@article{ref1,
title="The early childhood aggression curve: development of physical aggression in 10- to 50-month-old children",
journal="Child development",
year="2006",
author="Alink, Lenneke R. A. and Mesman, Judi and van Zeijl, Jantien and Stolk, Mirjam N. and Juffer, Femmie and Koot, Hans M. and Bakermans-Kranenburg, Marian J. and van Ijzendoorn, Marinus H.",
volume="77",
number="4",
pages="954-966",
abstract="This study examines the prevalence, stability, and development of physical aggression, as reported by mothers and fathers, in a sample of children initially recruited at 12, 24, and 36 months (N=2,253) and in a subsample followed up 1 year later (n=271) in a cross-sequential design. Physical aggression occurred in 12-month-olds, but significantly more often in 24- and 36-month-olds. The rates of physically aggressive behaviors increased in the 2nd year of life, and declined from the 3rd birthday onward. Stabilities were moderate for 12-month-olds and high for 24- and 36-month-olds. At the ages of 24 and 36 months, boys were more aggressive than girls. The results confirm and extend R.E. Tremblay's (2004) hypothesis about the early development of physical aggression.<p /> <p>Language: en</p>",
language="en",
issn="0009-3920",
doi="10.1111/j.1467-8624.2006.00912.x",
url="http://dx.doi.org/10.1111/j.1467-8624.2006.00912.x"
}