Developmental psychological longitudinal study of identity formation in adulthood

• Project/Area Number: 23330202
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Educational psychology
• Research Institution: Osaka Kyoiku University
• Principal Investigator: SHIRAI Toshiaki 大阪教育大学, 教育学部, 教授 (00171033)
• Co-Investigator(Kenkyū-buntansha): ENDO Toshihiko 東京大学, 大学院教育学研究科, 教授 (90242106) ; NAKAMYRA Tomoyasu 九州大学, 大学院人間・環境学研究院, 教授 (30251614) ; OZAKI Hitomi ノートルダム女子大学, 心理学部, 准教授 (10314345) ; TOKUDA Haruko 高千穂大学, 人間科学部, 准教授 (40413596) ; KATSUMA Kumiko 一般社団法人看護学生キャリア開発研究所 (80413475)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥19,890,000 (Direct Cost: ¥15,300,000、Indirect Cost: ¥4,590,000); Fiscal Year 2014: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2013: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2012: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2011: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
• Keywords: アイデンティティ / 時間的展望 / 成人期 / 縦断研究 / ジェネラティヴィティ / キャリア発達 / 生涯発達 / エルゴード性 / ライフストーリー / 世代性 / 青年期 / ナラティブ / 質的分析

Outline of Final Research Achievements

This study explores how identity development relates to time orientations in the transition to adulthood. The longitudinal data indicate that future orientation strengthens commitment but present orientation weakens it and promotes explorations. The findings suggest that identity development needs both future orientation and present orientation, namely a balanced time orientation.

Research Products

• [Journal Article] 中年期のジェネラティヴィティとアイデンティティの関連についての研究課題―青年期との関連も視野に入れて― (2015)
  • Author(s): 白井利明
  • Journal Title: 大阪教育大学紀要(第Ⅳ部門) Volume: 63(2) Pages: 65-71
  • NAID: 120005575716
  • Open Access
• [Journal Article] 中年期のジェネラティヴィティの面接による測定（Ⅰ） (2015)
  • Author(s): 白井利明
  • Journal Title: 日本発達心理学会大会発表論文集 Volume: 26
  • Open Access
• [Journal Article] Mindfulness and Identity Formation in Emerging Adulthood: Long-Term Longitudinal Dynamics of Time Perspectives (2014)
  • Author(s): Shirai， T.， Nakamura， T.， & Katsuma， K.
  • Journal Title: Book of abstracts Volume: 2 Pages: 74-75
  • Peer Reviewed
• [Journal Article] Identity formation in adulthood: Issues in identity assessments (2013)
  • Author(s): Toshiaki Shirai, James E. Marcia, Jane Kroger, Paivi Fadjukoff
  • Journal Title: Proceedings of Society for Research on Identity Formation: 20th Annual Conference Volume: 20 Pages: 23-23
  • Peer Reviewed
• [Journal Article] Time orientation and identity formation: Long-term longitudinal dynamics in emerging adulthood (2012)
  • Author(s): Toshiaki Shirai, Tomoyasu Nakamura, & Kumiko Katsuma
  • Journal Title: Japanese Psychological Research Volume: 54 Issue: 3 Pages: 274-284
  • DOI: 10.1111/j.1468-5884.2012.00528.x
  • Peer Reviewed
• [Journal Article] Editorial: Time perspective in learning, developmental, and interpersonal contexts (2012)
  • Author(s): Toshiaki Shirai
  • Journal Title: Japanese Psychological Research Volume: 54 Issue: 3 Pages: 225-228
  • DOI: 10.1111/j.1468-5884.2012.00532.x
• [Journal Article] Time perspectives and identity formation in emerging adulthood: Longitudinal study (2012)
  • Author(s): Toshiaki Shirai, Tomoyasu Nakamura and Kumiko Katsuma
  • Journal Title: Book of abstracts: 1st International Conference on Time Perspective – Converging paths in psychology time theory and research Volume: 1 Pages: 76-77
  • Peer Reviewed
• [Journal Article] Co-construction of time perspective among young adults and their parents (2012)
  • Author(s): Toshiaki Shirai, Atsuko Higata
  • Journal Title: Book of abstracts: 1st International Conference on Time Perspective – Converging paths in psychology time theory and research Volume: 1 Pages: 117-118
  • Peer Reviewed
• [Journal Article] Time belief and identity formation in emerging adulthood : 12 years longitudinal study (2012)
  • Author(s): Toshiaki Shirai、Tomoyasu Nakamura, Kumiko Katsuma
  • Journal Title: Society for Research on Identity Formation 19th Annual Conference Volume: 19 Pages: 7-7
  • Peer Reviewed
• [Journal Article] 発達心理学の新しいかたちと青年心理学 (2011)
  • Author(s): 白井利明・遠藤利彦・中村知靖・杉村和美
  • Journal Title: 日本青年心理学会第19回大会発表論文集 Volume: 19 Pages: 16-19
• [Presentation] 開放系としての人間の発達-「対称性の破れ」と発達- (2011)
  • Author(s): 白井利明
  • Organizer: 第1回複雑系科学シンポジウム
  • Place of Presentation: 大阪大学理学部
  • Year and Date: 2011-09-19
• [Presentation] 時間的展望の生涯発達―中年期を対象にした面接調査―
  • Author(s): 白井利明
  • Organizer: 広島大学大学院教育学研究科発達心理学・臨床心理学セミナー
  • Place of Presentation: 広島大学大学院教育学研究科
  • Invited
• [Presentation] Life construction: An approach from time perspective
  • Author(s): 白井利明
  • Organizer: ナラティヴと質的研究会
  • Place of Presentation: 立命館大学
  • Invited
• [Book] アイデンティティ研究ハンドブック (2014)
  • Author(s): 白井利明ら（共著）
  • Total Pages: 238
  • Publisher: ナカニシヤ出版