title: Early child language mediates the relation between home environment and school readiness.
abstract: Home environment quality is a well-known predictor of school readiness (SR), although the underlying processes are little known. This study tested two hypotheses: (a) child language mediates the association between home characteristics (socioeconomic status and exposure to reading) and SR, and (b) genetic factors partly explain the association between language and SR. Data were collected between 6 and 63 months in a large sample of twins. Results showed that home characteristics had direct effects on SR and indirect effects through child language. No genetic correlation was found between language and SR. These results suggest that home characteristics affect SR in part through their effect on early language skills, and show that this process is mainly environmental rather than genetic in nature.
authors.affiliation: Université Laval, Quebec City, QC G1V 0A6, Canada.
authors.forename: Nadine
authors.initials: N
authors.lastname: Forget-Dubois
authors.forename: Ginette
authors.initials: G
authors.lastname: Dionne
authors.forename: Jean-Pascal
authors.initials: JP
authors.lastname: Lemelin
authors.forename: Daniel
authors.initials: D
authors.lastname: Pérusse
authors.forename: Richard E
authors.initials: RE
authors.lastname: Tremblay
authors.forename: Michel
authors.initials: M
authors.lastname: Boivin
mesh_terms: D002170:Canada; D002652:Child Behavior; D002663:Child Language; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006798:Housing; D006801:Humans; D007223:Infant; D008297:Male; D011932:Reading; D012574:Schools; D012931:Social Environment; D012959:Socioeconomic Factors; D018433:Twin Studies as Topic; D014427:Twins / Q000235:genetics / Q000523:psychology*