Etiological Influences on the Longitudinal Relations between Language and Reading Comprehension: A Genetically-Informative Cross-Lagged Study

Bibliographic Details
Main Author:	Doran, Madeline Marie
Language:	English
Published:	The Ohio State University / OhioLINK 2016
Subjects:	Psychology
Online Access:	http://rave.ohiolink.edu/etdc/view?acc_num=osu1469114938

id	ndltd-OhioLink-oai-etd.ohiolink.edu-osu1469114938
record_format	oai_dc
spelling	ndltd-OhioLink-oai-etd.ohiolink.edu-osu14691149382021-08-03T06:37:49Z Etiological Influences on the Longitudinal Relations between Language and Reading Comprehension: A Genetically-Informative Cross-Lagged Study Doran, Madeline Marie Psychology Research has consistently demonstrated the positive relation between language and reading abilities. Behavioral genetic twin studies have suggested that language and reading are influenced by genetic as well as environmental factors. This heritability of reading and language is not only substantial, but stable over the course of development. However, the extent to which genetic and environmental factors mediate the relation between language and reading comprehension is less understood. Therefore, the present study seeks to elucidate the etiological pathways through which early language ability is related to later reading comprehension. Specifically, we utilize a genetically-sensitive cross-lagged design to examine the relative influence of genes and the environment on the developmental relations between language comprehension and reading comprehension. The present sample included 298 twin pairs (110 monozygotic and 188 same-sex dizygotic twin pairs) drawn from a large longitudinal twin study. Measures of language and reading comprehension were used to create latent factors of each construct. Data were collected during two separate in-home visits when twins were approximately 10 years old (mean = 9.81; SD = 0.98) and 12 years old (mean = 12.22; SD = 1.20).The cross-lagged model revealed significant bidirectionality effects: early language uniquely predicted later reading, and early reading uniquely predicted later language. Multivariate structural equation modeling was employed to investigate the genetic and environmental influences on the relations between language and reading comprehension over time. Consistent with previous research, the relation between language comprehension and reading comprehension demonstrated significant genetic and nonshared environmental effects at both time points. Language comprehension and reading comprehension both demonstrated significant stability over time, and genetic influences largely mediated these stability effects. Genetic influences shared by early language and reading comprehension explained much of the total variance in later language comprehension, and later reading comprehension. Although bidirectionality effects were observed, the etiological factors contributing to early reading comprehension did not uniquely contribute to later language, whereas the heritability of early language did uniquely contribute to later reading comprehension.These findings provide support for reading theories that emphasize the importance of language skills on the development of reading comprehension. This work also provides evidence for the notion of generalist genes that may influence overall language and reading skills, as well as language-specific genes that appear to make unique contributions to the development of reading ability. 2016 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1469114938 http://rave.ohiolink.edu/etdc/view?acc_num=osu1469114938 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection	NDLTD
language	English
sources	NDLTD
topic	Psychology
spellingShingle	Psychology Doran, Madeline Marie Etiological Influences on the Longitudinal Relations between Language and Reading Comprehension: A Genetically-Informative Cross-Lagged Study
author	Doran, Madeline Marie
author_facet	Doran, Madeline Marie
author_sort	Doran, Madeline Marie
title	Etiological Influences on the Longitudinal Relations between Language and Reading Comprehension: A Genetically-Informative Cross-Lagged Study
title_short	Etiological Influences on the Longitudinal Relations between Language and Reading Comprehension: A Genetically-Informative Cross-Lagged Study
title_full	Etiological Influences on the Longitudinal Relations between Language and Reading Comprehension: A Genetically-Informative Cross-Lagged Study
title_fullStr	Etiological Influences on the Longitudinal Relations between Language and Reading Comprehension: A Genetically-Informative Cross-Lagged Study
title_full_unstemmed	Etiological Influences on the Longitudinal Relations between Language and Reading Comprehension: A Genetically-Informative Cross-Lagged Study
title_sort	etiological influences on the longitudinal relations between language and reading comprehension: a genetically-informative cross-lagged study
publisher	The Ohio State University / OhioLINK
publishDate	2016
url	http://rave.ohiolink.edu/etdc/view?acc_num=osu1469114938
work_keys_str_mv	AT doranmadelinemarie etiologicalinfluencesonthelongitudinalrelationsbetweenlanguageandreadingcomprehensionageneticallyinformativecrosslaggedstudy
_version_	1719440498088738816

Etiological Influences on the Longitudinal Relations between Language and Reading Comprehension: A Genetically-Informative Cross-Lagged Study

Similar Items