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Effects of Genetic and Environmental Factors on Writing Development.

Title: The Effects of Genetic and Environmental Factors on Writing Development.
Name(s): Erbeli, Florina, author
Hart, Sara A, author
Kim, Young-Suk Grace, author
Taylor, Jeanette, author
Type of Resource: text
Genre: Journal Article
Date Issued: 2017-10-01
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Researchers have identified sources of individual differences in writing across beginning and developing writers. The aim of the present study was to further clarify the sources of this variability by investigating the extent to which there are differences in genetic and environmental factors underlying the associations between lexical diversity, syntactic knowledge, and semantic cohesion knowledge in relation to writing. Differences were examined across two developmental phases of writing: beginning (i.e., elementary school) and developing (i.e., middle school). Participants included 262 twin pairs (age = 10.88 years) in elementary school and 247 twin pairs (age = 13.21 years) in middle school. Twins were drawn from the Florida Twin Project on Reading, Behavior, and Environment. Biometric models were conducted separately for subgroups defined by phase of writing development. Results indicated significant etiological differences in writing components across the two phases, such that effects associated with genes and non-shared environment were greater while effects associated with shared environment were lower in developing writers as compared to beginning writers. Furthermore, results showed that child-specific environment was the largest contributor to individual differences in writing components and their covariation for both beginning and developing writers. These results imply that even direct instruction about writing in schools may be having different effects on children based on their unique experiences.
Identifier: FSU_pmch_29276362 (IID), 10.1016/j.lindif.2017.08.005 (DOI), PMC5739064 (PMCID), 29276362 (RID), 29276362 (EID)
Keywords: Developmental differences, Etiology, Twins, Writing
Grant Number: P50 HD052120
Publication Note: This NIH-funded author manuscript originally appeared in PubMed Central at
Persistent Link to This Record:
Host Institution: FSU
Is Part Of: Learning and individual differences.
Issue: vol. 59

Choose the citation style.
Erbeli, F., Hart, S. A., Kim, Y. -S. G., & Taylor, J. (2017). The Effects of Genetic and Environmental Factors on Writing Development. Learning And Individual Differences. Retrieved from