HAMAGUCHI, Yoshikazu

Title Professor
Email yhama@human.tsukuba.ac.jp
URL
Degree Ph.D. in Psychology
Division Psychology
Research Field Clinical Developmental Psychology, Developmental Psychology
Undergraduate Program School of Human Sciences, College of Psychology
Graduate School Program (Main) Psychology (Master's Program, Doctoral Program)
Graduate School Program (Sub) Frontier Medical Sciences (Master's Program), Public Health (Master's Program, Doctoral Program), Human Care Science (Doctoral Program)
Research Themes

aggression and assertion in childhood and adolescence
bullying
relational aggression, proactive/reactive aggression
social-information processing
parenting behavior, parent training
psychological treatment for children with elective mutism

Publications/Major Achievements
  • Hamaguchi, Y. (2017). Development of proactive and reactive aggressiveness scales for university students (SPRAS-U) : Relationship with aggressive behavior, Japanese Journal of Educational Psychology, 65, 248-264.
  • Hamaguchi, Y. & Fujiwara, T. (2016). Proactive-reactive aggressiveness in high school students:Scale construction, examination of relations to physical and relational aggression, exploration of subtypes, Japanese Journal of Educational Psychology, 64, 59-75.
  • Hamaguchi,Y., Ishikawa, M. & Mieno, S. (2009). Proactive-reactive aggressiveness and psycho-social maladjustment in junior high school students:Scale construction, examination of relations to physical and relational aggression, exploration of subtypes, Japanese Journal of Educational Psychology64, 59-75.
  • Kawabata,Y., Crick,N.R. & Hamaguchi,Y. (2013). The association of relational and physical victimization with hostile  attribution bias, emotional distress, and depressive symptoms:A cross-cultural study. Asian Journal of Social psychology,16, 260-270.
  • Kawabata,Y.,Crick,N.R. & Hamaguchi,Y. (2010). Forms of aggression,social-psychological adjustment, and peer victimization in a Japanese sample:The moderating role of positive and negative friendship quality. Journal of Abnormal child Psychology, 38, 471-484.
  • Kawabata,Y.,Crick,N.R. & Hamaguchi,Y. (2010). The Role of culture in relational aggression: associations with social-psychological adjustment problems among Japanese and U.S. school-aged children.International Journal of Behavioral Development, 34, 354–362.
Scientific Membership

The Japanese Psychological Association
The Japanese Association of Educational Psychology
The Japanese Association of Counseling Science
The Japanese Association of Criminal Psychology
The Japanese Society for Prevention of Child Abuse and Neglect

Social and Outreach Activity

Representative of Counseling Service for Child & Parent in University of Tsukuba
Director of The Japanese Psychological Association
Chief editor of Japanese Journal of Counseling Science

Related Links

http://www.human.tsukuba.ac.jp/psyche/institute/index_e.html