Methods: The preadolescent (7th grade) small group intervention is called REAL Groups and is a developmental adaptation of the original REAL Groups developed and tested with 5th graders (Marsiglia et al, 2010). Following a mutual aide approach small groups were formed at randomly selected school sites and 80 7th graders were referred by their classroom teachers to the small groups in their schools. Using Propensity Score Matching, students in the groups were compared to the same number of matched cases not participating in REAL Groups but receiving the classroom version of keepin'it REAL. Using Propensity Score Matching allowed for a less biased effect of participating in the REAL Groups.
Results: Initial findings demonstrate that the REAL Groups participants benefited more from the overall intervention than their counterparts receiving only the classroom-based prevention program. Students who participated in REAL Groups significantly decreased alcohol, cigarette, and marijuana use compared to students who did not participate in REAL Groups.
Conclusions: The extra dosage hypothesis as a response to higher levels of risk and vulnerability was confirmed. Providing a companion psychosocial small group intervention to a classroom based intervention is a useful tool to decrease risky behaviors in adolescents.