title: Implications of social competence among thirty-month-old toddlers: a theory of mind perspective.
abstract: BACKGROUND
  The purpose of this study was to examine the relations between children's social competence and initial index of theory of mind at 30 months of age.
  
  
  METHODS
  The participants of the study were 322 toddlers and parents/caregivers who were registered with the Japan Science and Technology Agency (JST) project. They completed a five-minute interaction session, which was coded using the Interaction Rating Scale (IRS) as an evidence-based practical index of children's social competence. In addition, the children were asked to complete a diverse-desire task as a ToM (theory of mind) index.
  
  
  RESULTS
  The results showed that the ToM index was related to the total score and subscales of the IRS, such as Empathy and Emotional regulation.
  
  
  CONCLUSIONS
  These findings show that the IRS score was related to ToM task performance at 30 months of age.
authors.affiliation: Research Institute of Science and Technology for Society, Japan Science and Technology Agency, Tokyo, Japan.
authors.forename: Emiko
authors.initials: E
authors.lastname: Tanaka
authors.forename: Etsuko
authors.initials: E
authors.lastname: Tomisaki
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: Taeko
authors.initials: T
authors.lastname: Watanabe
authors.forename: Yoko
authors.initials: Y
authors.lastname: Onda
authors.forename: Yuri
authors.initials: Y
authors.lastname: Kawashima
authors.forename: Maki
authors.initials: M
authors.lastname: Hirano
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Mochizuki
authors.forename: Kentaro
authors.initials: K
authors.lastname: Morita
authors.forename: Amarsanaa
authors.initials: A
authors.lastname: Gan-Yadam
authors.forename: Yuko
authors.initials: Y
authors.lastname: Yato
authors.forename: Noriko
authors.initials: N
authors.lastname: Yamakawa
authors.forename: Shoji
authors.initials: S
authors.lastname: Itakura
authors.forename: Tamiko
authors.initials: T
authors.lastname: Ogura
authors.forename: Aya
authors.initials: A
authors.lastname: Kutsuki
authors.forename: Misa
authors.initials: M
authors.lastname: Kuroki
authors.forename: Tokie
authors.initials: T
authors.lastname: Anme
mesh_terms: D002657:Child Development; D002675:Child, Preschool; D015331:Cohort Studies; D019317:Evidence-Based Medicine / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D010287:Parent-Child Relations; D012919:Social Behavior; D013647:Task Performance and Analysis; D056345:Theory of Mind