The study examines the agreement among raters on children's problematic behaviors. A multitrait-multimethod (MTMM) matrix was applied to a normative sample of elementary school-aged children (N = 841). The participants were rated by their physical educators, using the Motor Behavior Checklist for children (MBC; Efstratopoulou, Janssen, &…

We used data from a randomized clinical trial to examine the degree to which relationship quality predicted outcomes for aggressive children in two different mentoring programs. Data were available for 145 aggressive children in Grades 2 and 3. Children were blocked by school and randomly assigned to PrimeTime (n = 75) or Lunch Buddy (n = 70)…

Aim: It has been suggested that high levels of prenatal testosterone exposure are implied in the aetiology of attention-deficit-hyperactivity disorder (ADHD). This study examined the association between the ratio of the length of the second and fourth digits (2D:4D ratio), a marker of fetal testosterone exposure, and the presence of ADHD-related…

This study examined the prevalence and determinants of spanking of children at 3?years of age and the associations between spanking and externalizing behaviour and receptive verbal ability at age 5?years. Overall, we find maternal spanking rates of 55.2% and paternal rates of 43.2% at age 3?years. Mothers facing greater stress and those who…

This study explored the importance of using relevant measures when evaluating the effectiveness of early childhood interventions. Data from the federally-funded evaluation of the Comprehensive Child Development Program were used to examine whether the behavior measure, the Child Behavior Checklist (CBCL), was an appropriate tool for the diverse…

For clinically referred children with Autism Spectrum Disorder (ASD) or Attention Deficit/Hyperactivity Disorder (ADHD) several early indicators have been described. However, knowledge is lacking on early markers of less severe variants of ASD and ADHD from the general population. The aim of the present study is to identify early indicators of…

This study aims to understand if greater severity of maternal posttraumatic stress symptoms (PTSS), related to maternal report of interpersonal violence, mediates the effects of such violence on (a) child PTSS as well as on (b) child externalizing and internalizing symptoms. Study participants were mothers (N = 77) and children 18 to 48 months…

This study examined early elementary school children's trajectories of peer victimization with a sample of 218 boys and girls. Peer victimization was assessed (via peer report) in kindergarten and first, second, and fifth grades. Hierarchical linear modeling (HLM) was used to examine multiple types of relationships (mother-child, student-teacher,…

Tantrums, or emotional reactions that are out of proportion to a situation, appear to be a common childhood phenomenon--yet have drawn little research attention. This pilot study describes tantrum precipitants; their frequency, intensity, and duration; and parental responses in a small community sample (N = 33) of 3- to 5-year-olds. Tantrum…

Proximal environmental variables illustrate aspects of the environment that are experienced directly and specifically by the child. The current study examined the associations between three proximal environmental variables: (1) quality of the home environment, (2) regularity of family routines and (3) frequency of parenting daily hassles and…

Background: This study examines how and why children change in aggression and delinquency from age 6 to 15 years. Besides assessing the shape of the developmental trajectories of aggression and delinquency, we investigated whether child personality characteristics, parenting, and interactions between these two predict the development of…

The development of child anxiety and depressive symptoms from mean ages 5.3 to 9.3 years was examined in a community sample of 133 girls and 134 boys, using parent and teacher ratings. Reliable individual differences in anxiety and depressive symptoms at mean age 5.3 and in their change to mean age 9.3 were observed, with significant correlations…

The creation and cultivation of an imaginary companion is considered to be a healthy form of pretend play in early childhood, but there tends to be a less positive view of older children who have them. To test the extent that having an imaginary companion in middle school is associated with positive or negative outcomes, an ethnically diverse…

Background: A functional polymorphism in the promoter region of the monoamine oxidizing gene "monoamine oxidase A" ("MAOA") has been associated with behavioral sensitivity to adverse environmental conditions in multiple studies (e.g., Caspi et al. 2002; Kim-Cohen et al., 2006). The present study investigates the effects of…

This study describes a manual-based psychological intervention for adolescents diagnosed with Learning Disorders (LD), "I Can Succeed" (ICS), and reports on the feasibility of the treatment as an intervention to promote adaptive academic and emotional functioning. The intervention consisted of acute and follow-up phases, over 18 months.…