He has been conducting research for the last 30 years on the prevention of adolescent problem behaviors. (evolution-institute.org)
The aim of this study was to determine gender and age differences and agreement among the reports of adolescent problem behaviour by parents, teachers, and adolescents themselves. (link.springer.com)
Overall the present study highlights the need to look at the joint influence of neighborhood context and ethnicity on adolescent problem behavior. (link.springer.com)