@article{ref1,
title="Recent approaches to the study of the preschool child. II. Some comments on the concept of "aggression."",
journal="Journal of consulting psychology",
year="1938",
author="Updegraff, R.",
volume="2",
number="6",
pages="187-189",
abstract="A review of certain published findings, indicating some of the questions raised in the study of aggression in the behavior of pre-school children. Studies have shown that age is a factor in the frequency of aggressive behavior. Sex differences are reported, and self-confidence appears to be positively related to ascendance. The authors cited have raised more problems than have been settled. (PsycINFO Database Record (c) 2012 APA, all rights reserved)<p /><p>Language: en</p>",
language="en",
issn="0095-8891",
doi="10.1037/h0056748",
url="http://dx.doi.org/10.1037/h0056748"
}