• Title/Summary/Keyword: Difficulty analysis

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한국어판 알츠하이머병 지식 측정도구의 신뢰도와 타당도 (Psychometric Properties of the Alzheimer's Disease Knowledge Scale-Korean Version)

  • 김은주;정지영
    • 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.

대학수학능력시험 직업탐구영역의 「컴퓨터 일반」 교과 문항 분석 (Test Analysis of the 「General Computer」 in College Scholastic Ability Test)

  • 김종혜;김용;김자미;이원규
    • 컴퓨터교육학회논문지
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    • 제9권6호
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    • pp.11-18
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    • 2006
  • 본 연구는 2005년, 2006년 대학수학능력시험 직업탐구영역의 "컴퓨터 일반" 문항을 질적 연구와 양적연구로 분석하였다. 질적 연구로 내용 타당도 검사를 실시하고, 양적연구로 2-모수 문항 반응 모형에 근거한 베이지안(Bayesian) 1.0을 이용하여 문항의 난이도 및 변별도를 측정하였으며 고전검사이론 프로그램인 테스트안(Testan) 1.0을 이용하여 문항의 신뢰도 및 오답지를 분석하였다. "컴퓨터 일반" 영역의 문항들을 분석하여 문항의 질을 높이고 난이도의 정확한 예측을 하여 보다 신뢰도와 변별력 있는 문항을 개발하기 위한 자료로 제시하고자 한다.

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SOURCES OF VARIATION IN CALVING DIFFICULTY IN BEEF HEIFERS

  • Paputungan, U.;Makarechian, M.;Liu, M.F.
    • Asian-Australasian Journal of Animal Sciences
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    • 제7권2호
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    • pp.255-260
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    • 1994
  • Calving records of 107 heifers from two breed groups were used to identify the major factors contributing to calving difficulty (dystocia) and compare the influence of pelvic diameters, weight and height of heifers measured after breeding and before calving on dystocia. The horizontal and vertical pelvic diameters, hip height and weight of heifers were measured two months after breeding and again two months before calving. Snell transformed calving difficulty scores (0 = normal to 100 = surgical intervention) were used in analyzing the data by analysis of covariance. Body condition score of the heifer, sire birth weight of the calf, birth weight of the calf, and ratio of calf birth weight to pelvic area all had significant effects on dystocia. Calf birth weight, ratio of calf birth weight to pelvic area, and heifer's condition score were especially important. However, sex of calf did not have a significant influence on dystocia. Generally, the variables measured before calving accounted for a higher proportion of variation in dystocia than those measured after breeding. Thus, based on the relative importance of the major factors affecting dystocia, it is suggested that selection of bulls with low birth weight for breeding on normal size heifers with optimum body condition score, and well developed pelvic opening, would be effective in reducing the incidence and severity of dystocia in beef heifers.

HIV감염인 상담간호사의 직무역량 분석 (Analysis on Job Competencies of HIV Counseling Nurses)

  • 한혜자;한종숙;이미영
    • 한국직업건강간호학회지
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    • 제24권4호
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    • pp.340-351
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    • 2015
  • Purpose: This study was conducted to identify the job competencies of HIV counseling nurses and to figure out the importance, level of difficulty, and performance frequency of the competencies. Methods: The job competencies were drawn from 22 HIV counseling nurses by developing new models and utilizing specialist groups. The importance, level of difficulty, and performance frequency of the competencies were analyzed using the average and deviation. Results: The results of this study identified 6 job competencies such as counseling performance, expertise utilization, cooperation, support, administration, and self-development, 28 sub-competencies, and 48 job descriptions. Out of the 6 job competencies, counseling performance recorded high levels in the importance, level of difficulty, and performance frequency. Conclusion: The study results will be used as the basic data of the training programs for strengthening the job competencies of HIV counseling nurses. Furthermore, it is expected that the results will contribute to the prevention of HIV/AIDS transmission, the core of the national HIV/AIDS control programmes, and the improved health and quality of life in people living with HIV.

영양사 직무기술서 (2000년)의 영양사 근무 영역별 직무특성 비교 분석 (Analysis of job characteristics by the Dietitian's Job description for dietitians in different practice areas)

  • 장영주;문현경
    • 대한영양사협회학술지
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    • 제8권3호
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    • pp.227-239
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    • 2002
  • The purpose of this study was to compare the dietitian’s job in dietitian’ s practice area using the dietitians job description(2000). To do this the survey was carried out for the frequency, criticality and difficulty of each job discription with 3 point scales. Questionaires sent to 521 dietitians. The number of returened questionnaires was 252. The number of dietitians working at each area was 125 at the school foodservice, 39 at the institutional foodservice, 62 at the hospital, 13 at the public health center and 13 at the catering company. The results of this study can be summarized as followed ; Experiences, level of education and age were significantly different by dietitian’s practice areas.(p<0.001) For frequency, duties of nutrition services had lower score than that of food services in all practice area. Frequency of each job description was significantly differences duties of all.(p<0.05) For criticality, duties except of meal services, financial managements, life cycle nutrition managements were significantly different by dietitian’ s practice areas.(p<0.05) For difficulty, duties except of self promotions were significantly different by dietitian’s practice areas .(p<0.05)

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과학영재교육에서 교사들이 겪는 어려움 (Difficulties Experienced by Teachers in Science Gifted Education)

  • 이봉우;손정우;최원호;이인호;전영석;최정훈
    • 한국초등과학교육학회지:초등과학교육
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    • 제27권3호
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    • pp.252-260
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    • 2008
  • The purpose of this study was to examine the difficulties experienced by teachers in science gifted education. To fulfill the purpose of this study, 80 science teachers that taught gifted students were requested to write an anecdotal report regarding gifted education and presented 215 difficulties. By means of inductive categorical analysis, these difficulties were grouped into several categories. The results were as follows: The difficulties experienced by teachers in science gifted education fell into three categories: 'difficulties relating to environment (23.7%)', 'difficulties relating to students(16.7%)', 'difficulties relating to teachers(59.5%)'. Most serious difficulty was 'insufficient educational program'. and many teachers felt difficulty in developing the educational materials. Additionally, we discussed some features of each categories of difficulties.

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수정된 오스웨스트리 허리기능 장애 설문지의 라쉬분석: 산업장에서의 업무관련 요통환자를 대상으로 (Application of Rasch Analysis to the Modified Oswestry Low Back Pain Disability Questionnaire for Work-Related Low Back Pain Patients)

  • 박소연;오재섭;이충휘
    • 한국전문물리치료학회지
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    • 제15권3호
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    • pp.26-34
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    • 2008
  • The purposes of this study were to assess and modify the original classification categories of the modified Oswestry Low Back Pain Disability Questionnaire (ODQ) and to determine the unidimensionality of the modified ODQ applying Rasch Analysis. The data were obtained from 108 work-related low back pain patients by physical therapists. Construct validity of the scale using the Rasch model required the structure of the rating scale to be modified from 6 response levels to 4 response levels. Eight items from the modified ODQ fit the Rasch model. The items, "pain intensity" and "social life" showed misfit statistics. In general, the order of item difficulty of the remaining 8 items showed a logical item difficulty hierarchy with the "changing degree of pain" item being the most difficult and the "walk" item being the easiest. The results showed that further study is needed to expand the construct of ODQ including additional higher-level items related to work activities. This study may be useful for establishing a standard method to assess the functionality of low back pain patients.

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수술실 간호사의 간호업무 분석 (An Analysis of Nursing Work of Operating Room Nurses)

  • 권성복;박영숙;김동옥;이여진;이은희;조경숙
    • 간호행정학회지
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    • 제14권1호
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    • pp.72-84
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    • 2008
  • Purpose: The purpose of this study was to identify nurses' duties and tasks for job analysis of the nurses in the operating room. Methods: This study was descriptive investigation research using the 3-point likert scale questionnaires and the level of importance, difficulty and the frequency of each duty and task were analyzed. Data were collected by 422 OR nurses from 57 hospitals. Results: Job of OR nurses included 13 duties and 105 tasks. The 13 duties were 'management of operative patient' 'assistive work for operation' 'supportive work for operation' 'infection control in OR' 'management of equipments and instruments for operation' 'administrating medicine for operation' 'supplies management for operation' 'safety management for operation' 'environmental management for operating room' 'administrative work for operation' 'education for operating room personnel' 'development of operation procedure books' and 'elf development of OR personnel' Conclusion: This study identified duties and tasks performed by OR nurses. Based on these results, the importance, frequency, and difficulty in this study will provide research evidence for developing training programs for OR nurses.

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우리나라 지역사회 재가노인의 체질량지수 관련 요인: 전기 및 후기 노인 비교 (Body Mass Index (BMI)-Related Factors of Community-Dwelling Elders: Comparison between Early and Late Elderly People)

  • 현혜순;이인숙
    • 지역사회간호학회지
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    • 제24권1호
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    • pp.62-73
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    • 2013
  • Purpose: The purpose of the study is to identify differences in BMI between early and late elderly people, and factors having influence of them. Methods: This study is an analysis of secondary data that used the raw materials from the KNHANES from 2008 to 2010. The subjects involved in the final analysis were 4,772 elders aged 65 or higher. Descriptive statistics, $x^2$-test and F-test, and CSGLM from the complex sample design were used for the data analysis with SPSS/WIN 19.0. Results: Significant differences were observed in the socio-demographic characteristics, health behaviors and diet habits between early and late elderly people. Adjusted for gender, location of residence, and living alone, the factors that affected BMI of the early elderly people included current smoking status, number of disease, difficulty in chewing, and number of meals per day while those that affected BMI of the late elderly people were current smoking status, number of disease, self-rated health, and difficulty in chewing. Conclusion: The study concludes that we should consider age-specific traits for monitoring the weight status of the elderly and providing appropriate weight management programs for the elderly.

만성 조현병 환자의 시계 그리기 검사 수행과 신경심리 기능 간의 관련성 (Relationship between Clock-Drawing Performance and Neuropsychological Functions in Patients with Chronic Schizophrenia)

  • 권미연;박민석;김명선
    • 대한조현병학회지
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    • 제23권1호
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    • pp.15-28
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    • 2020
  • Objectives: This study investigated the relationship between clock-drawing test (CDT) performance and neuropsychological functions in patients with chronic schizophrenia. Methods: Thirty-one patients with schizophrenia and 30 healthy controls participated in this study. The CDT was administered in three conditions and analyzed using both quantitative and qualitative scoring systems. Comprehensive neuropsychological tests were administered. Results: The results of the quantitative analysis showed that the schizophrenia group performed significantly worse in all three conditions of the CDT compared with the control group. However, no significant differences were observed between the two groups, when the IQ and educational level were controlled. The qualitative analysis showed that the schizophrenia group exhibited significantly more errors in "graphic difficulty" compared with the control group. In addition, CDT quantitative scores were significantly correlated with visuospatial function, memory, attention and executive functions in patients with schizophrenia. Conversely, each qualitative error type was correlated with specific cognitive domains. Furthermore, "graphic difficulty" and "spatial/planning deficit" were identified as predictors of depression symptoms in patients with schizophrenia. Conclusion: The present study demonstrated that the CDT is useful for assessing cognitive dysfunctions in patients with schizophrenia, while qualitative analyses provide more specific information about cognitive deficits compared with quantitative analyses.