January 2017 The Strengthening Families Program for Youth 10-14 (SFP10-14), an evidence-based intervention that reduces teen substance use, also reduced participants’ friends’ substance use. Two factors that accounted for the nonparticipants’ reductions were less time spent by nonparticipants with their participating friends without adult supervision and improvements in nonparticipants’ attitudes toward substance use. The findings suggest that researchers should consider the potential for diffusion of benefits in designing and implementing prevention programs.
March 2011 Reports on a school-based drug abuse prevention program showing that teens who participate in the program are less likely than their peers to engage in risky sexual behavior as young adults.
December 2012 Study findings indicate that children exposed to methamphetamine prenatally show more signs of increased emotionality, anxiety, and depression than nonexposed children at ages 3 and 5 years.