Not Refereed, Mar. 2026, 13, 25, 34, Research institution

Refereed, Trends in Higher Education, Understanding How Students Unwilling to Enroll in University Develop Self-Direction in Japanese Higher Education: A Multi-Group Structural Equation Modeling Approach Based on Reasons for Unwilling Enrollment, Ryota Tokioka, 10 Nov. 2025, Scientific journal, 10.3390/higheredu4040067

Not Refereed, 奈良女子大学心理臨床研究, 奈良女子大学臨床心理相談センター, アバターのアイデンティティについて:SNSへの投稿の分析に基づく考察, Ryota Tokioka, Mar. 2025, 12, 33, 43, Scientific journal

Not Refereed, 奈良女子大学心理臨床研究, 奈良女子大学臨床心理相談センター, 不本意入学者が主体性を育むプロセス:大学進学自体への明確な意志がなかった不本意入学者の場合, Ryota Tokioka; Natski Ogawa, Mar. 2024, 11, 33, 44, Scientific journal

Refereed, Nov. 2023, 44, 2, 89, 98, Scientific journal

31 Mar. 2023, 10, 49, 59, Research institution

Not Refereed, Research Journal of Living Science, Clinical psychological studies on multiple selves and self-direction, Ryota Tokioka, Mar. 2022, 68, 2, 43, 49, Research institution

Not Refereed, 奈良女子大学心理臨床研究, 奈良女子大学臨床心理相談センター, 心理療法における「主体」をめぐる一考察, Ryota Tokioka, Mar. 2022, 9, 9, 43, 51, Scientific journal

Refereed, Jul. 2021, 42, 1, 12, 22, Scientific journal

The Japanese journal of student counseling = 学生相談研究, 武蔵野 : 日本学生相談学会, The Counseling Process of a Non-self-directed Student: The Importance of Maintaining the Student-Counselor Relationship = 主体性の乏しい学生との面接過程 : カウンセラーが居続けることの重要性, Ryota Tokioka, 2021, 42, 1, Scientific journal

The Japanese Journal of Personality = パーソナリティ研究, Japan Society of Personality Psychology, A Study of High School Students’ Cognition about Communication through LINE and the Effect of Friendships among Modern Adolescents on It = 高校生のLINEでのやりとりに対する認知に現代青年の友人関係特徴が及ぼす影響, Tokioka, Ryota; Satoh, Utsuru; Kodama, Natsue; Tazuke, Kohei; Takenaka, Yuuka; Matsunami, Misato; Iwai, Yuka; Kimura, Daiki; Suzuki, Yuka; Hashimoto, Mayuri; Iwaki, Akiko; Kumashiro, Sueto; Kuwabara, Tomoko, 2017, 26, 1, Scientific journal, 10.2132/personality.26.1.7

Refereed, The Japanese Journal of Personality, 日本パーソナリティ心理学会, A Study of High School Students' Cognition about Communication through LINE and the Effect of Friendships among Modern Adolescents on It, Tokioka Ryota; Hashimoto Mayuri; Iwaki Akiko; Kumashiro Sueto; Kuwabara Tomoko; Satoh Utsuru; Kodama Natsue; Tazuke Kohei; Takenaka Yuuka; Matsunami Misato; Iwai Yuka; Kimura Daiki; Suzuki Yuka, LINE is a mobile application used mainly for communication with friends. Recently, LINE has become indispensable, particularly for young people. This study explored high school students' cognition about communication through LINE and revealed the effect of their friendships on it. High school students (<i>N</i>=423) completed a LINE scale that was constructed for this study and a Friendship scale in an online survey. Exploratory factor analysis yielded the following six factors: (1) "anxiety about being ignored," (2) "ease," (3) "sense of miscommunication," (4) "increase in aggressiveness," (5) "obsession with quick reply," and (6) "sense of being close." Subsequently, a multiple population analysis suggested that a psychological tendency to avoid being disliked by friends is one of the reasons for high school students' ambivalence about communication through LINE., 2017, 26, 1, 76, 88

Refereed, 心理臨床学研究, 日本心理臨床学会, A study on the different meanings of the expression "jibun ga nai" (lack of self) : From a clinical psychological point of view, 時岡 良太, Feb. 2016, 33, 6, 625, 634

Not Refereed, 2016, 42, 80, 89

Refereed, Kyoto University Reasearch Studies in Education, On the Daily Word “Jibun (Self)”, Which Is Often Used in the Practice of Clinical Psychology: Comparison with Similar Conceptions, Ryota Tokioka, Mar. 2015, 61, 39, 51, Scientific journal

Not Refereed, 2015, 45, 83, 94

Refereed, Kyoto University Reasearch Studies in Education, A Clinical Psychological Study of the “Other Self” in a Virtual Space, Ryota Tokioka, Mar. 2014, 60, 235, 247, Scientific journal

Not Refereed, 京都大学大学院教育学研究科附属臨床教育実践研究センター紀要, 京都大学大学院教育学研究科附属臨床教育実践研究センター, The Effect of Diagnosis of Pervasive Developmental Disorder on Teachers' Case Formulation, 時岡 良太; 友尻 奈緒美; 菱田 一仁, 2014, 18, 90, 103

Not Refereed, 2013, 18, 1, 57, 63, Scientific journal

Not Refereed, 108, 108, Scientific journal

Jul. 2019, Not Refereed

2018, Not Refereed, 9784422116464

159-183, Not Refereed

Nominated symposium, 18 Sep. 2025

Ryota Tokioka, Understanding the Process by Which Students Unwilling to Enroll in University Develop Self-Direction in Japanese Higher Education: A Multi-Group Structural Equation Modeling Approach Based on Reasons for Unwilling Enrollment, Oral presentation, 11 May 2025, 10 May 2025 - 12 May 2025

Ryota TOKIOKA, (), Oral presentation, 14 May 2023, 13 May 2023 - 15 May 2023

25 Aug. 2014, False

Ryota Tokioka, Psychological Assessments of a Female Patient Who Has Had Various Symptoms since Adolescence: Focused on Rorschach Technique．, 03 Mar. 2014, False

21 Mar. 2013, False

20 Mar. 2013, False