The present study examined the joint development of substance use and externalizing problems in early and middle adolescence. First, it was tested whether the relevant groups found in previous studies i.e., those with an early onset, a late onset, and no onset or low levels of risk behavior could be identified, while using a developmental model of…

Farley's arousal/sensation-seeking model of delinquency was tested in part on a sample of adult male institutionalized addicts. The important implications of the environment for this biological approach to delinquency were discussed, and research directions suggested. (Author)

This article describes the average and group-based developmental trajectories of aggression, opposition, property violations, and status violations using parent reports of externalizing behaviors on a longitudinal multiple birth cohort study of 2,076 children aged 4 to 18 years. Trajectories were estimated from multilevel growth curve analyses and…

Psychometric properties of a laboratory paradigm for measuring stealing, property destruction, and cheating were explored, and the viability of the construct of covert antisocial behavior was studied in 98 children with attention-deficit hyperactivity disorder and 78 comparisons. Psychometric and ethical issues in assessment of covert behavior are…

In this article, the author explores the evolution of the use of the triangle as a communication tool for describing positive behavior support (PBS) systems. The conceptual framework for the triangle used for PBS is credited to Walker et al. In that seminal work, the a model of school-based prevention strategies for children displaying antisocial…