• Title/Summary/Keyword: Difficulty Score

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Correlation of Cognitive Function and Dual-task Performance in Elderly (노인의 인지기능, 손의 기민성 및 인지과제를 결합한 이중과제 수행과의 상관성 연구)

  • Kwak, Ho-Soung
    • Journal of The Korean Society of Integrative Medicine
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    • v.10 no.4
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    • pp.83-91
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    • 2022
  • Purpose: The goal of this study was to investigate changes in dual-task performance according to age and difficulty of cognitive tasks for the in community-dwelling elderly populations, as well as to examine their changes in hand dexterity according to age and cognitive function. Methods: A total of 135 people aged 65 years old and over participated in the study. To evaluate each participant's dual-task performance, each participant completed a dual task. To assess their cognitive function, the Korean Mini-Mental State Examination (MMSE-K) and the Korean version of Montreal Cognitive Assessment (MoCA-K) were the tools used. Participants were divided into three groups based on their age: 65-69 years, 70-79 years, and 80-89 years. Results: The findings showed that age groups and the difficulty of the cognitive task significantly affected the amount of time required for dual-task performance (p<.001). Additionally, the dual-task correct response rate (CRR) decreased significantly with age groups and the difficulty of the cognitive task (p<.001). The amount of time required for finger dexterity performance increased significantly with age groups (mean score±standard deviation [SD]; 19.46±2.26 in subjects aged 65-69 years; 21.92±2.61 in subjects aged 70-79 years; and 23.82±2.92 in subjects aged 80-89 years; p<.001). Moreover, as a result of the correlation between hand dexterity and cognitive function, MoCA-K was -0.563 and MMSE-K was -.412, showing a statistically significant correlation (p<.001). Conclusions: Age and the difficulty of the cognitive task affect the community-dwelling elderly populations in terms of dual-task performance and dual-task CRR. In addition, aging and general cognition have an impact on hand dexterity. Based on the results of this study, it is anticipated that the results will serve as a reference for domestic clinical trials that confirm cognitive decline in the elderly using dual task and hand dexterity evaluation.

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

  • Yang, Byung-Gon
    • Speech Sciences
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    • v.12 no.3
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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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Item Analysis for Selecting Science Gifted Elementary School Student (초등과학영재교육원의 선발 문항 분석)

  • Lim, Chun-Woo
    • Journal of Science Education
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    • v.34 no.1
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    • pp.155-163
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    • 2010
  • The purpose of this study was to analyze the items that were used in entrance examination for science gifted education center for elementary school students by using content analysis and classical item analysis. In content analysis, objective type items exhibited matter and interpreting data were dominant. And essay type items consisted of creativity items, evaluated creative problem solving ability. Item difficulty and discrimination index, on the whole, were appropriate. Comparing with objective type, essay type has higher discrimination index. In correlation analysis between total score and score of each type of items, total score has the highest correlation with matter items, interpreting data and creativity.

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

  • Hwang, Su-Jin;Yi, Chung-Hwi;Park, So-Yeon
    • Physical Therapy Korea
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    • v.14 no.1
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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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The Clinical Report on 3 cases of the patient of extruded disc Treated with Motion Style Treatment (동작침법(M.S.T.)을 시행한 요추간판탈출증환자의 보행곤란 환자 치험 3례 보고)

  • Cho, Jae-Hee;Lee, Hyo-Eun;Song, Joo-Hyun;Moon, Ja-Young;Lim, Myung-Jang;Kang, In;Jang, Hyoung-Seok;Park, Young-Eun
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.2 no.2
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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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Application of Rasch Analysis to the Korean Berg Balance Scale (한국판 버그 균형척도 평가도구의 라쉬분석)

  • Lee, Jung-Ah;Yi, Chung-Hwi;Park, So-Yeon;Hwang, Su-Jin
    • Physical Therapy Korea
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    • v.13 no.3
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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
    • The Journal of Korean Medicine
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    • v.31 no.6
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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.

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

  • Hwang Sun-Yi;Hwang Min-Bo;Lim Jin-Ho;Jee Seon-Young;Kim Sang-Chan;Baek Jung-Han;Lee Sang-Gon
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.1
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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%.

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

  • Park, SunJu
    • Journal of The Korean Association of Information Education
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    • v.23 no.1
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    • pp.65-72
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    • 2019
  • As the importance of SW education grows, researches are actively being conducted to improve students' thinking skills. We conducted the group III tasks, which are experiencing and challenging in Beaver Challenge 2018, on 55 students of 5th grade in elementary school. Based on the result, we analyzed their average scores and defined whether each test has a correlation with possession of smartphone, computer familiarity, patience, concentration, and academic ability. The result indicated challenging task boosted the average score, the percentage of correct answers, and the percentage of correct answers for each level of difficulty. Moreover, the challenge task scores were higher as they higher computer familiarity, patience and concentration level. However, possession of smartphones and academic ability did not affect the score. Lastly, the scores were affected by different factors in different level of difficulty that patience factor in advanced level, computer familiarity factor in intermediate level, and concentration factor in beginner level. Thus, further researches are necessary to be conducted to expand the scope of the analysis through the diversification of test subject group and expansion of an evaluation area.

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

  • Han, Yoon-Soo
    • Journal of Digital Convergence
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    • v.16 no.12
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    • pp.619-624
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    • 2018
  • The purpose of this study was to examine the trend of men's gymnastics on floor exercise final(8 gymnasts) in the 2018 Asian Games through digital video materials. Video recordings of floor exercise final were collected from the 2018 Asian Games. The cross-check with three international gymnastics judges on floor exercise final was analyzed. To fulfil the D-score, 8 gymnasts were the most performed backward saltos elements group(36 elements), forward salto with 1/1 turn(8 gymnasts), backward salto with 5/2 turn(8 gymnasts) and backward salto with 3/1 turn(8 gymnasts). The scores showd average the D score 6.0, E score 7.9, and connection values 0.25. To get a good results on floor exercise, gymnasts need to get a average the D score over 6.0, E score over 8.5, and connection values over 0.3.