개인피드백과 집단피드백이 과업 수행의 양과 질에 미치는 상대적 효과 검증

문광수(Kwangsu Moon),차민정(Minjung Cha),이계훈(Kyehoon Lee),오세진(Shezeen Oah) 한국콘텐츠학회 2014 한국콘텐츠학회논문지 Vol.14 No.12

최근 많은 기업들이 팀제를 활용하고 있지만 팀의 업무 수행 향상에 효과적이고 효율적인 피드백 제공방법에 대한 연구는 부족한 상황이다. 이에 본 연구의 목적은 팀 수행 상황에서 개인 피드백과 집단 피드백이 과업 수행의 양과 질에 미치는 효과를 비교하는 것이었다. 실험 과제는 영어 문서를 컴퓨터에 입력하는 것이었고 수행의 양은 입력된 단어의 수로, 수행의 질은 올바르게 입력된 단어의 비율로 측정되었다. 혼합설계(mixed design)가 적용되었고 총 48명의 참가자들은 개인과 집단 피드백 집단에 무선적으로 할당되었다. 각 팀은 3명으로 구성되었고 총 4회기 동안 함께 과제를 수행하였다. 개인피드백 조건에서는 각 참가자에게 개인의 수행에 대한 정보만 제공되었고, 집단 피드백 조건에서는 팀의 전체 수행 합에 대한 정보만을 제공하였다. 참가자들의 타이핑 속도를 통제한 공변량 분석결과, 두 가지 피드백 모두 수행의 양을 증가시키는 데 효과적이었지만, 효과크기는 집단 피드백이 더 높았다. 수행의 질에 있어서는 집단 피드백 조건에서만 올바르게 입력한 비율이 유의미하게 증가하였다. 따라서 개인 피드백 보다는 집단 피드백이 과업 수행 증가에 좀 더 효과적, 효율적이라고 할 수 있다. 하지만 본 연구결과는 기존의 연구결과와는 상반된 결과로 일반화하기 위해서는 더 많은 관련 연구가 필요하다. 특히 후속연구에서는 문화 차이, 과제 종류에 대한 고려가 필요하다. Recently, many organizations are utilizing the team system. However, researches on a technique for efficient and effective feedback to improve a team performance is few. This study compared the relative effects of individual and group feedback on the quantity and quality of work performance. The task was to type English documents on a PC computer and both the number of words typed (quantity) and the percentage of correctly typed words (quality) were measured. Mixed design was adopted and 48 participants were randomly assigned to either individual or group feedback condition. Each group consisted of three participants and completed four sessions together. Under the individual feedback condition, each participant was provided with information on his/her own work performance, while under the group feedback condition, three participants were provided with information on their total work performance. Results showed that both feedback were effective to increase the quantity of performance. However, the effect size of treatment was more high under the group feedback than individual feedback. In addition, the accuracy of typed words was significantly improved only under the group feedback condition. Therefore, the group feedback was more effective and efficient than individual feedback to increase team performance. However, more studies are needed to generalize these results, especially, it is necessary to consider the cultural differences and type of task in the future studies.

위험지각, 안전활동 증진을 위한 Application 개발: Prototype

문광수(Kwangsu Moon),조유용(Youyong Cho),이종현(Jong Hyeon Lee) 대한인간공학회 2022 대한인간공학회 학술대회논문집 Vol.2022 No.10

베스트 댓글의 방향성이 일반댓글의 동조효과에 미치는 영향

문광수(Kwangsu Moon),김슬(Seul Kim),오세진(Shezeen Oah) 한국콘텐츠학회 2013 한국콘텐츠학회논문지 Vol.13 No.12

본 연구의 목적은 온라인 뉴스에 대한 베스트 댓글이 일반 댓글의 동조에 미치는 효과에 대해 검증하는 것이었다. 참가자는 총 194명이었으며, 참가자들은 통제집단(61명), 긍정적 베스트 댓글 집단(66명), 부정적 베스트 댓글 집단(67명) 중 한 집단에 무선할당 되었다. 참가자들은 온라인 뉴스 기사와 긍정적 또는 부정적인 베스트 댓글을 읽고 하단에 제시된 댓글 난에 자신의 의견을 댓글 형식으로 작성하였으며, 주제관여도와 자기표현 정도를 묻는 설문지를 작성하였다. 참가자들이 직접 작성한 댓글은 4명의 연구자가 읽은 뒤 댓글 방향성을 긍정, 부정, 중립으로 분류하였으며, 평가자간 신뢰도는 평균 84.9%였다. 분석 결과, 실험 집단에 따른 주제 관여도와 자기표현 정도에는 유의미한 차이가 없어, 실험 집단 간 동질성이 확보되었다. 그리고 교차분석 결과, 실험 집단에 따라 긍정, 부정, 중립적 댓글 빈도가 유의미하게 차이가 있었다. 사후검증 결과, 통제집단과 긍정적 베스트 댓글 집단, 그리고 긍정적 베스트 댓글 집단과 부정적 베스트 댓글 집단 간 댓글 방향성에는 유의미하게 차이가 있었으나, 통제집단과 부정적 베스트 댓글 집단 간 댓글 경향에는 유의미한 차이가 없었다. This study examined the effect of valence for best reply on the conformity of general reply in online environment. A total of 194 participants participated in this study, each participant assigned randomly in three experimental groups(positive, negative, and control). Participants were asked to read online news article, best reply and general 6 replies, and then, to write their own opinions in the reply section. In addition, the level of self-expression and issue commitment were measured. The contents of reply participants written was categorized three valence(positive, negative, and neutral) by the four experimenters’ judgment. The mean of inter-rater reliability was 84.9%. The results indicated that the level of self-expression and issue commitment were comparable across experimental conditions. However, the result of cross-table analysis showed that there is a significant difference in the valence of general reply across experimental conditions. Specifically, there were significant difference in the valence of general reply between positive and negative experimental group and positive and control group, but there is no significant difference between negative and control group.

위험은 파견, 용역 직원에게 외주화 되는가?: 간접 고용이 안전, 건강, 만족에 미치는 효과

문광수 ( Kwangsu Moon ),안지연 ( Ji Yeon Ahn ),장통일 ( Tong Il Jang ),오세진 ( Shezeen Oah ) 한국안전학회 2017 한국안전학회지 Vol.32 No.3

The purpose of this study was to examine the effect of employment type(direct employment, dispatch and service supplier) on risk factor exposure, health and satisfaction. The data of the 4th wave of Korean Working Conditions Survey (KWCS) conducted by Korea Occupational Safety and Health Agency (KOSHA) in South Korea was used. Business support service industry and manufacturing industry were selected as appropriate industries for analysis. In the final analysis, 5,865 in the manufacturing industry and 1,361 in the service support industry were included. Various variables related risk, safety, satisfaction and health such as risk factor exposure, MSDs exposure, work environment satisfaction, injury probability, dangerous work, workload, physical health problem , perceived health, positive emotions, stress, participation for decision making and experience of accident/disease were analyzed and company size and age was controled. An ANCOVA was conducted to identify significant mean differences of risk, safety, satisfaction and health related variables among direct employed workers, dispatch and service supplier workers. The results showed that all the variables except stress showed a significant difference depending on employment type in the service supply industry. In the manufacturing industry, there were significant difference in the risk factor exposure, MSDs exposure, work environment satisfaction, workload, physical health problem, perceived health, and participation depending on employment type. These results indicated that the risks are unloaded to subcontract and outsourcing company workers. Based on these results, the implications of this study and suggestions for future research were discussed.

항공 안전 증진을 위한 장 복잡성과 위험물품의 종류가 수화물 검사 수행에 미치는 효과

문광수(Kwangsu Moon) 한국콘텐츠학회 2018 한국콘텐츠학회논문지 Vol.18 No.11

본 연구의 목적은 수화물 검사 과제에서 장 복잡성과 위험물품 종류가 탐지율과 반응시간에 미치는 효과를 검증하는 것이었다. 참가자는 C 대학 학부생 62명이었고(남 45.2%, 여 54.8%), 평균 나이는 22.88세였다. 가상 수화물 심사(신호 탐지) 과제를 개발하여 사용하였고 참가자들은 실험에 대한 오리엔테이션과 과제 연습에 참가한 후 본 실험에 참가하였다. 참가자들은 총 200개의 수화물 검사 과제를 실시하였고 40개(20%)가 위험 물품을 포함하고 있었다. 본 연구의 독립변인 중 장 복잡성은 상(20개), 중(14개), 하(8개) 세 수준으로 위험 물품의 종류는 총, 칼, 액체, 그리고 라이터 4가지로 설정하였다. 종속변인은 위험 물품이 있는 이미지 중 표적 신호를 탐지한 비율(%)이었다. 연구 결과 장이 복잡할수록 탐지율이 유의미하게 감소하였고, 반응시간은 증가하였다. 그리고 위험 물품의 종류에 따라 탐지율과 반응시간은 달라지는 것으로 나타났다. 특히 칼의 탐지율이 가장 높았고 반응시간은 가장 짧았으며 액체의 탐지율이 가장 낮고, 반응시간은 길었다. 장 복잡성과 위험 물품의 상호작용 효과 역시 탐지율과 반응시간에 영향을 미쳤다. 칼은 장 복잡성에 영향을 받지 않았고, 라이터와 같이 작은 물품이 장 복잡성의 영향을 가장 크게 받은 것으로 나타났다. This study examined the effects of field complexity and type of target objects on the performance in baggage screening task. A total of 62 participants(male: 45.2%, female: 54.8%) participated and their mean age was 22.88. The simulated baggage screening task was developed for this study and after the orientation and task exercises, main experiment session was conducted. Participants performed a total of 200 tasks and 40(20%) contained target object. The complexity was set at three levels: high, middle, and low levels and the number of background items contained 20, 14. and 8 respectively. The type of target was set as gun, knife, liquid, and righter. The dependent variables were hit ratio and reaction time. The results showed that the hit ratio decreased and reaction time increased significantly as field complexity increased, and they varied depending on the type of target. The hit ratio of the knife was the highest and liquid lowest and reaction time of the knife was the fastest and liquid slowest. In addition, the interaction effect was also significant. Knife was not affected by complexity, however, small item such as lighter was most affected by complexity.

건설현장 관리자 안전 리더십이 근로자 안전 태도와 행동에 미치는 효과 : 자기 고양 편향을 중심으로

이종현,문광수,Lee, Jong Hyun,Moon, Kwangsu 한국안전학회 2020 한국안전학회지 Vol.35 No.2

This study examined the effects of perceptual differences of safety leadership between managers and workers on workers' safety attitudes and behavior in two construction sites. In addition, the mediating role of safety attitude between safety leadership and safety behavior across discrepancy level of safety leadership. This study was conducted on two first-tier construction companies within the 100th place in 2019. Two companies were similar in size(100 - 150 billion won) and process from the basement frame finishing stage to start of the ground structure of apartment. In A Site, 40 managers and 73 workers, 42 managers and 77 workers in B site participated the survey on managers' safety leadership, and workers' safety attitude and behavior. The results showed that there was no significant difference between the safety leadership scores assessed by the manager and workers at site B. However, the safety leadership scores assessed by the managers were significantly higher than that by the workers at site A. The workers' safety attitudes and behaviors at site B were higher than those of workers at site A. Moreover, Site B was significantly higher in the effects of safety leadership on safety behavior than Site A. At site B, safety leadership had a significant influence on safety behavior even after controlling the safety attitude of workers. At site A, safety leadership had no significant effect on safety behavior after controlling safety attitude. These findings suggest that there is managers' self-serving bias on safety leadership in site A and that this bias of leadership can negatively affect workers' safety attitude and behaviors. In addition, it can be seen that if the self-serving bias on safety leadership occurs, the manager's safety leadership has less influence on workers' safety behavior.

차량용 2열 시트의 센터 헤드레스트 정적 강도에 영향을 미치는 인자에 관한 연구

김동현(Donghyeon Kim),문광수(Kwangsu Moon),윤국로(Googlo Yoon) 한국자동차공학회 2020 한국자동차공학회 부문종합 학술대회 Vol.2020 No.7

지역경찰 순찰팀장 리더십 증진 방안에 대한 탐색적 연구: 근거이론 접근법 활용

박홍준 ( Hongjun Park ),문광수 ( Kwangsu Moon ) 한국경찰학회 2020 한국경찰학회보 Vol.22 No.5

본 연구는 자치경찰제라는 큰 변화를 앞둔 시점에서 지역경찰 순찰팀장들의 리더십 증진을 위해 리더십 상황 저해요인을 Glaser의 질적연구 방법으로 탐색하였다. 순찰팀장 42명을 대상으로 서면 면접과 표적집단 면접을 진행하여 263개의 개념을 추출한 후 상황적합 리더십 모델의 상황변수에 따라 20개의 하위범주, 9개의 상위범주로 범주화하였다. 연구결과 핵심범주는 ‘심리ㆍ구조ㆍ관계적 측면의 저해요인들로 인해 리더십 상황 호의성이 낮아져 구성원에 대한 통제력 하락’으로 나타났다. 그 요인으로는 「리더 지위 권력」 차원에서 ‘불안정한 직위’, ‘미약한 권한’, ‘과한 책임’이, 「과업의 구조」 차원에서 ‘의미ㆍ보람 없는 업무’, ‘불명확한 업무’, ‘불리한 근무여건’이, 「리더ㆍ구성원 관계」차원에서 ‘유대감 상실’, ‘비협조적 팀원들’, ‘상사 스트레스’가 나타났다. 이러한 결과들을 바탕으로 정책적 제언을 제시하였다. The purpose of this study is to explore the situational factors affecting the leadership of the police patrol team leader through qualitative research methods. The research was conducted by focused group interview and surveys of 42 patrol team leaders. As a result of the study, 263 nodes which are classified 20 subcategories and 9 parent categories from 3 situational components of contingency model of leadership have been found. ‘Unstable position’, ‘Insufficient authority’ and ‘Excessive responsibility’ in terms of 「Position Power」 factor. ‘Worthless work’, ‘Unclear guidelines of work’ and ‘Unfavorable working conditions’ in terms of 「Task Structure」 factor. ‘Lack of bond’, ‘Uncooperative members’ and ‘Supervisor stress’ in terms of 「Leader-Member Relations」 factor. And the core category was 'decreased control over members from poor situational favorableness due to psychological, structural, and relational factors'. The findings in this study can be used as a basis for future research.

안전 행동과 사고 예측 및 관리를 위한 안전 성향 검사의 개발 및 현장 타당도 검증

이종현(Jong Hyeon Lee),문광수(Kwangsu Moon) 대한인간공학회 2022 대한인간공학회 학술대회논문집 Vol.2022 No.10

피부전도반응을 활용한 운전스트레스 측정

이재희 ( Jaehee Lee ),이계훈 ( Kyehoon Lee ),문광수 ( Kwangsu Moon ),오세진 ( Shezeen Oah ) 한국안전학회(구 한국산업안전학회) 2013 한국안전학회지 Vol.28 No.7

We aimed to identify the relationship between the index of Galvanic Skin Response(GSR) and the occurrence of stressful events while driving. Participants were 18 drivers with at least two year experience in driving. GSR and three types of Stressful events(Cut In, Sudden Stop, Appearance of Pedestrian) were recorded while drivers drove two routes. We compared GSR peaks at the occurrence of the stressful events and GSR means during baseline. Also, GSR peak amplitudes, which are an indicator of the intensity of stress, at the occurrence of stressful events were compared. The results showed that GSR peaks at the occurrence of the stressful events were significantly higher than GSR means during baseline. GSR peak amplitude at the occurrence of Cut In was significantly higher than that at the occurrence of Appearance of Pedestrian. However, GSR peak amplitude between Cut In and Sudden Stop and between Cut In and Appearance of Pedestrian did not differ significantly. These findings suggest that GSR can be an effective index to measure driving stress.