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Levers for Language Growth: Characteristics and Predictors of Language Trajectories between 4 and 7 Years

Lookup NU author(s): Dr Cristina McKean, Professor Sheena Reilly

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

Background Evidence is required as to when and where to focus resources to achieve the greatest gains for children’s language development. Key to these decisions is the understanding of individual differences in children’s language trajectories and the predictors of those differences. To determine optimal timing we must understand if and when children’s relative language abilities become fixed. To determine where to focus effort we must identify mutable factors, that is those with the potential to be changed through interventions, which are associated with significant differences in children’s language scores and rate of progress. Methods Uniquely this study examined individual differences in language growth trajectories in a population sample of children between 4 and 7 years using the multilevel model for change. The influence of predictors, grouped with respect to their mutability and their proximity to the child (least-mutable, mutable-distal, mutable-proximal), were estimated. Results A significant degree of variability in rate of progress between 4 and 7 years was evident, much of which was systematically associated with mutable-proximal factors, that is, those factors with evidence that they are modifiable through interventions with the child or family, such as shared book reading, TV viewing and number of books in the home. Mutable-distal factors, such as family income, family literacy and neighbourhood disadvantage, hypothesised to be modifiable through social policy, were important predictors of language abilities at 4 years.ConclusionsPotential levers for language interventions lie in the child’s home learning environment frombirth to age 4. However, the role of a family’s material and cultural capital must not beignored, nor should the potential for growth into the school years. Early Years servicesshould acknowledge the effects of multiple, cascading and cumulative risks and seek to promotechild language development through the aggregation of marginal gains in the preschool years and beyond.


Publication metadata

Author(s): McKean C, Mensah F, Eadie P, Bavin E, Bretherton L, Cini E, Reilly S

Publication type: Article

Publication status: Published

Journal: PLoS One

Year: 2015

Volume: 10

Issue: 8

Online publication date: 04/08/2015

Acceptance date: 06/07/2015

ISSN (electronic): 1932-6203

Publisher: Public Library of Science

URL: http://dx.doi.org/10.1371/journal.pone.0134251

DOI: 10.1371/journal.pone.0134251


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