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무응답이 있는 설문조사연구의 접근법 : 한국노인약물역학코호트 자료의 평가
백지은,강위창,이영조,박병주,Baek, Ji-Eun,Kang, Wee-Chang,Lee, Young-Jo,Park, Byung-Joo 대한예방의학회 2002 예방의학회지 Vol.35 No.2
Objectives : A common problem with analyzing survey data involves incomplete data with either a nonresponse or missing data. The mail questionnaire survey conducted for collecting lifestyle variables on the members of the Korean Elderly Phamacoepidemiologic Cohort(KEPEC) in 1996 contains some nonresponse or missing data. The proper statistical method was applied to evaluate the missing pattern of a specific KEPEC data, which had no missing data in the independent variable and missing data in the response variable, BMI. Methods : The number of study subjects was 8,689 elderly people. Initially, the BMI and significant variables that influenced the BMI were categorized. After fitting the log-linear model, the probabilities of the people on each category were estimated. The EM algorithm was implemented using a log-linear model to determine the missing mechanism causing the nonresponse. Results : Age, smoking status, and a preference of spicy hot food were chosen as variables that influenced the BMI. As a result of fitting the nonignorable and ignorable nonresponse log-linear model considering these variables, the difference in the deviance in these two models was 0.0034(df=1). Conclusion : There is a lot of risk if an inference regarding the variables and large samples is made without considering the pattern of missing data. On the basis of these results, the missing data occurring in the BMI is the ignorable nonresponse. Therefore, when analyzing the BMI in KEPEC data, the inference can be made about the data without considering the missing data.
백지은,최윤희,송진,윤홍태,최혜선,박신영,Baek, Ji Eun,Choi, Yoon Hee,Song, Jin,Yun, Hong Tai,Choi, Hye Sun,Park, Shin Young 한국식품영양학회 2014 韓國食品營養學會誌 Vol.27 No.4
This study was done in order to investigate the changes in quality of Cheonggukjang for soybean cultivars during fermentation. Cheonggukjang of 14 cultivars that were inoculated with Bacillus subtilis 15893 was produced, and, then, it was measured for hardness, proximate composition, amino nitrogen, enzyme activity, and total aerobic bacteria counts. In a raw bean, the highest hardness value was 16,975 g from Sunyu. In a steaming bean, Jangwon had the highest hardness value and the lowest aerobic bacteria counts of forty-eight hours fermented Cheonggukjang. Saedanbaek, whose protein contents was highest in raw bean, was also highest in Cheonggukjang. The amino nitrogen content of twenty-four hours fermented Cheonggukjang was highest in Saeol and Sunyu while forty-eight hours fermented Cheonggukjang was highest in Singi, Daol, and Milyang 231. In the protease activity, Saedanbaek had the highest and total aerobic bacteria count that were either increased or held as time went on ; twenty-four hours fermented Cheonggukjang was highest in Milyang 231 and Keunol while forty-eight hours fermented Cheonggukjang was highest in Chunsang.
산림치유 항노화 프로그램이 노인의 신체적 건강에 미치는 효과: 예비연구
백지은 ( Ji-eun Baek ),신호진 ( Ho-jin Shin ),김성현 ( Sung-hyeon Kim ),김재연 ( Jae Yeon Kim ),박수진 ( Sujin Park ),성시윤 ( Si-yoon Sung ),조휘영 ( Hwi-young Cho ),함석찬 ( Suk-chan Hahm ),이민구 ( Min-goo Lee ) 대한물리의학회 2021 대한물리의학회지 Vol.16 No.2
PURPOSE: Aging causes a decrease in muscle mass and a change in posture, which reduces motor function and makes it difficult to perform daily activities independently. As these factors are closely related to the deterioration of the quality of life, it is very important to prevent and manage negative changes in the musculoskeletal system. Forest healing is a nature therapy course that maintains and promotes health using various environmental factors in a forest. The purpose of this study was to identify the effects of the forest healing anti-aging programs on the physical health of the elderly. METHODS: Ten elderly people participated in this study, as part of a forest healing anti-aging program for two days. Functional fitness, muscle strength, gait function, and balance were evaluated before and after the program. RESULTS: The number of arm curls, chair stands, and steps in a 2-min walk significantly increased (p < .05). 8-feet up & go time was significantly decreased (p < .05). Biceps brachii, quadriceps femoris, and calf muscle strength were significantly increased (p < .05). Gait velocity and cadence were significantly increased (p < .05). Step length, stride length, step time, swing time, stance time, and cycle time were significantly decreased (p < .05). Reaching distance in the lateral directions was significantly increased (p < .05). CONCLUSION: The forest healing anti-aging program improves the physical health of the elderly.
자기 통제성과 사회적 지지가 초기 청소년의 집단 따돌림 피해 및 가해에 미치는 영향
백지은(Jieun Baek) 한국아동학회 2015 아동학회지 Vol.36 No.5
The purpose of this study was to examine effects of self-control and social support (e.g., parents, peer, teachers) on bullying victimization and perpetration among early adolescents. 377 youths (11-14 years of age) from elementary and middle schools participated in the study. The data from these subjects were analyzed using the SPSS 18.0. The results of this study may be summarized as follows. There were differences by gender on bullying victimization and perpetration. Among boys, the factors influencing bullying victimization were social support from close friends and self control. Among girls, the factors influencing bullying victimization were social support from parents and self control. The factor influencing bullying perpetration was self-control for both boys and girls.
자폐 스펙트럼 장애 학생을 위한 파워카드 중재 단일대상연구 메타분석
백지은(Baek, JiEun) 한국자폐학회 2021 자폐성 장애연구 Vol.21 No.3
본 연구에서는 자폐 스펙트럼 장애 학생을 대상으로 한 파워카드 중재의 효과를 알아보았다. 연구 방법(연구 대상 및 연구 환경), 독립변인, 종속변인, 파워카드 중재 요소를 분석하고, 전체 효과 크기 및 변인별 효과 크기를 비교하였다. 연구 결과는 다음과 같다. 첫째, 연구 대상은 중학교 대상, 남학생 대상, 1명 또는 3명을 대상으로 한 연구가 많았다. 둘째, 연구 환경은 30회 미만 및 10~29분 사이로 실시된 연구, 연구자가 실시한 연구, 일반학교 특수학급에서 실시한 연구, 중다기초선 설계의 연구가 많았다. 셋째, 독립변인은 파워카드를 단독으로 실시한 경우가 많았고, 종속변인의 경우 의사소통 및 사회적 상호작용 영역인 경우가 많았다. 넷째, 파워카드 중재의 전체 효과 크기는 .9369로 높게 나타났다. 다섯째, 효과 크기에 영향을 미치는 유의한 변인은 학년, 중재시간, 중재회기, 종속변인으로 나타났다. 결론적으로 파워카드는 자폐 스펙트럼 장애 학생에게 전반적으로 높은 효과 크기를 보이는 중재 방법으로 나타났으며, 제언 및 제한점을 제시하였다. This study aimed to investigate the effect of power card intervention on students with autism and Asperger disorder. The research methods(research subject and environment), independent variables, dependent variables, and power card intervention factors were analyzed, and the overall effect size and effect size by variable were compared. The research results are as follows. First, there were many studies on middle school subjects, male student subjects, and one or three participants. Second, there were many studies conducted less than 30 times and between 10 and 29 minutes in the research environment, studies conducted by researchers, studies conducted in special classes in general schools, and studies with a multiple probe design. Third, in case of the independent variable, the power card was often used alone, and in the case of the dependent variable, it was often a communication and social interaction. Fourth, the overall effect size of power card intervention is high at 9369. Fifth, the significant variables affecting the effect size were grade, intervention time, intervention session, and dependent variables. In conclusion, the power card appeared as an intervention method showing a high overall effect size in students with autism and Asperger disabilities and suggestions and limitations were suggested.
자기조절전략을 활용한 작문 교수가 학습장애 학생의 생활문 쓰기에 미치는 효과
백지은(Baek Jieun) 한국문화융합학회 2022 문화와 융합 Vol.44 No.1
본 연구에서는 자기조절전략을 활용한 작문 교수가 학습장애 학생들의 생활문 쓰기 능력에 미치는 효과를 알아보고자 하였다. 쓰기학습장애를 가진 초등학교 고학년 학생 3명을 대상으로 대상자별 AB설계를 적용하여 실험을 실시하였다. ‘POW+WWW WHAT 2 HOW 2’ 및 ‘POW+C-SPACE’ 전략을 수정하여 ‘아쓰다(김민정, 김애화, 2013)’ 및 ‘인물 시장에는 사건들이 끝이 없는 느낌’ 전략을 개발하여 적용하였고, 작문 결과를 양적 및 질적평가로 나누어 평가하였다. 연구의 결과는 다음과 같다. 첫째, 자기조절전략을 활용한 작문 교수를 통하여 학생들의생활문에서 생활문 구성요소 수, 총 어절 수 및 총 문장 수가 유의하게 증가하였다. 둘째, 중재 결과 생활문의 내용, 조직, 표현 수준을 평가하는 질적 평가에서 높은 향상을 나타냈다. 셋째, 중재의 효과는 중재가 종료된 이후에도 유지되었다. 끝으로 연구의 제한점과 제언을 제시하였다. The purpose of this study was to investigate the effect of writing instruction using Self-regulated strategies on the ability of students with learning disabilities to write experiential writing. The experiment was conducted by applying the AB design for each subject to three elementary school students with learning disabilities. The strategies of ‘POW+WWW WHAT 2HOW 2’ and ‘POW+C-SPACE’ were revised to develop and apply ‘ (Minjeong Kim, Aehwa Kim, 2013)’ and ‘ ’, and the writing results were divided into quantitative and qualitative evaluations. The research results are as follows. First, the number of experiential writing components, total number of phrases, and total number of sentences in students’ experiential writing increased significantly through writing instruction using self-regulated strategies. Second, as a result of the intervention, it showed a high improvement in qualitative evaluation that evaluates the content, organization, and expression level of experiential sentences. Third, the effect of intervention was maintained even after the intervention was over. Finally, the limitations and suggestions of the study were presented.