OBJECTIVE To examine the stability and change in oppositional defiant disorder (ODD) with onset among preschool children in a pediatric sample. METHOD A total of 510 children aged 2-5 years were enrolled initially in 1989-1990 (mean age 3.42 years); 280 participated in five waves of data collection over a period of 48 to 72 months (mean wave 5 age, 8.35… (More)
Estimations of age from tooth formation standards for a large (n = 282) sample of subadult skeletal remains from a 19th century historic cemetery sample were analyzed. The standards of Moorrees et al. (1963a,b) for the permanent and deciduous teeth, and Anderson et al. (1976) for the formation of permanent dentition were employed in a variety of… (More)
In this paper various finite difference and finite element approximations to the linearized two-dimensional shallow-water equations are analyzed. This analysis complements previous results for the one-dimensional case.
This paper presents two new and novel methods to separate network connections between those that have originated behind the Tor network and those that have not. Our methods identify Tor inbound connections through the use of two distinct timing signatures, delay and round-trip time, that can be used to create effective metrics. In order to evaluate our… (More)
The aim of this study was to examine if an insecure coercive attachment pattern is associated with disruptive behavior in preschoolers, as well as to examine the concurrent and joint effects of attachment pattern, marital dissatisfaction, and ineffective parenting practices on disruptive behavior. Participants included 60 preschoolers and their mothers,… (More)