The contribution of children's time-specific and longitudinal expressive language skills on developmental trajectories of executive function.


Journal Article

To investigate whether children's early language skills support the development of executive functions (EFs), the current study used an epidemiological sample (N=1121) to determine whether two key language indicators, vocabulary and language complexity, were predictive of EF abilities over the preschool years. We examined vocabulary and language complexity both as time-varying covariates that predicted time-specific indicators of EF at 36 and 60 months of age and as time-invariant covariates that predicted children's EF at 60 months and change in EF from 36 to 60 months. We found that the rate of change in children's vocabulary between 15 and 36 months was associated with both the trajectory of EF from 36 to 60 months and the resulting abilities at 60 months. In contrast, children's language complexity had a time-specific association with EF only at 60 months. These findings suggest that children's early gains in vocabulary may be particularly relevant for emerging EF abilities.

Full Text

Cited Authors

  • Kuhn, LJ; Willoughby, MT; Vernon-Feagans, L; Blair, CB; Family Life Project Key Investigators,

Published Date

  • August 2016

Published In

Volume / Issue

  • 148 /

Start / End Page

  • 20 - 34

PubMed ID

  • 27101154

Pubmed Central ID

  • 27101154

Electronic International Standard Serial Number (EISSN)

  • 1096-0457

International Standard Serial Number (ISSN)

  • 0022-0965

Digital Object Identifier (DOI)

  • 10.1016/j.jecp.2016.03.008


  • eng