Children with autism spectrum disorder (ASD) with and without co-occurring schizophrenia spectrum traits (SST) were examined for differences in co-occurring psychiatric symptoms, background characteristics, and mental health risk factors. Participating mothers and teachers completed a DSM-IV-referenced rating scale and a background questionnaire…

Background: There are few evaluations of very early intervention for the prevention of internalising disorders and those that exist generally evaluate outcomes to a maximum of 12 months. The current study evaluated the very long term effects (11 years) of a brief internalising prevention program presented to parents of preschool aged children.…

This quasi-experimental exploratory study investigated whether a social-emotional learning program, implemented during a 1-year period, could lead to gains in social-emotional competencies and a reduction in internalizing and externalizing problems. Furthermore, it showed which pupils would benefit most from the program. The program was applied to…

In 1959, Campbell and Fiske introduced the use of multitrait-multimethod (MTMM) matrices in psychology, and for the past 4 decades confirmatory factor analysis (CFA) has commonly been used to analyze MTMM data. However, researchers do not always fit CFA models when MTMM data are available; when CFA modeling is used, multiple models are available…

This dissertation contains two studies, which are intended to expand our current knowledge about girls with ASD without intellectual disability. The first study examined sex-differences in ASD symptom endorsement and coexisting internalizing and externalizing behaviors. The second study explored the social behaviors of boys and girls with ASD at…

Traumatic childhood experiences have been found to predict later internalizing problems. This prospective longitudinal study investigated whether repeated and intentional harm doing by peers (peer victimization) in childhood predicts internalizing symptoms in early adolescence. 3,692 children from the Avon Longitudinal Study of Parents and…

A growing body of research suggesting a negative association between basal levels of cortisol and persistent antisocial behavior has emerged. The present study examined relations between awakening cortisol levels and antisocial trajectories from ages 5 to 15 years among individuals in the National Institute of Child Health and Human Development…

This study aimed to investigate the sensory processing (SP) dysfunction and emotional and behavioral problems in preschool children with autism and then examine the relationship between the SP dysfunction and emotional and behavioral problems. The parents of 112 children aged 48-84 months (67 with autism; 45 age-matched typically developing)…

Co-rumination, defined as repetitive, problem-focused talk explains higher levels of friendship quality in youth (Rose, 2002) and increased levels of anxiety/depression in females. Middle adolescents (N = 146) participated in a study of co-rumination, individual coping, externalizing/internalizing problems, and peer functioning. Consistent with…

Although Latino/as are the fastest growing segment of the U.S. student population, Latino/a youth face a number of educational hurdles, such as disproportionate school punishment. This topic is particularly relevant today in the midst of the current social, political, and economic debate over the influence of Latino/a immigration in the US school…

In early adolescence, attachment security reflects not only the quality of ongoing relationships with parents, but also how adolescents process social relationships with "others"--that is, their "social value orientation"--with possible implications for adolescents' risk-taking. In this study, a sample of Italian early…

Background: Physical activity and structural differences in the hippocampus have been linked to educational outcome. We investigated whether a curriculum-based physical activity intervention correlates positively with children's academic achievement, psychological well-being, health-related quality of life (HRQoL), fitness, and structural…

Learning-related behaviors are important for school success. Socioeconomic disadvantage confers risk for less adaptive learning-related behaviors at school entry, yet substantial variability in school readiness exists within socioeconomically disadvantaged populations. Investigation of neurophysiological systems associated with learning-related…

Our nation's schools should be safe havens for teaching and learning, free of crime and violence. Any instance of crime or violence at school not only affects the individuals involved, but also may disrupt the educational process and affect bystanders, the school itself, and the surrounding community (Brookmeyer, Fanti, and Henrich 2006;…

Many studies have been conducted on gender differences in intimate partner violence (IPV), producing inconsistent results. Some studies report that men were victimized by IPV as much as women were, whereas others find that IPV was predominantly perpetrated by men against women. The nature and context of IPV may be crucial to understanding gender…