ERIC Number: EJ874124
Record Type: Journal
Publication Date: 2010-Jan
Abstractor: As Provided
Reference Count: N/A
Genetic Influences on Language, Reading, and Mathematics Skills in a National Sample: An Analysis Using the National Longitudinal Survey of Youth
Hart, Sara A.; Petrill, Stephen A.; Kamp Dush, Claire M.
Language, Speech, and Hearing Services in Schools, v41 n1 p118-128 Jan 2010
Purpose: The present study had two purposes: provide an illustration of use of the National Longitudinal Survey of Youth 1979 Children's (CNLSY; U.S. Department of Labor, 2009) database and use the database to seek convergent evidence regarding the magnitude and significance of genetic effects influencing low and typical performers on measures of language, reading, and mathematics. Methods: A kinship algorithm that assigned a degree of genetic relatedness to all available pairings was applied to the 1994 wave of the CNLSY sample. Four cognitive achievement outcomes related to language, reading, and mathematics were analyzed across the general sample as well as for children selected below the lowest 20th percentile. Results: The tests of receptive vocabulary, decoding, reading comprehension, and mathematics all suggested estimates of group heritability and full sample heritability of moderate effect sizes, and all estimates were statistically significant. Furthermore, all estimates were within confidence intervals of previously reported estimates from twin and adoption studies. Conclusion: The present study provides additional support for significant genetic effects across low and wide ranges of specific achievement. Moreover, this study supports that genetic influences on reading, language, and mathematics are generalizable beyond twin and adoption studies.
Descriptors: Reading Comprehension, Siblings, Intervals, Genetics, Effect Size, Databases, Mathematics Skills, Longitudinal Studies, Vocabulary Development, Adoption, Cognitive Processes, Evaluation Methods, Influences
American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail: firstname.lastname@example.org; Web site: http://lshss.asha.org/
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: National Longitudinal Survey of Youth