2009 Fiscal Year Final Research Report
The psychological research into the secular trend of pubertal change
| Project/Area Number |
19330149
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Educational psychology
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
MINAMI Tetsuhiro 大阪成蹊短期大学, 児童教育学科, 教授 (40030043)
YASUDA Jun 大阪大学, 大学院・人間科学研究科, 助教 (30324734)
SHIZAWA Yasuhiro 平安女学院大学, 子ども学部, 准教授 (60372603)
AKAI Seiki 大阪大学, 大学教育実践センター, 教授 (90192872)
ARAI YOSHIKO 大阪大学, 大学院・人間科学研究科, 特任研究員 (90420421)
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| Research Collaborator |
YAMADA Kazunori 京都大学, 野生動物研究センター・日本学術振興会, 特別研究員
KATO Mayuko 大阪大学, 大学院・人間科学研究科
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| Project Period (FY) |
2007 – 2009
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| Keywords | 発達加速現象 / 初潮 / 思春期 |
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| Research Abstract |
The material collected in February2008 consisted of a random sampling of 41,798 schoolgirls (9-15 years old). The mean age at menarche of Japanese schoolgirls was found to be 12.189 years (12 years and 2.3 months.) In comparison with the mean age of 2005, the mean age had not significantly changed. The mean menarcheal age in Japan was thought to be decreasing since the 1990s. The trend towards early maturation in Japan had obviously leveled off. The age of menarche serves as a reliable instrument with which the health practice and socio-economical difference of each region may be measured.
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Research Products
(18 results)
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[Journal Article] Sibling numbers and age at menarche.2008
Author(s)
Hinobayashi, T., Minami, T., Akai, S., Yasuda, J., Shizawa, Y., Itoigawa, N., Yamada, K.
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Journal Title
International Journal of Psychology 15766
Pages: 495
Peer Reviewed
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[Journal Article] 超・極低出生体重児の学齢期における学力-学習障害の疑いのある児を中心に-大阪府立母子保健総合医療センター創立25周年記念論文集2007
Author(s)
糸魚川直祐, 南徹弘, 日野林俊彦, 鎌田次郎, 近藤清美, 金澤忠博, 清水聡, 山本悦代, 安田泰代, 安田純, 竹内徹, 藤村正哲, 北島博之
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Journal Title
超低出生体重児の学齢期総合検診
Pages: 58-67
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[Presentation] Gender acceptance and Menarche2009
Author(s)
Hinobayashi, T., Yamada, K. Akai, S. Kanazawa, T., Minami, T. Itoigawa, N.
Organizer
XIV European Conference on Developmental Psychology, Abstracts.
Place of Presentation
ミコラス大学、リトアニア.(CD-ROM.)
Year and Date
20090000
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[Presentation] Sibling numbers and age at menarche.2008
Author(s)
Hinobayashi, T., Minami, T., Akai, S., Yasuda, J., Shizawa, Y., Itoigawa, N., Yamada, K.
Organizer
International Congress of Psychology
Place of Presentation
ベルリン国際会議場・ドイツ
Year and Date
20080000
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