Heritability of antisocial behaviour at 9: Do callous-unemotional traits matter?
Viding, Essi ; Jones, Alice P. ; Frick, Paul Joseph ; Moffitt, T. E.
Viding, Essi
Jones, Alice P.
Frick, Paul Joseph
Moffitt, T. E.
Citations
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Abstract
A previous finding from our group indicated that teacher-rated antisocial behaviour (AB) among 7-year-olds is particularly heritable in the presence of callous-unemotional (CU) traits. Using a sample of 1865 same-sex twin pairs, we employed DeFries-Fulker extremes analysis to investigate whether teacher-rated AB with/without CU traits also shows aetiological differences among 9-year-olds. Furthermore, we assessed whether the differences in the magnitude of heritability would be evident even when hyperactive symptoms were controlled for in the statistical analysis. AB among 9-year-olds was more heritable with than without concomitant CU. The heritability difference was even more pronounced in magnitude when hyperactive symptoms were controlled. CU traits thus appear to index one valid way of sub-typing children with early-onset AB.
Keywords
Date
2008
Type
Journal article
Journal
Developmental Science
Book
Volume
Issue
Page Range
17-22
Article Number
ACU Department
Institute for Learning Sciences and Teacher Education (ILSTE)
Faculty of Education and Arts
Faculty of Education and Arts
