 것으로 그 의의가 크다. 향후 방사선에 대한 정부의 정책 수립에도 크게 기여할 것으로 기대된다.