Interesting Tidbit from the study:
An important secondary finding is that very few adolescents decline in functioning over the
course of treatment. This finding is significant when considered in light of research that has
raised the possibility that group-based adolescent treatment can lead to deterioration, in certain
instances. Specifically, some research has found that association with deviant peers in therapy
may increase problematic behaviors, such as externalizing behavior and substance use (Dishion,
McCord, & Poulin, 1999)