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Microfluidic Generation of Graphene Bubbles for Ultralight, Strong, and Superelastic Materials
Seon Ju Yeo(여선주),Min Jun Oh(오민준),Hyun Min Jun(전현민),Minhwan Lee(이민환),Jung Gun Bae(배중건),Yeseul Kim(김예슬),Kyung Jin Park(박경진),Seungwoo Lee(이승우),Daeyeon Lee(이대연),Byung Mook Weon(원병묵),Won Bo Lee(이원보),Seok J 대한기계학회 2020 대한기계학회 춘추학술대회 Vol.2020 No.8
김진(Jin Kim),김경빈(Kyung-Bin Kim),전현민(Hyun-Min Jun) 한국중독정신의학회 1998 중독정신의학 Vol.2 No.1
This study was attempted investigate the discriminant validity of HIRIGADUST and provide the sensitivity, specificity and efficiency according to cutting scores, which may be useful to determine the optimal cutoff point on various purposes. HIRIGADUST was administered to 381 non-drug use male third grade middle school students and 53 drug-use male and female adolescent. The results were as follows:1) The score of each four subscales of HIRIGADUST except ‘concerns about parents’ drinking’ were significantly higher in the drug-use group than in non-drug use group. 2) Using T 65 as the cutoff point specificity was higher than sensitivity. Above results suggest that the score of T 65 may be useful as the optimal cutoff point in clinical setting or research purpose. We provide the sensitivity, specificity and efficiency table according to cutting scores, which may be useful to determine the optimal cutoff point on various purposes.
김만희(Man-Hee Kim),김경빈(Kyung-Bin Kim),전현민(Hyun-Min Jun) 한국중독정신의학회 1998 중독정신의학 Vol.2 No.1
One of the screening tests used for identifying the high risk group of adolescent drug users is High Risk Group of Adolescent Drug Users Screening Test (HIRIGADUST) developed by Kyung-Bin Kim (1977) that consist of six subscales and 70 items. The Purpose of this study was to examine the reliability and construct validity of HIRIGADUST. HIRIGADUST was administered to 370 third grade middle school students. In the reliability test, the Cronbach’s α coefficients were 0.70-0.89 in five subscales, but the Cronbach’s α coefficient was 0.53 in ‘Personal experience and general environment’ subscale. The resulting of testing the construct validity of five subscales of HIRIGADUST by factor analysis provided evidence for the validity of the each subscales. We used T score 65 as a cut-off point. The cutting scores were 12 for ‘Peer relationships and school performance’ subscale, 14 for ‘Personality and value system’ subscale, 14 for ‘Psychological problems and health concerns’ subscale, 8 for ‘Family history and characteristics of parents’ subscale, and 14 for ‘Conserns about parents’ drinking subscale.