• 제목/요약/키워드: Difficulty Score

검색결과 285건 처리시간 0.028초

대학생들의 영어자음 인지 연구 (A Study of English Consonants Identified by College Students)

  • 양병곤
    • 음성과학
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    • 제12권3호
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    • pp.139-151
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    • 2005
  • Previous studies have shown that Korean students have difficulty identifying some English consonants which are not in the Korean sound inventory. The aim of this study was to examine the accuracy rate of English consonants correctly identified by 130 college students in order to find out which English consonants were difficult for the students to perceive. The subject's task was to identify one of the minimal pairs played in a quiet laboratory classroom. 100 minimal pairs consisted of syllables with various onsets or codas: stops, fricatives, affricates, liquids and nasals. Results were as follows: First, the average score of the English major group was significantly higher than that of the non-English major group. Second, there was a similar distribution in the rank order of minimal pairs sorted by the accuracy rate between the two groups. Third, the accuracy rate systematically decreased as each score range decreased. Fourth, the students showed higher accuracy in the perception of liquids than that of the stop-fricative contrast. Fifth, the accuracy score in onset position was higher than in coda position. Finally, the students still had problem telling voiced consonants from voiceless ones, especially in coda position. It would be desirable to extend the present research to middle or high school students to fundamentally resolve those listening problems.

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초등과학영재교육원의 선발 문항 분석 (Item Analysis for Selecting Science Gifted Elementary School Student)

  • 임춘우
    • 과학교육연구지
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    • 제34권1호
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    • pp.155-163
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    • 2010
  • 이 연구의 목적은 본 연구는 영재선발도구로서 지필 검사 문항의 적합성에 대한 검토를 위해 초등과학영재교육원의 학생 선발에 지난 3년간 사용된 지필 검사 문항들을 대상으로 문항 분석을 하여, 영재교육 대상자 선발 방법에 대한 새로운 전형방식에 주는 교훈을 얻기 위하여 실시하였다. 문항 분석 결과, 평균 문항 난이도와 변별도는 대체로 양호한 편이었으며, 교과 및 내용별로도 큰 차이가 없는 것으로 분석되었다. 서술형 문항이 객관형 문항에 비해 어렵게 출제되었으며, 변별력이 높았던 것으로 분석되었다. 특정 문항들과 총점과의 상관관계에서 객관형 문항의 경우는 물질 문항과, 자료변환 및 자료해석 문항에서 가장 높은 상관이 나타났으며, 서술형 문항의 창의성 문항이 총점과의 상관이 가장 높은 것으로 분석되었다. 선발 시험에 응시한 학생들의 성별의 따른 차이를 t 검증으로 분석한 결과, 자료변환 및 자료해석과 창의성에서 남학생의 평균이 유의미하게 높은 것으로 나타났다.

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Activities-Specific Balance Confidence(ABC)척도에 대한 라쉬분석의 적용 (Application of Rasch Analysis to the Activities-Specific Balance Confidence (ABC) Scale)

  • 황수진;이충휘;박소연
    • 한국전문물리치료학회지
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    • 제14권1호
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    • pp.37-45
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    • 2007
  • This study was designed to examine, applying Rasch analysis based on item response theory, the questionnaires of the Activities-Specific Balance Confidence (ABC) scale for the elderly. The subjects were 99 institutional older adults and clients of social welfare facilities. The subjects (17 men, 72 women) ranged in age from 65 to 94 years (mean age 76.5 yrs). The Winsteps software was used to assess whether the ABC scale fits the Rasch model, to estimate the score and to refine the rating scale. The results are as follows. Twenty-two subjects were excluded as misfit persons. Four items were found to be misfits and the order of difficulty of the remaining 12 items was rearranged. Their balance confidence is indicated by -.64~1.12 logit, and the transformation formula is score=[(logit score+2.76)/(2.76+3.48)]${\times}$100. The most difficult item was "Walk outside in icy sidewalks" and the easiest item was "Walk around house." In conclusion, the ABC scale for the elderly has been proven reliable and valid. Therefore, it is expected to be used as an effective examination tool for treatment planning and screening for older adults.

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동작침법(M.S.T.)을 시행한 요추간판탈출증환자의 보행곤란 환자 치험 3례 보고 (The Clinical Report on 3 cases of the patient of extruded disc Treated with Motion Style Treatment)

  • 조재희;이효은;송주현;문자영;임명장;강인;장형석;박영은
    • 척추신경추나의학회지
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    • 제2권2호
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    • pp.131-140
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    • 2007
  • Objectives : the purpose of this study is to report the improvement of HIVD patients with gait difficulty, who treated by M.S.T(Motion Style Treatment) Methods : the clinical study was done on 3 cases of patients with disc extrusion, whose walking ability was not improved after the admission in Ja-Seng Oriental Medicine Hospital for a week. we checked the walking time and NRS score after the treatment of M.S.T(Motion Style Treatment) each day. Results : the walking time increased after the treatment of M.S.T(Motion Style Treatment). Whereas NRS score decreased after the treatment of M.S.T(Motion Style Treatment). after 2-3 weeks of treatment, 3 cases of patients could walk more than 20 minutes.

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한국판 버그 균형척도 평가도구의 라쉬분석 (Application of Rasch Analysis to the Korean Berg Balance Scale)

  • 이정아;이충휘;박소연;황수진
    • 한국전문물리치료학회지
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    • 제13권3호
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    • pp.49-56
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    • 2006
  • This study was designed to examine, using Rasch analysis, the rating scale performance of the Korean version of the Berg Balance Scale (BBS). The subjects were 95 elderly people at community dwelling. Subjects (19 men, 76 women) ranged in age from 65 to 91 years. Rasch analysis was then done by means of the Winsteps program to determine the validity and reliability of the Korean version of the BBS evaluation tools for elderly people. The results were as follows: Twenty-one elderly people were excluded for misfit persons. Three items were found to be misfits and the order of item difficulty of the remaining 11 items was arranged. Elderly people BBS ability is indicated by -.94~7.41 logit, and the transformation formula is score=(logit score+.94)/$(.94+7.41){\times}100$. This transformation formula can be applied to Korean elderly people for balance ability. In the order of difficulty of evaluation items, the most difficult item was "Standing on one foot" and the easiest item was "Standing to Sitting". In conclusion, the Korean version of BBS evaluation tool for the elderly people has been proved valid and will be useful in clinical practice and research in Korea.

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Therapeutic Potential of Atopy-camp: A pilot study

  • Lee, Nam-Ryul;Kim, Hyung-Geug;Seo, Kyoung-Suk;Son, Chang-Gue
    • 대한한의학회지
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    • 제31권6호
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    • pp.40-46
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    • 2010
  • Objective: This study investigated the therapeutic possibility of natural therapy in atopy-camp for children with atopic dermatitis. Methods: 30 children (19 boys and 11 girls, median age 11.5 years, ranging from 9 to 15) participated in natural environment-based activities in a camp-village located in Geumsan-gun for five days. Assessment of symptom change was conducted by self-reporting numeric scale (NRS) for pruritus and sleeping difficulty, investigator global assessment (IGA), eczema area and severity index (EASI score), serum histamine and IgE concentration before and after the camp period. Statistical significance was analyzed by paired t-test. Results: NRS for pruritus ($4.7{\pm}2.0$ into $4.3{\pm}2.1$), sleeping difficulty ($3.1{\pm}2.1$ into $2.9{\pm}2.0$), and serum histamine concentration ($4.27{\pm}7.39$ mol / L into $3.21{\pm}6.08$ mol / L) showed positive changes but didn't reach statistical significance (p > 0.05). IGA ($3.8{\pm}0.9$ into $4.13{\pm}1.0$), while EASI score ($10.8{\pm}9.7$ into $9.1{\pm}9.2$) and IgE ($408{\pm}320$ IU / mL into $385{\pm}3.8$ IU / mL) were significantly improved (p < 0.01). Conclusions: In spite of the limitation of the clinical trial protocol, this study may provide the possibility of natural environment-based therapy for children with atopic dermatitis.

비염의 평가 방법에 대한 제언 ; 비교 분석 및 설립 (Proposal on the Severity Scoring System of Rhinitis ; Comparison, Analysis and Establishment)

  • 황순이;황보민;임진호;지선영;김상찬;백정한;이상곤
    • 동의생리병리학회지
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    • 제20권1호
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    • pp.235-244
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    • 2006
  • There is much confusion in the field of Rhinitis regarding how to best measure disease severity objectively, Therefore, we aimed to establish a new adequate scoring system for Rhinitis, that should be based on comparison analysis of various scoring systems. We report as follows. We researched for data relating to severity scoring systems for rhinitis in Entrez PubMed from 1995 to 2005 and in Kiss Kstudy. Results and Conclusions: Properties of severity scoring systems were validity, sensitivity of change and ease of use. The essential items of severity scoring systems were subjective symptoms. The criterion of severity were divided into subjective symptoms and complication and Quality of Life. Intensity items are nasal obstruction, rhinorrhea, sneezing, itching, Postnasal drip, nasal mucosa swelling, nasal mucosa color, complication. Subjective symptoms is difficulty of Life. The significant items of severity scoring system are nasal symptoms. The whole score does with the maximum 30 scores. As it were, we assumed nasal symptoms accounted for around 80% of each total score, with complication and difficulty of Life representing 20%.

알고리즘 교육을 통한 비버챌린지 결과 분석 (Analysis of Bebra Challenge Results through Algorithm Education)

  • 박선주
    • 정보교육학회논문지
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    • 제23권1호
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    • pp.65-72
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    • 2019
  • SW 교육의 중요성이 증대되면서 학생들의 컴퓨팅 사고력 향상을 위한 연구가 활발하게 진행되고 있다. 본 논문에서는 비버챌린지 2018 체험하기와 도전하기 그룹III의 과제를 초등학교 5학년 55명을 대상으로 실시한 후 평균점수 비교, 스마트폰 보유여부, 컴퓨터 친숙도, 인내심, 집중도, 학업능력 요소와의 관련성 등을 분석하였다. 그 결과, 체험하기 점수에 비해 도전점수의 평균, 정답률, 난이도별 정답률 모두 높아졌고, 컴퓨터 친숙도, 인내심, 집중도가 높을수록 도전점수가 높아졌지만, 스마트폰 보유여부와 학업능력 요소는 점수에 영향을 미치지 않았다. 또한, 난이도가 어려운 과제에서는 인내심 요소가, 난이도가 보통인 과제에서는 컴퓨터 친숙도 요소가, 난이도가 쉬운 과제에서는 집중도 요소가 점수에 영향을 미쳤다. 따라서, 추후 분석대상과 그룹 범위를 넓혀 평가영역도 추가하여 분석할 필요가 있다.

디지털 영상자료를 통한 2018 아시안게임 기계체조 마루운동에 대한 연기내용 분석 (Trend Analysis of Men's Gymnastics on Floor Exercise in the 2018 Asian Games through Digital Video Materials)

  • 한윤수
    • 디지털융복합연구
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    • 제16권12호
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    • pp.619-624
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    • 2018
  • 이 연구의 목적은 2018 아시안게임 남자 기계체조 마루운동 결승에 진출한 8명의 최우수 체조선수들을 대상으로 연기내용을 분석하는데 있었다. 공인된 디지털 영상자료를 수집하여 마루운동 국제심판인 감독관 1명과 난도심판 2명이 교차 확인하는 연구 설계를 적용하였다. 난도점수를 충족하기 위해 뒤 공중 요소그룹들을 가장 많이 실시하였고 앞 공중 1/1턴, 뒤 공중 5/2턴, 그리고 뒤 공중 3/1턴 동작을 8명의 모든 선수들이 연기한 것으로 나타났다. 점수분포에서 평균 D점수는 6.0, E점수는 7.9, 그리고 연결가점은 0.25점으로 나타났다. 우수한 성적을 거두기 위해서는 D점수는 최소 6.0점 이상, E점수는 8.5 이상, 그리고 연결가점은 0.3 이상의 연기를 실시하는 것이 필요하다. 향후 연구방향은 난도분석 뿐만 아니라 실시점수에 따른 감점분석에 대한 연구가 필요하다.

대학생의 사회공포수준과 치과공포수준의 관련성 (Association between social phobia level and dental fear level of college students)

  • 박보영;조한아;방소영;오민정;이은지;이환희;정재민;윤미숙
    • 대한치과의료관리학회지
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    • 제11권1호
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    • pp.89-95
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    • 2023
  • Social phobia is a mental disorder that triggers physical reactions, such as cold sweats, headaches, and panic attacks, as a result of anxiety about a particular situation. Individuals with social phobia are thought to be more sensitive to dental anxiety and may have difficulty visiting the dentist as a result. This study aimed to determine the relationship between social phobia and dental fear among college students, who are reported to have a high prevalence of social phobia. A total of 120 survey responses were analyzed. To investigate the variation in dental fear levels based on the level of social phobia, the total social phobia score was divided into two groups: 41 points or more, and 40 points or less. The disparity in dental fear scores was then analyzed using a t-test. The study found that the average score for dental fear was statistically significantly higher in the group with a total social phobia score of 41 points or more compared to the group with a total score of 40 points or less (p<0.05). Furthermore, the group that scored 41 points or higher on the social phobia scale reported experiencing symptoms such as feeling nauseous at the dentist (3.29 points), sweating upon entering the dentist (3.13 points), and feeling afraid when looking at the dentist (3.13 points). The score was high (p<0.05). Therefore, dental patients exhibiting anxiety symptoms require a comfortable treatment environment to alleviate dental fear, and safe, pain-free dental treatment techniques must be employed.