@article{ref1,
title="The incidence, prevalence, and severity of behavior disorders among preschool-aged children in day care",
journal="Journal of abnormal child psychology",
year="1981",
author="Crowther, J. H. and Bond, L. A. and Rolf, J. E.",
volume="9",
number="1",
pages="23-42",
abstract="This study examined the incidence, prevalence, and severity of 14 empirically derived externalizing (unsocialized aggressive) and internalizing (socially withdrawn) behaviors among 2- through 5-year-olds attending day care. Teacher ratings were obtained for 558 children in the incidence sample and 709 children in the expanded prevalence sample. Within each age, data were cross-tabulated by sex of child and severity of behavior, and chi-square analyses were computed. Results indicated that a substantial proportion of children in the normal pre-school population exhibit relatively high severities of selected externalizing and internalizing behaviors; this proportion varied with the age of the child and the behavior rated. Preschool-aged boys were consistently rated as demonstrating greater frequencies of externalizing behaviors than preschool-girls. The diagnostic and clinical implications of these findings are discussed.<p /><p>Language: en</p>",
language="en",
issn="0091-0627",
doi="",
url="http://dx.doi.org/"
}