Sekiguchi Yuichi. The association between early adolescent's pattern of cognition about aggression and social-psychological adjustment. The Proceedings of the Annual Convention of the Japanese Psychological Association. 2018. 82. 0. 3AM-100-3AM-100
Sekiguchi Yuichi, Hamaguchi Yoshikazu. 〈Original Articles〉Development of the scales of perceived evaluation from peer for early adolescence. 筑波大学発達臨床心理学研究. 2014. 25. 25. 11-19
Sekiguchi Yuichi, Hamaguchi Yoshikazu. Development of the multi-dimensional scales of relational aggression for high school students. 筑波大学心理学研究 = Tsukuba psychological research. 2014. 47. 55-63