Writing and reading skills as assessed by teachers in 7-year olds: A behavioral genetic approach

TY - JOUR

T1 - Writing and reading skills as assessed by teachers in 7-year olds: A behavioral genetic approach

AU - Oliver, B R

AU - Dale, P S

AU - Plomin, R

PY - 2007/1

Y1 - 2007/1

N2 - A behavioral genetic analysis of general writing ability was conducted using teacher assessments based on UK National Curriculum criteria for a sample of 3296 same-sex pairs of 7-year-old twins. Writing was highly heritable within the normal range (0.66) and at the low extreme (0.70). Environmental influences were almost all non-shared, with shared environmental estimates negligible (0.07 normal range, 0.06 low extreme). Bivariate genetic analyses of teacher assessments of writing and reading indicated that 69% of the genetic influences on writing were in common with those on reading, and that the two skills shared all of their shared environmental influences. In contrast, non-shared environmental factors are largely specific, with 86% independent of those on reading. (C) 2006 Elsevier Inc. All rights reserved

AB - A behavioral genetic analysis of general writing ability was conducted using teacher assessments based on UK National Curriculum criteria for a sample of 3296 same-sex pairs of 7-year-old twins. Writing was highly heritable within the normal range (0.66) and at the low extreme (0.70). Environmental influences were almost all non-shared, with shared environmental estimates negligible (0.07 normal range, 0.06 low extreme). Bivariate genetic analyses of teacher assessments of writing and reading indicated that 69% of the genetic influences on writing were in common with those on reading, and that the two skills shared all of their shared environmental influences. In contrast, non-shared environmental factors are largely specific, with 86% independent of those on reading. (C) 2006 Elsevier Inc. All rights reserved

KW - Writing

KW - Literacy

KW - Teacher assessment

KW - Behavioral genetics

KW - Twins

U2 - 10.1016/j.cogdev.2006.07.003

DO - 10.1016/j.cogdev.2006.07.003

M3 - Article

VL - 22

SP - 77

EP - 95

JO - Cognitive Development

JF - Cognitive Development

IS - 1

ER -