Underage drinking is a major problem in the United States, leading to increased morbidity and mortality. About 43,000 deaths a year result from binge drinking in youths at a cost of $24 billion in 2010 to the U.S. economy. The purpose of this quantitative dissertation was to examine the predictors of binge drinking in high school youths in a…

Experiencing an early pubertal transition has been shown to increase the risk for internalizing and externalizing outcomes among girls. It is less clear how the expectations of other individuals can be critical determinants of vulnerability for early developers. This study used an experimental design to examine whether the expectations of teachers…

Although bullying continues to be a growing public health concern in schools across the United States, there are considerable gaps in the American understanding of effective prevention approaches for addressing this seemingly intractable issue. This article applies a public health approach to addressing bullying through the multitiered Positive…

Despite--or perhaps due to--the lack of consensus on its definition, there is abundant interest in and research on school climate. Researchers have determined that improving school climate is one way to increase academic achievement, school safety, school completion, teacher retention, healthy social interactions, and student well-being (Cohen,…

The focus of this study was to prospectively investigate the effect of aggressive behavior and of classroom behavioral context, as measured in the fall of 1st grade, on the timing of 1st school removal across Grades 1-7 in a sample of predominately urban minority youths from Baltimore, Maryland. Using a multilevel discrete-time survival framework,…

This study examined the relation between implementation of Positive Behavior Intervention and Supports (PBIS) and academic achievement in middle school math as measured by the Maryland State Assessment (MSA). In particular, the correlation of academic achievement in mathematics, grouped by PBIS implementation status to race, socioeconomic status…

This study of graduation outcomes in Baltimore uses multivariate analysis of longitudinal student cohort data to examine the impact of factors identified in previous research as early warning indicators of a dropout outcome. Student cohort files were constructed from longitudinal administrative data (following all first-time 2004-2005 and…

The notion that vitamins, minerals, and other "supplemental" nutrients profoundly change behavior, mood, and intellect has origins as old as recorded history. Research has indeed suggested connections between nutrient deficiencies and behavior problems, but correlations are not the same as causality. This "Abell Report" is an…

Two studies examined the validity and factor structure of the Teacher Observation of Classroom Adaptation-Checklist, an instrument used to evaluate school-based programs. The checklist is a cost-effective alternative to the original interview format, and the factor structure is consistent across gender, race, age, and time of administration.…

The present study used an ecological framework to examine the relationships among adolescents' perceptions of school climate, social competence, and behavioral and psychological adjustment in the middle school years. This study improved upon prior studies by using "structural equation modeling" to investigate the hypothesized mediating…