Aggressive, violent, and disruptive behaviour among Belize youth is disproportionately high. The present study evaluated a school-based positive youth development program (Positive Action) using a clustered RCT. The aim of the study sought to examine post-treatment positive youth development competencies (i.e. social-emotional character…

There are many situations where random assignment of participants to treatment and comparison conditions may be unethical or impractical. This article provides an overview of propensity score techniques that can be used for estimating treatment effects in nonrandomized quasi-experimental studies. After reviewing the logic of propensity score…

This article examines the individual components of bipolar disorder in children and the behaviors that can escalate as a result of misdiagnosis and treatment. The brain/behavior relationship in bipolar disorders can be affected by genetics, developmental failure, or environmental influences, which can cause an onset of dramatic mood swings and…

Objective: To investigate the family environments of children in a community sample with ADHD and co-occurring anxiety. Method: Family Environment Scale, Behavioral Assessment System for Children, and Structured Clinical Interview are administered to parents of children with ADHD with and without anxiety. Results: ADHD families are uniformly less…

Identifying patterns of victimization continuity and discontinuity over time can inform school-based efforts to prevent and intervene with peer victimization. We conducted a four-wave longitudinal study of students through their transition from middle to high school. Participants were 135 diverse students from Grade 8 to Grade 11 who completed…

Research has found strong linkages between adolescent substance use and attitudes toward school. Few studies of this relationship, however, consider the different dimensions of students' school attitudes, separating perceptions of the importance of school from the quality of students' affective experiences therein. Using a sample of 301 urban…