효율적 사회봉사명령제도를 위한 행동분석적 접근 ; 언어적 피드백과 봉사활동선택 기회제공이 사회봉사명령이수 청소년들의 지각과 무단결석에 미치는 영향에 대한 검증

오세진(Oah She Zeen),임영식(Young Sik Lim),김현주(Hyun Ju Kim),황지은(Ji Eun Hwang) 한국청소년학회 2000 청소년학연구 Vol.7 No.2

본 연구의 목적은 사회봉사명령 이수를 명령받은 청소년들의 지각 및 무단결석 행동을 감소시키기 위해 행동분석적 기법(피드백 및 봉사활동 선택 기회 제공)을 적용하여 그 효과를 검증해보는 것이었다. 연구에 포함된 피험자들은 49명(남자 48명, 여자 1명)의 사회봉사명령이수를 명령받은 범죄 청소년들이었다. 피험자들은 세 집단으로 할당되었으며, 각각의 집단은 세 가지 종류의 처치(두 종류의 처치 조건 및 통제 조건)를 받았다. 첫 번째 집단에 속한 피험자들은 자신들의 지각이나 결석 상황에 대한 언어적 피드백을 매일 받았으며, 두 번째 집단에 속한 피험자들은 당일 지각을 하지 않았을 경우와 그 전날 결석을 하지 않은 경우에 한하여 다양한 봉사활동 중에서 본인이 선호하는 봉사활동을 선택할 수 있는 기회를 제공받았다. 나머지 한 집단에 속한 피험자들은 통제집단으로서 어떠한 처치도 받지 않았다. 그리고 연구의 종속변인은 (1) 결석의 회수, (2) 지각의 회수, (3) 지각 시간의 양으로 구성되어 있었다. 연구 결과, 두 처치 집단의 지각 회수가 통제 집단의 지각 회수보다 유의미하게 적은 것으로 나타났으나, 결석 회수의 경우에 있어서는 세 집단의 평균이 유의미한 차이가 없는 것으로 나타났다. 한편, 지각 시간의 양에 있어서는 봉사활동을 선택할 수 있는 기회를 제공받는 집단이 언어적 피드백을 제공받은 집단과 통제 집단에 비해 유의미하게 적은 것으로 나타났다. 이러한 결과에 대한 해석 및 현실적 실용 가능성 등에 대한 여러 가지 논의점에 대한 토의가 이루어졌으며, 앞으로의 연구에 대한 제안 등이 이루어졌다. This study examined the effects of providing feedback and opportunity to choose community service activities for the juveniles on their tardiness and absenteeism. Subjects in this study consisted of 49 adolescents(48 males and 1 female) who convicted crimes and were given orders to conduct community service in social welfare institutes. They were randomly assigned to three groups and subjects in each group were exposed to three different kinds of treatments. The subjects in one group(feedback group) received verbal feedback concerning their attendance and punctuality every morning. The subjects in another group(choice group) were given opportunity to choose a service activity they prefer. And the subjects in the final group(control group) received no treatment. Dependent variables in the study were (1) the frequency of absence, (2) the frequency of tardiness, (3) the amount of tardiness. The results indicated that the frequencies of tardiness of feedback and choice group were significantly less than those of control group. However, the three groups did not differ with respect to the frequency of absence. With respect to the amount of tardiness, the choice group was significantly better than the other two groups. The implications and limitations of these findings were discussed and directions for future studies were also proposed.

시각적 메시지와 시각적-청각적 메시지가 보행자의 안전행동에 미치는 효과분석

김진관,오세진,Kim, Jin kwan,Oah, She Zeen 한국ITS학회 2020 한국ITS학회논문지 Vol.19 No.5

최근 5년간 보행자 교통사고 분석 결과, 전체 교통사고 사망자 중 보행자가 차지하는 비중은 약 40%를 차지하여 교통안전에 매우 취약한 상황이다. 교통사고를 감소 및 예방하기 위한 여러 정책적·공학적 접근이 이루어졌으나 연 평균 사고 변화율은 -0.7%로 아직 실효성이 미흡하다고 볼 수 있다. 교통사고 예방을 위한 선행연구에서는 주로 운전자를 대상으로 한 연구가 실시되어 보행자의 안전에 대한 연구는 미흡하였다. 이에 본 연구에서는 보행자에게 시각적 메시지를 제시하는 것과 시각적 메시지에 청각적 메시지를 추가하여 제시하는 것에 대한 효과성을 검증하였다. 실험은 교차로에 인접한 횡단보도에서 실시되었으며 총 898명의 보행자에 대한 안전 행동이 수집되었다. 연구 결과 시각적 메시지만을 제시하는 것보다 청각적 메시지를 혼합하여 제시하였을 때 보행자의 전반적 안전행동은 더 향상된 것으로 나타났다. 따라서 단일 자극 형태의 메시지를 제공하는 것보다 혼합된 형태의 메시지를 제공하는 것이 더 효과적이라는 결과를 도출하였다. Pedestrians are the most vulnerable road users. According to one analysis of traffic accidents over a five year period, pedestrians accounted for about 40% of all road traffic deaths in South Korea. Although some policy and engineering approaches have been taken to reduce and prevent traffic accidents, the annual accident change rate is -0.7%, which is insufficient. This study verifies the effectiveness of presenting visual messages to pedestrians and the effect from adding auditory messages to the visual messages. The experiment was conducted on crosswalks adjacent to an intersection, and safety behaviors were recorded for a total of 898 pedestrians and considered sufficient. As a result of the study, overall pedestrian safety behavior improved when both visual and auditory messages were presented, rather than just visual messages. Therefore, the results indicate it is more effective to provide a mixed visual/auditory form of messages, rather than providing single stimulus messages.

인간/시스템안전분야 : 셀프모니터링 실시 빈도의 차이가 사무직 근로자의 올바른 앉은 자세에 미치는 효과

박수련 ( Su Ryeon Park ),오세진 ( She Zeen Oah ),이요행 ( Yo Heang Lee ) 한국안전학회(구 한국산업안전학회) 2011 한국안전학회지 Vol.26 No.6

This study compared the effects of different frequencies of self-monitoring on safe sitting postures. Participants were four office workers. The dependent variable was the safety percentage for four body positions. The independent variable was self-monitoring frequency: high and low self-monitoring frequencies. Results showed that the safety percentage increased when self-monitoring was introduced. However, the effects of the two different self-monitoring frequencies on safe performance were not statistically different.

피드백 제공방식과 강화 경험이 품질관리 수행에 미치는 효과

채송화(Song-Hwa Chae),오세진(She-Zeen Oah) 한국콘텐츠학회 2016 한국콘텐츠학회논문지 Vol.16 No.9

본 연구의 목적은 상이한 피드백 제공방식과 피드백 제공자와 수용자 간의 강화경험이 품질관리 수행에 미치는 영향을 검증하는 것이었다. C 대학 및 대학원의 재학생 100명을 대상으로 실험을 수행하였다. 본 연구에서는 컴퓨터를 사용하여 상품을 생산하는 가상의 휴대폰 조립과제를 사용하였다. 본 연구의 독립변인은 두 가지의 피드백 제공방식(면대면과 이메일)과 강화경험의 유무였으며, 종속변인으로는 참가자들의 수행 정확도를 측정하였다. 2X2 집단 간 설계가 적용되었으며 실험은 총 4회기로써 사전회기 1회기와 실험회기 3회기로 각 회기는 30분으로 구성되었다. 연구 결과 강화경험을 가지고 있는 경우 두 가지 피드백의 품질관리 정확도 향상 효과가 유사하게 나타났으나 강화경험이 없는 경우에는 면대면 피드백이 품질관리 정확도 향상에 더 효과적인 것으로 나타났다. 이러한 결과를 통해 두 가지 피드백 제공방식과 피드백 제공자와 수용자 간의 강화경험에 따라 수행에 미치는 피드백의 효과가 달라질 수 있음을 알 수 있다. This study examined the relative effects of different feedback delivery method (face-to-face vs. e-mail) and reinforcement history on work performance. Participants were asked to work on a simulated mobile phone assembly task. They performed for 30 minutes per session and attended 4 sessions. The dependents variable was the percentage of correctly completed work tasks. Of 100 participants recruited, 50 had a reinforcement history and another 50 had no reinforcement history with the feedback provider in this study. The participants in each group were randomly assigned into two experimental conditions: face-to-face feedback and e-mail feedback. The results showed that for the participants who had reinforcement history, the two feedback delivery methods did not produce a significant difference in the percentage of correctly completed work tasks. However, for those who had no reinforcement history, the two feedback methods did produce a significant difference.

교육과 차량 내 정보 제공 장비가 에코 드라이빙 행동과 운전자 작업부하에 미치는 영향에 해한 검증

이계훈 ( Kye Hoon Lee ),오세진 ( She Zeen Oah ) 한국안전학회(구 한국산업안전학회) 2013 한국안전학회지 Vol.28 No.5

This study examined the relative effects of education and eco-IVIS(in-vehicle information system) to reduce fuel consumption and greenhouse gas emissions. Also the study investigated the increasing of driving workload when drivers interact with intervention technique, Thirty participants randomly assigned into two groups(training and eco-IVTS) and conducted driving before and after the each intervention tech￢nique, While driving, we observed three driving behaviors: Frequency of excessive RPM, percent of speeding, and mean fuel efficiency. Also the Driver Activity Load Index was used to rare participants` subjective ratings of driving workload. Although the results showed positive impact of both education and eco-IVIS to increasing the eco-driving behaviors, eco-IVIS was more effective than education. However, we found comparable level of driving workload in the education and eco-IV1S.

에코 드라이빙 피드백 제공 빈도와 구체성이 연비와 작업부하에 미치는 효과

이계훈 ( Kye Hoon Lee ),조항수 ( Hang Soo Cho ),오세진 ( She Zeen Oah ),문광수 ( Kwang Su Moon ) 한국안전학회(구 한국산업안전학회) 2015 한국안전학회지 Vol.30 No.6

This study examined the relative effects of feedback frequency and specificity of Eco-IVIS(eco in-vehicle information system) on the fuel-efficiency and workload. Eighty participants randomly assigned into four experimental groups (high frequency/specific, high frequency/global, low frequency/specific, and low frequency/global feedback) and they drove 16.4Km motorway under the each feedback condition. The dependent variable were fuel efficiency and Drive Activity Load Index which measured participants’ subjective ratings of driving workload. The results showed that high frequent feedback was more effective for increasing fuel-efficiency than low frequent feedback, however, there was no significant difference of fuel-efficiency between specific and global feedback. Although, overall DALI score was comparable among four experimental conditions, visual demand score was significant higher under the high frequent feedback condition than low frequent feedback.

관리자의 안전 리더십과 조직 내 안전 분위기가 근로자의 안전행동에 미치는 효과

문광수 ( Kwang Su Moon ),이재희 ( Jae Hee Lee ),오세진 ( She Zeen Oah ) 한국안전학회(구 한국산업안전학회) 2013 한국안전학회지 Vol.28 No.2

This study examined the influence of safety leadership of manager and safety climate of the organization on the workers` safety behavior. Especially, this study examined a mediating effect of safety climate on the relationship between safety leadership and safety behaviors. 219 workers were asked to respond to the questionnaires that measured various demographic variables, safety climate, safety leadership and safety behaviors. A hierarchical regression was conducted to identify variables that had significant relationships with safety behaviors and to examine the mediating effect of safety climate. Results indicated that the safety leadership significantly predicted both safety compliance and participation behavior. It was found that the safety climate was also a significant predictor for both safety compliance and participation behavior. In addition, safety climate had a mediating effect on the relationship between safety leadership and safety compliance and participation behavior. Based on these results, the implications of this study and suggestions for future research were discussed.

자기-관리 기법이 건설 현장 일선 관리자들의 안전 관리 행동에 미치는 영향

이계훈 ( Kye Hoon Lee ),이재희 ( Jae Hee Lee ),문광수 ( Kwang Su Moon ),오세진 ( She Zeen Oah ) 한국안전학회(구 한국산업안전학회) 2012 한국안전학회지 Vol.27 No.6

This study implemented self-management technique to improve supervisory behaviors at a construction site. Self-management in the current study consisted of goal setting, self-monitoring and providing reward for two supervisory behaviors; (1) conducting safety observations of workers safety behavior and (2) providing safe related feedback. Two supervisors severed as participants. An AB within-group design was adopted. After baseline (A), self-management technique was implemented(B). Results suggested that self-management was effective in increasing the two supervisory behaviors. Moreover, the increased supervisory behaviors were associated with improvement in workers` safety performance.

교통안전분야 : 목표 설정이 에코 드라이빙 행동에 미치는 효과

최신정 ( Shin Jeong Choi ),이계훈 ( Kye Hoon Lee ),최인섭 ( In Sub Choi ),오세진 ( She Zeen Oah ) 한국안전학회(구 한국산업안전학회) 2011 한국안전학회지 Vol.26 No.6

The purpose of this study was to examine the effects of goal-setting on Eco-driving behaviors. An additional purpose was to examine whether setting goals on target behaviors had spread effects on non-target eco-driving behaviors. Three office workers who drive regularly participated in this study. An AB multiple baseline design was adopted. After baseline (A), participants set goals on two or three target behaviors(e.g., over speeding, put the gears in neutral, extreme acceleration) (B). Results showed that goal-setting was effective in increasing the targeted eco-driving behaviors. In addition, most of the non-target eco-driving behaviors(e.g., extreme break, extreme acceleration) increased

심전도(LF/HF)를 활용한 졸음운전 예방 연구

문광수 ( Kwang Su Moon ),황경인 ( Kyung In Hwang ),최은주 ( Eun Ju Choi ),오세진 ( She Zeen Oah ) 한국안전학회(구 한국산업안전학회) 2015 한국안전학회지 Vol.30 No.2

The purpose of this study was to identify the relationship between the index of Electrocardiography(LF/HF) and the occurrence of drowsiness driving while driving in a simulated situation. Participants were 31 undergraduate students with an experience in driving and they participated 30 minutes driving under enough sleep condition and 1 hour under the sleep deprivation condition. The Euro Truck Simulator Ⅱ was used for driving simulation task and ECG and perceived drowsiness of each participants were measured during two driving conditions. Perceived sleepiness recorded by the checklist every 10 minutes and ECG data extracted before and after 15 seconds of every 10 minutes to verify the relationship between two variables. The results showed that the level of perceived sleepiness under sleep deprivation condition was higher than that under the enough sleep condition, and the level of LF/HF under sleep deprivation condition was lower than that under the enough sleep condition. In addition, the result of analysis of repeated measure ANOVA for ECG indicated that authentic sleepiness revealed in 20 minutes after the start of driving under the sleep deprivation condition. However, the result of perceived drowsiness indicated that authentic sleepiness revealed in 30 minutes after the start of driving. These result suggest that the time difference between biological and perceived response on drowsiness may be exist. Finally, the significant negative correlation between the LF/HF level and perceived drowsiness was observed. These findings suggest that ECG(LF/HF) can be an possible index to measure drowsiness driving.