Implementation studies are needed estimate penetration more precisely . second, adolescents who received BBN
versus control had greater benefit relative to PTSD and
depressive symptoms. This is encouraging, because most
adolescents had few symptoms at Baseline (I.e., means of
only 25 PTSD and 1.4 depressiv syinptoms), Which greatly
limited the potential to detect benefit. Research in shelters
and emergency settings soon after an event is needed to
assist in estimating the impact of this approach with adolescents who are at higher Ievel of risk for PTSD and
depression. Third, the low base rate for smoking and alcohol
use problenns produced too little power for analysis and
interpretation, but use of the modules was satisfactory and
suggests the need for further investiga tion.