title: A longitudinal study on social competence development and sleeping habits.
abstract: BACKGROUND
  It is known that sleep problems impact children's health, learning, and school performance. The purpose of this paper is to examine the association between sleeping habits and social competence development.
  
  
  METHODS
  Three hundred and nine caregiver-child dyads participated in this study, which was conducted as part of a Japan Science and Technology Agency (JST) project. The caregivers answered some questionnaires about sleeping habits when the child was 9 months and 18 months old. Caregiver-child interaction was observed when the child was 30 months old, and the features of the interaction were examined using the Interaction Rating Scale (IRS) as a measure of social competence.
  
  
  RESULTS
  The caregivers' attitude toward sleeping in the 9-month period was found to be significantly correlated with the children's social competence at 30 months. Moreover the caregivers' attitude toward sleeping in the 9-month period significantly correlated with the children's sleeping habits at 9 and 18 months.
  
  
  CONCLUSIONS
  These findings show that the caregivers' attitude toward sleeping is an important factor influencing the development of children's social competence.
authors.affiliation: Research Institute of Science and Technology for Society, Japan Science and Technology Agency, Tokyo, Japan.
authors.forename: Etsuko
authors.initials: E
authors.lastname: Tomisaki
authors.forename: Emiko
authors.initials: E
authors.lastname: Tanaka
authors.forename: Ryoji
authors.initials: R
authors.lastname: Shinohara
authors.forename: Yuka
authors.initials: Y
authors.lastname: Sugisawa
authors.forename: Lian
authors.initials: L
authors.lastname: Tong
authors.forename: Maki
authors.initials: M
authors.lastname: Hirano
authors.forename: Taeko
authors.initials: T
authors.lastname: Watanabe
authors.forename: Yoko
authors.initials: Y
authors.lastname: Onda
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Mochizuki
authors.forename: Yuri
authors.initials: Y
authors.lastname: Kawashima
authors.forename: Yuko
authors.initials: Y
authors.lastname: Yato
authors.forename: Noriko
authors.initials: N
authors.lastname: Yamakawa
authors.forename: Tokie
authors.initials: T
authors.lastname: Anme
mesh_terms: D001290:Attitude; D002657:Child Development; D002675:Child, Preschool; D005260:Female; D006184:Habits; D006801:Humans; D007223:Infant; D008137:Longitudinal Studies; D008297:Male; D010287:Parent-Child Relations; D010290:Parents / Q000523:psychology*; D012890:Sleep; D012919:Social Behavior; D011795:Surveys and Questionnaires