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Title: Precursors to aggression are evident by 6 months of age.
Authors: Hay, D. F.
Waters, C. S.
Perra, O.
Swift, N.
Kairis, V.
Phillips, R.
Jones, R.
Goodyer, I.
Harold, Gordon
Thapar, A.
van Goozen, S.
First Published: 25-Feb-2014
Publisher: Wiley for International Association of Bioethics
Citation: Developmental Science, 2014, 17 (3), pp. 471-480
Abstract: We tested the hypothesis that developmental precursors to aggression are apparent in infancy. Up to three informants rated 301 firstborn infants for early signs of anger, hitting and biting; 279 (93%) were assessed again as toddlers. Informants' ratings were validated by direct observation at both ages. The precursor behaviours were significantly associated with known risk factors for high levels of aggressiveness. Individual differences were stable from early infancy to the third year and predicted broader conduct problems. These findings suggest that some individuals set forth on the trajectory to high levels of aggression by 6 months of age. The findings have implications for developmental studies of aggression, clinical prevention and intervention strategies, and theoretical considerations regarding the detection of precursors in different domains of development.
DOI Link: 10.1111/desc.12133
ISSN: 1363-755X
eISSN: 1467-7687
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: © 2014 The Authors. Developmental Science Published by John Wiley & Sons Ltd.This is an open access article under the terms of the Creative Commons Attribution License, which permits use,distribution and reproduction in any medium, provided the original work is properly cited.
Appears in Collections:Published Articles, College of Medicine, Biological Sciences and Psychology

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