Note also that although much of the work conducted within the last 10 years has been focused on peer influence within normative adolescent populations, there is evidence for iatrogenic effects within mental health group interventions for adolescents (Dodge, Dishion, & Lansford, 2006). Influence research should continue this examination of moderators that may be particularly relevant for socialization processes in at-risk or clinical populations, with an aim toward effectively alleviating harmful effects for particularly vulnerable youth.