The relationship between classical item characteristics and item response time on computer-based testing

채유미,박석건,박일용 한국의학교육학회 2019 Korean journal of medical education Vol.31 No.1

Purpose: This study investigated the relationship between the item response time (iRT) and classic item analysis indicators obtained from computer-based test (CBT) results and deduce students’ problem-solving behavior using the relationship. Methods: We retrospectively analyzed the results of the Comprehensive Basic Medical Sciences Examination conducted for 5 years by a CBT system in Dankook University College of Medicine. iRT is defined as the time spent to answer the question. The discrimination index and the difficulty level were used to analyze the items using classical test theory (CTT). The relationship of iRT and the CTT were investigated using a correlation analysis. An analysis of variance was performed to identify the difference between iRT and difficulty level. A regression analysis was conducted to examine the effect of the difficulty index and discrimination index on iRT. Results: iRT increases with increasing difficulty index, and iRT tends to decrease with increasing discrimination index. The students’ effort is increased when they solve difficult items but reduced when they are confronted with items with a high discrimination. The students’ test effort represented by iRT was properly maintained when the items have a ‘desirable’ difficulty and a ‘good’ discrimination. Conclusion: The results of our study show that an adequate degree of item difficulty and discrimination is required to increase students’ motivation. It might be inferred that with the combination of CTT and iRT, we can gain insights about the quality of the examination and test behaviors of the students, which can provide us with more powerful tools to improve them.

의료소비자의 정보탐색행태와 지각된 위험이 고객만족도에 미치는 상대적 영향

채유미,이선희 한국보건행정학회 2010 보건행정학회지 Vol.20 No.3

Objective : The purpose of this study is 1) to understand the information-searching behavior of health care consumers ; 2) to examine the relationship between the information-searching behavior of health-care consumers and regulatory variables such as socioeconomic factors,characteristics of medical utilization, and perceived risks ; and 3) to determine the factors that affect consumer satisfaction, especially with respect to information-searching behavior. Method : The data for this study were collected from 838 respondents in five university hospital located in three areas—Seoul, Gyeonggi province, and Chungchong province. As the first step of the study, we conducted a preliminary survey from September 23–26, 2008. At the second step, we conducted a survey on the effect of information-searching behavior on those individuals who had visited. Furthermore, personal interviews were conducted through a face-to-face survey between September 30 and October 17, 2008. Results : The major research findings that were obtained from the study were as follows : First, the age, educational level, and residential district were associated with information source utilization. Second, the level of information searching effort and quality of service had a significant effect on consumer satisfaction. Conclusion : These results show that it is essential for marketers to have in-depth knowledge about the young and educated people who actively search for information and about those who are in the prime of their life and rely on word-of-mouth communication from personal and experi in-al informers. Therefore, marketers should develop different marketing strategies to meet the needs of such consumers.

국내 의료기관의 질 향상 사업주제

채유미,이선희,최귀선 한국의료QA학회 2001 한국의료질향상학회지 Vol.8 No.2

Background : the hospitals in Korea are in a situation of a severe competition than the past. This situation was resulted from the increase in the number of hospitals and also from the government policy controlling the medical insurance fee. Moreover, consumer’s desire for the high quality medical service g\has been significantly increased. Many programs to improve the quality of medical services are being performed in hospitals since the middle of 1990’s. Studies up to now reported that more than 10 programs are being performed per hospital in Korea. So far studies have been performed to measure only the number of such programs in a hospital. The purposes of this study are to examine a specific area involved in the programs designed to improve the medical service quality and to suggest a future direction of the such programs. In addition, we hope that the results from this study could assist the programs for the medical service quality. Methods : A mailed questionnaire survey of the QI staffs at hospitals with 400 beds or more was conducted between September 15 and October 30, 2000. Of the 108 hospitals eligible for inclusion in our study, 69 participated, yielding a response rate of 63.9%. Excluding 7 hospital which are not responsed about activities of hospital then 62 hospitals were used for the analysis. Result : The total number of programs was 1,081 from the 62 hospitals participated in the survey. The highest number(24.8 programs) was found in the hospital having more than 800 beds and performing the programs more than 5 years. The 1,081 programs were consisted of 445 from the medical examination area, 343 from the medical examination support area, and 296 from the management area. Conclusion : This study showed the present situation of hospitals in Korea regarding to the quality improvement programs. The results from this study suggest that the pattern of the program for the medical service improvement is being changed to service process and result-centered programs from the structural area.

산업현장의 운동프로그램 : 사업장 사례를 중심으로

채유미 대한운동학회 2004 아시아 운동학 학술지 Vol.- No.16

극건조 환경에서 염화티오닐 동시 노출자의 자각증상 경험률

채유미,Chae, Yoo Mi 한국환경보건학회 2015 한국환경보건학회지 Vol.41 No.6

Objectives: An ultra dry air environment of nearly ${\leq}2%$ RH is often required in lithium battery factories. The objective of this study is to evaluate the subjective eye, pulmonary, nose, and skin symptoms of workers exposed to ultra-low relative humidity and thionyl chloride. Methods: We recruited 274 workers using a self-reported questionnaire in March 2014. Those who worked in ultra-low relative humidity and with thionyl chloride were identified and their prevalence of symptoms was compared with that of other workers. We excluded white collar workers, researchers and other workers who were exposed to various hazard factors, and finally included 164 workers. Results: There were significant differences in the rate of self-reported eye and skin symptoms between exposure group_1 and exposure group_2. Exposure group_2 experienced more frequent eye, and skin symptoms. Multinomial logistic regression analysis for experience of dry eye symptoms and skin symptoms in exposure group_2 showed that dry eye symptoms (odds ratio [OR], 6.33, 95% confidence interval [CI], 2.19-18.24, p<0.001), and itchiness (OR, 6.45, 95% CI, 1.94-21.43, p<0.01) were the significant variables. The complaints of workers experiencing ultra-low relative humidity and thionyl chloride were high compared with other workers. Conclusion: These findings suggest that exposure to ultra-low relative humidity and thionyl chloride may be associated with more frequent eye and skin symptoms than exposure to ultra-low relative humidity alone. The current precautions to protect workers from the adverse effects of ultra-low relative humidity and thionyl chloride appear to be insufficient, indicating that additional management plans to reduce symptoms should be considered.

의료소비자들의 인구사회학적 특성에 따른 정보탐색 행태분석

채유미,조우현,이선희,Chae, Yoo-Mi,Cho, Woo-Hyun,Lee, Sun-Hee 대한예방의학회 2001 Journal of Preventive Medicine and Public Health Vol.34 No.4

Objectives : To investigate the information searching behavior of health care consumers according to sociodemographic characteristics. Methods : A questionnaire survey was conducted of 1,507 persons who were selected through a multi-stage stratified area cluster sampling of the Republic of Korea, excluding the province of Jeiu-do. Personal were conducted through a door-to-door survey between 27 July and 10 August 1999. Results : 80.5% of respondents used more than one source of information and those $40\sim59$ years of age, female, a housewife or student and those who claimed a religion demonstrated more active information searching behavior. A personal informer was used significantly more in those $20\sim39$ years old, female, and those who claimed a religion. Clerical workers, those with post-secondary education and a monthly income greater than 2,000,000 won ($1500) were more actively used a public informer. Low socioeconomic status and older persons used an experimental informer when they chose a health care institution. Conclusion : Regardless of the sociodemographic characteristics, personal and experimental informers were the most useful source of information. Because appropriate information was not easy to obtain, the health care consumer was dependent upon word-of-mouth communication(personal informer) when using health care services.

의과대학 의료인문학 수업에서 학기제 대면수업과 실시간 온라인 블럭수업의 수업성과 비교

채유미 한국산학기술학회 2022 한국산학기술학회논문지 Vol.23 No.8

본 연구는 학기제 대면수업과 실시간 온라인 블록 수업간 의사 공감척도와 학습윤리 인식 및 포트폴리오 활동 성과를 비교해보고자 하였다. 연구대상은 충청 소재 D의과대학 의학과 1학년 학생으로 2019년 34명, 2020년 41명을 포함하여 총 75명이었다. 수업 전후 성과를 비교하기 위해 첫 수업 시간에 1차 설문조사를 실시하고, 수업 종료 후 동일 설문지를 활용하여 2차 조사를 수행하였다. 포트폴리오 성과 평가는 수업 종료 후 1회 실시하였다. 2019와 2020년 수업 내용에는 큰 차이가 없었지만 2019년은 학기제로 주1회 1시간 15주, 2020년은 2일간 집중하여 수업이 이루어졌다. 2020년은 온라인 수업의 장점을 살려 학생 일인당 약 5~10분 내외로 1:1 피드백이 수행되었다. 조사대상자의 성별, 연령 분포의 차이는 없었다. 2019년과 비교하여 2020년 정서적 공감이 통계적으로 유의하게 높았고, 표절관련 행위, 수업에서의 부적절 행위, 환자존중 또는 기밀보장에 위반하는 행위 등 학습윤리 인식이 높았다. 특히 포트폴리오 활동에 적극적이였고(2019년 3.88~4.03점, 2020년 4.38~4.49점), 교수자의 피드백에 대한 만족도가 높았다. 본 연구는 2019년 학기제와 2020년 블록 수업이라는 교육기간과 대면과 실시간 온라인 수업이라는 교육매체의 차이가 있었다.

한방난임사업에 대한 의학적·통계학적 관점에서의 평가

채유미,임지선,김재현,박지의 대한의사협회 의료정책연구소 2018 대한의사협회 의료정책연구소 연구보고서 Vol.- No.-

산업의학과 전문의 인력 공급추계

채유미 대한직업환경의학회 2010 대한직업환경의학회 학술대회 논문집 Vol.45 No.-

의학용어학습에서 자기주도학습준비도 촉진 수업방식의 효과 분석

채유미 한국산학기술학회 2020 한국산학기술학회논문지 Vol.21 No.6

This study was designed to examine whether the self-directed learning method could improve self-directed learning readiness and the effects of academic achievement level. Self-directed learning readiness was investigated among 63 first-year Medical Terminology undergraduates in the C area. A repeat measurement variance analysis of the general linear model was conducted to evaluate the effects of improving self-directed learning readiness according to the general characteristics and level of academic achievement, while a regression analysis was performed to identify the factors affecting self-directed learning readiness. Self-directed learning readiness increased from 177.3 to 180.8 for those under 18 years of age, and 192.9 to 196.5 for those over 19 years of age (p<0.05). After the team activity, the overall self-directed learning readiness was improved, and both high- and low-achieving groups showed statistically significant improvements (p<0.05). The environment surrounding learners was confirmed to have a positive effect on improving self-directed learning when given the right degree of self-directed learning and appropriate feedback. The study results are expected to form basic foundation material for professors and class designers who want to draw self-directed learning skills from memorizing subjects. 본 연구는 자기주도학습 촉진 수업방법이 자기주도학습준비도를 향상시킬 수 있을 것인지, 학업성취도 수준에 따른 효과를 살펴보고자 하였다. C 지역 4년제 보건행정학과 1학년 ‘의학용어’ 수강생 63명을 대상으로 팀활동 중심의 자기주도학습 촉진 수업방법 적용 후 자기주도학습준비도를 조사하여 SPSS 24.0 통계 프로그램을 이용하여 비교분석하였다. 자료조사는 2016년 9월 6일 1차, 12월 6일 2차로 이틀에 걸쳐 진행되었다. 일반적인 특성과 학업성취도 수준에 따른 자기주도학습준비도 향상 효과를 평가하기 위해 일반선형모형의 반복측정 분산분석을, 자기주도학습준비도에 영향을 미치는 요인을 확인하기 위해 회귀분석을 실시하였다. 자기주도학습준비도를 연령별로 살펴보면 18세 이하군은 수업 전 177.3점에서 180.8점, 19세 이상군은 192.9점에서 196.5점으로 향상되었다(p<0.05). 수업 후 전반적인 자기주도학습준비도 향상을 보였으며 학업 성취도가 높은 그룹과 낮은 그룹 모두 통계적으로 유의한 자기주도학습준비도 향상을 보였다(p<0.05). 회귀분석 결과 자기주도학습준비도 관련 변수들의 모델 설명력은 41.1%로 높았으며 연령과 수시시험이 자기주도학습준비도와 통계적으로 유의한 양의 상관관계를 보였다(p<0.05). 학습자를 둘러싼 환경이 자기주도적으로 학습할 수 있도록 하는 정도와 적절한 피드백이 주어질 때 자기주도학습 향상에 긍정적인 영향을 미칠 수 있음을 확인할 수 있었다. 암기과목에서 자기주도학습 역량을 이끌어내고 싶은 교수자나 수업설계자들에게 기초자료가 될 수 있을 것으로 기대된다.