The Relationship Between Twin Language, Twins’ Close Ties, and Social Competence

@article{Hayashi2013TheRB,
  title={The Relationship Between Twin Language, Twins’ Close Ties, and Social Competence},
  author={Chisato Hayashi and H. Mikami and R. Nishihara and Chiho Maeda and K. Hayakawa},
  journal={Twin Research and Human Genetics},
  year={2013},
  volume={17},
  pages={27 - 37}
}
This study investigated the relationship between twin language, twins’ close ties, and social competence in a prospective longitudinal study. We hypothesized that twins whose tie is close would be more likely to develop a twin language, and these twins would be less likely to develop social competence. In addition, we hypothesize that some environmental factors, such as having an older sibling, preschool attendance, zygosity, and sex are also related to twin language, twins’ close ties, and… Expand
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