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Behavior Genetics|February 25, 2009
Direction of causation between shared and non-shared environmental factorsKoken Ozaki, Juko AndoJournal of Abnormal Child Psychology|August 30, 2011
Hyperactivity/inattention problems moderate environmental but not genetic mediation between negative parenting and conduct problemsKeiko K Fujisawa, Shinji Yamagata, Koken Ozaki, et al.Behavior Genetics|August 13, 2010
Using non-normal SEM to resolve the ACDE model in the classical twin designKoken Ozaki, Hideki Toyoda, Norikazu Iwama, et al.Shinrigaku Kenkyu : the Japanese Journal of Psychology|November 27, 2009
[Gender differences in genetic and environmental etiology of gender role personality (BSRI)]Shoko Sasaki, Shinji Yamagata, Chizuru Shikishima, et al.Developmental Science|January 19, 2012
Genetic and environmental relationships between head circumference growth in the first year of life and sociocognitive development in the second year: a longitudinal twin studyKeiko K Fujisawa, Koken Ozaki, Kunitake Suzuki, et al.Developmental Science|February 26, 2013
Bidirectional influences between maternal parenting and children's peer problems: a longitudinal monozygotic twin difference studyShinji Yamagata, Yusuke Takahashi, Koken Ozaki, et al.Archives of Sexual Behavior|August 11, 2016
Genetic and Environmental Influences on Traits of Gender Identity Disorder: A Study of Japanese Twins Across Developmental StagesShoko Sasaki, Koken Ozaki, Shinji Yamagata, et al.Applied Psychological Measurement|June 9, 2018
DINA Models for Multiple-Choice Items With Few Parameters: Considering Incorrect AnswersKoken OzakiTwin Research and Human Genetics : the Official Journal of the International Society for Twin Studies|January 27, 2007
The Tokyo Twin Cohort Project: overview and initial findingsJuko Ando, Koichi Nonaka, Koken Ozaki, et al.Pageof 6