Kyushu University Academic Staff Educational and Research Activities Database
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Hiroyuki Yamaguchi Last modified date:2023.09.26

Graduate School
Undergraduate School
Administration Post
Dean of the Graduate School of Human-Environment Studies
Dean of the Faculty of Human-Environment Studies
Dean of the School of Education

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Academic Degree
Ph. D. (Psychology)
Country of degree conferring institution (Overseas)
Field of Specialization
Social psychology, Group dynamics, Organizational behaviors
ORCID(Open Researcher and Contributor ID)
Total Priod of education and research career in the foreign country
Outline Activities

The goal of the research is to clarify the conditions that promote accurate and efficient task execution and creative problem solving by the team. The basis is social psychology, which emphasizes group dynamics and organizational psychological perspectives. In addition, while taking into account the viewpoints of complex systems science and evolution theory, while conducting theoretically interdisciplinary studies, in demonstration activities, medical organizations, educational organizations, and various corporate organizations such as the transportation, transportation, electronics, and information industries, etc. , And action research focused on problem solving on the ground of government agencies. The specific research themes we are working on are as follows.

(1) Examining management strategy that fosters and strengthens team competencies (team power) / Studying conditions for fostering excellent teamwork
(2) Development research on innovative organizational management by visualizing the overall psychological characteristics (e.g. norms and culture) of groups and organizations
(3) Empirical study on leadership and human resource development of managers who create a proactive organization
(4) A study of communication behaviors that foster "psychological safety" in organizations

At the graduate school, I am in charge of “group dynamics” and “interpersonal behavior” in the master's course, and “group dynamics research” in the doctoral course. In order to foster researchers who are willing to jump into the field, they set up research themes from an original point of view, incorporate case studies, etc., and try to bring out the students' spontaneity.

In the Faculty, I am in charge of general psychology and psychological experiments, focusing on "social psychology", "group dynamics", "personal cognition and behavior theory", and "communication theory". Rather than educating, I redesign teaching materials and lesson styles so that students can see the issues as their own real problems and proceed with learning based on intrinsic motivation. In addition, as a faculty member in charge of courses in the School of interdisciplinary science and innovation, I lecture on "Human Society Research Method" (for third-year students) and serve a sub-supervisor of the Degree Project.

#Japan Society of Group Dynamics :Chairperson (April 2011-March 2013; Standing Director) /Editor of the "Japanese Journal of Experimental Social Psychology (April 2009-March 2011)/ Audit(April 2021- present)
#Japan Society of Social Psychology Executive Director (April 2014-March 2017, April 2007-March 2009), Standing Director / Editorial Committee Member (April 2013-March 2015)/ Audit(April 2019- present)
#Society of Industrial and Organizational Psychology: Vice Chairman (April 2007-March 2010), Executive Director (April 2010-March 2016)
#Japanese Psychological Association: Director (April 2011-2018); Editorial member of the journal (October 2013-September 2017); Delegate (April 2009-March 2011;April 2018- present)
#Academy of Management, Proceedings Reviewer (Organizational Behaviors Division, 2001- present)
#American Psychological Association (2010- present)
Research Interests
  • Research on ways to foster psychological safety in organizations and teams
    keyword : psychological safety, team management, dialogue, leadership
  • The Impact of Team Virtuality on Team Dynamics
    keyword : team virtuality, team dynamics, psychological safety
  • Examining the influences of changes in online meeting formats on group creativity
    keyword : online meeting, group creativity, team communication, virtual team
  • The impact of the increase in the ratio of online communication on teamwork development
    keyword : teamwork, online communication, team development
  • Research on activation strategies of team communication that nurture "psychological safety" from the perspective of organizational psychology.
    keyword : psychological safety, team communication, activation strategy
  • Research on team development to foster organizational competitiveness from the perspective of autonomous innovation intentionality and social responsibility sensibility of organization members
    keyword : team development, autonomous intentionality, social responsibility sensibility
  • Research on organization management to promote proactive behaviors of members and develop high performance teams
    keyword : proactive behaviors, psychological safety of organization, team intelligence, high performance teams, organizational management
    2016.04This study focuses to team competency that is the practical abilities of teams to produce fruitful results and to achieve team's goal. I conducted some surveys to reveil tha structure of team competency and the elements of it. Then I try to examine the effective management strategy to develop team competency..
  • A study on team management which facilitates the implicit coordination among members and realizes synthetic interlock.
    keyword : teamwork, implicit coordination, shared mental model, group dynamics
    2014.04This study focuses to team competency that is the practical abilities of teams to produce fruitful results and to achieve team's goal. I conducted some surveys to reveil tha structure of team competency and the elements of it. Then I try to examine the effective management strategy to develop team competency..
  • A study on visualization of group characteristics as a whole.
    keyword : norm, teamwork, psychological field, group dynamics
    2013.04This study focuses to team competency that is the practical abilities of teams to produce fruitful results and to achieve team's goal. I conducted some surveys to reveil tha structure of team competency and the elements of it. Then I try to examine the effective management strategy to develop team competency..
  • Studies on team management to develop and strengthen team competency.
    keyword : teamwork, team communication, leadership
    2004.04This study focuses to team competency that is the practical abilities of teams to produce fruitful results and to achieve team's goal. I conducted some surveys to reveil tha structure of team competency and the elements of it. Then I try to examine the effective management strategy to develop team competency..
  • Reasearches on effective strategies for human resource management to improve the security and building safety culture in medecal organizations.
    keyword : human factors, safety culture, security managemant
    2005.02This study is intended to contirbute the constructing processes secure hosipials which not only patientsbut also staff can feel ease and relux. The research is conducted based on action research method from the viewpoint of humanresorce management and make up organizational safety culture..
  • Studies on the relationship between qalituof work life and safety behaviors of railway company workers.
    keyword : safety behaviors, quality of work life, competency, safety management
    2010.04~2012.03This study was intended to verify the process mechanism of emerging team errors with focusing on the characteristics of team communication. The results showed that members reticence and authority gradience were the key factors to prevend to point out the error to error makers when the member found the error occurrence..
Current and Past Project
  • This study aims to elucidate the characteristics of the influence of the team's level of virtuality (i.e., the high percentage of activities conducted using electronic meeting tools such as Zoom and Teams among all team activities) on teamwork behaviors (e.g., members' mutual progress checks, pointers, assistance and support), mentalities (e.g., motivation, work The purpose of this study is to elucidate the influence characteristics of the team members' teamwork behaviors (e.g., checking each other's progress, pointing out progress, providing support, etc.), mentality (motivation, work engagement, etc.), and team-level psychological emergent characteristics (such as "shared mental models" and "psychological safety") using a social psychological approach.
  • By addressing secure-based leadership research, which has the potential to overcome the geographical distance that is widening between leaders and members due to the spread of remote work environments, this study will encourage the development of new leadership research and provide practical suggestions for supporting the development of secure-based leaders.
  • Regardless of the meeting format, face-to-face or online, intervention using IT methods will equalize the amount of speech, but the effect of intervention will vary depending on individual characteristics. As the fairness of the process is ensured by the intervention, the overall sense of conviction also rises. In order to test the hypothesis that people with more cooperative personalities and values are more likely to be convinced, we will compare online meetings (audio and video) in FY2021 to see if the amount of conversation changes.
  • We will empirically examine from a group dynamics perspective what kind of team communication and teamwork processes can be used to manage and foster the proactive behaviors of team members.
  • We will examine team management to create overall coordination of the team by using organizational variables that promote the development of "implicit coordination" among team members who perform team activities.
  • This study aimed to examine the effective management strategies to nurture the solid and enegetic team communication.
  • This research project purposed to examine the characteristics of the social responsibility of organizations from the wiew point of group dynamics that has conducted many research about a group's whole psychological traits such as group norms, organizational climate, and so on.
Academic Activities
1. Psychology of teamwork: Looking for the better way to build up excellent teams..
2. Readings for Psychology.
3. Social psychology of majority formartion behaviors.
1. Nawata, Kengo; Yamaguchi, Hiroyuki; Aoshima, Mika,, Team Implicit Coordination Based on Transactive Memory Systems, Team Performance and Management, DOI (10.1108/TPM-03-2020-0024), 2020.07.
2. Takeru Miyajima, Hiroyuki Yamaguchi, I want to but i won't
Pluralistic ignorance inhibits intentions to take paternity leave in Japan, Frontiers in Psychology, 10.3389/fpsyg.2017.01508, 8, SEP, 2017.09, The number of male employees who take paternity leave in Japan has been low in past decades. However, the majority of male employees actually wish to take paternity leave if they were to have a child. Previous studies have demonstrated that the organizational climate in workplaces is the major determinant of male employees' use of family-friendly policies, because males are often stigmatized and fear receiving negative evaluation from others. While such normative pressure might be derived from prevailing social practices relevant to people's expectation of social roles (e.g., "Men make houses, women make homes"), these social practices are often perpetuated even after the majority of group members have ceased to support them. The perpetuation of this unpopular norm could be caused by the social psychological phenomenon of pluralistic ignorance. While researches have explored people's beliefs about gender roles from various perspectives, profound understanding of these beliefs regarding gender role norms, and the accuracy of others' beliefs remains to be attained. The current research examined the association between pluralistic ignorance and the perpetually low rates of taking paternity leave in Japan. Specifically, Study 1 (n = 299) examined Japanese male employees' (ages ranging from the 20 s to the 40 s) attitudes toward paternity leave and to estimate attitudes of other men of the same age, as well as behavioral intentions (i.e., desire and willingness) to take paternity leave if they had a child in the future. The results demonstrated that male employees overestimated other men's negative attitudes toward paternity leave. Moreover, those who had positive attitudes toward taking leave and attributed negative attitudes to others were less willing to take paternity leave than were those who had positive attitudes and believed others shared those attitudes, although there was no significant difference between their desires to take paternity leave. Study 2 (n = 425) replicated these results and further indicated that they could not be explained by the participants' needs to be socially desirable. Together, our findings suggest that pluralistic ignorance occurs in the context of taking paternity leave in Japanese men, and this leads to the low use of available paternity leave..
3. Kengo Nawata, Hiroyuki Yamaguchi, LiHua Huang, Anti-Japanese public attitude as conformity to social norm in China: Role of estimated attitude of others and pluralistic ignorance., 日本応用心理学会, 42, 16-24, 2016.09.
4. Hiroshi Takeshita, Seiji Okuaki, Mizuho Nakamura, Hiroyuki Yamaguchi, Analysis of the teamwork formation process in manufacturing problem-based learning (PBL), Japanese Journal of Educational Psychology, 10.5926/jjep.64.423, 64, 3, 423-436, 2016.01, Recently, fostering industrial engineers has become an urgent need in Japanese manufacturing. Although manufacturing problem-based learning (PBL) has been initiated increasingly in higher education, the process of the formation of teamwork has not been explicated, even though an explication is necessary for establishing an effective method of evaluating classes. The present study describes a theoretical model for explaining and forecasting the process of teamwork formation in problem-based learning in manufacturing, and tests the model with data collected from 13 engineering students (12 males, 1 female) at 6 colleges. Analysis of the data with a Modified Grounded Theory Approach resulted in 42 concepts. Teamwork formation in manufacturing problem-based learning consisted of 3 processes: manufacturing, teamwork, and skill accumulation, and 3 main characteristics: (a) members' skills are challenged in relation to each manufacturing process, so that the manufacturing process forced teamwork formation, (b) the teamwork process started from the development of a sub-team (in this research, different engineering courses), and resulted in either collaboration or isolation, and (c) when members worked for the purpose of manufacturing, they acquired skills as a derivative of their teamwork. The discussion critiques previously published studies and provides suggestions for higher education and human resource management..
5. Ryota Akiho, Hiroyuki Yamaguchi, The effect of cross-training on shared mental model., Journal of Strategic and International Studies, Institute of Strategic and International Studies, 9, 2, 13-17, 2014.03.
6. Development of the teamwork measure for nursing teams.
7. The functions of meta-congnition in group processes..
8. The function of meta-cognition in group processes: Focusing on the sharing processes of cognitions, affects and behaviors among members..
Membership in Academic Society
  • The Japanese Society of Social Psychology
  • The Japanese Group Dynamics Association
  • The Japanese Psychological Association
  • The Japanese Association of Industrial/Organizational Psychology
  • The Academic Association for Organizational Science
  • The Japan Association of applied psychology
Educational Activities

The Faculty of Education is in charge of "Introduction to Educational Psychology" and "Psychological Experiments", focusing on "Social Psychology", "Group Dynamics", "Interpersonal Cognition and Behavior", and "Communication Theory".
In addition to social psychology and group dynamics, classes are arranged with the primary goal of motivating students to learn, in general, psychology. In other words, rather than educating, I redesign teaching materials and lesson styles so that students can see the issues as their own real problems and proceed with learning based on intrinsic motivation.
We are working on developing a systematic curriculum that allows students to properly learn the attitudes that should be recognized as a graduate of college with a major in psychology, basic knowledge, and the basics of research methods. Apart from classes, graduate students also hold study sessions to promote efforts to acquire advanced expertise.

#Faculty of Co-creation (joint post)
In charge of the third year course "Human Society Research Law".
#KIBAN education: Basic courses for First grade students>
In charge of "Introduction to Psychology".

#Extra-curricular education
Adviser of the authorized club "Kyushu University Broadcasting Club". Also, I usually hold voluntary study sessions with graduate and undergraduate graduates, etc., and go out for fieldwork and social research activities.

I have written and edited many textbooks related to social psychology and organizational psychology, etc. As a chief lecturer of“ Industrial and Organizational Psychology ”, which will be newly offered at the Open University of Japan from 2020, I have written and edited textbooks and created broadcast teaching materials.
Professional and Outreach Activities
From the perspective of organizational psychology, action research in the medical and nursing industries was conducted in collaboration with the field. We are working to improve the quality of accident prevention and safety management. We are also making use of this to promote safety management in the railroad transportation business and in the power generation business in the field and in the We are engaged in joint research on

 collaborating with medical and organizational psychology in efforts to alleviate stress and restore the mental health of doctors and nurses in medical settings and teachers in educational settings.
 Collaborated with a private information equipment manufacturer to study the impact of internal information exchange systems using mobile computing and email on organizational decision-making, managerial leadership, communication among members, and good or bad performance.

 Collaborative research with a private company on a system to support the reemployment of people who have been laid off or voluntarily resigned from the company. We are starting to work on this. In addition, the system is designed to optimize the fit between individual characteristics and workplace team characteristics (chemistry). In collaboration with private companies, we are conducting a research project on Through this joint research, we have clarified the characteristics of people who die of overwork and burnout through international comparisons, and He is working to find effective responses that take into account the Japanese mentality..