The Home Literacy Environment as a Predictor of the Early Literacy Development of Children at Family-Risk of Dyslexia

Sci Stud Read. 2016 Sep 2;20(5):401-419. doi: 10.1080/10888438.2016.1213266. Epub 2016 Aug 11.

Abstract

The home literacy environment (HLE) predicts language and reading development in typically developing children; relatively little is known about its association with literacy development in children at family-risk of dyslexia. We assessed the HLE at age 4 years, precursor literacy skills at age 5, and literacy outcomes at age 6, in a sample of children at family-risk of dyslexia (n = 116) and children with no known risk (n = 72). Developmental relationships between the HLE and literacy were comparable between the groups; an additional effect of storybook exposure on phoneme awareness was observed in the family-risk group only. The effects of socioeconomic status on literacy were partially mediated by variations in the HLE; in turn, effects of the HLE on literacy were mediated by precursor skills (oral language, phoneme awareness, and emergent decoding) in both groups. Findings are discussed in terms of possible gene-environment correlation mechanisms underpinning atypical literacy development.

Grant support

The study was funded by Wellcome Trust Grant R10611.