This study adds to the growing research on the use of BIs
for adolescents. Adolescents experiencing mild to moderate
drug abuse received either a two- or three-session schoolbased
intervention and were assessed for drug use outcomes
at 6-month follow-up. There are three major findings from
the study: (a) both active conditions showed significant
absolute and relative improvements across the range of
outcomes compared with the assessment-only group; (b) the
group that included a parent session (BI-AP) exhibited
greater and more consistent intervention effects compared
with the condition in which only the adolescent client
received services (BI-A); and (c) support for the mediating effects for problem solving (BI-A and BI-AP) and use of
additional services postintervention (BI-AP) were found.
Consistent with other evaluations of BIs for adolescents
(e.g., Grenard et al., 2006), this study supports the view that
this approach is an appropriate solution for mild to
moderate drug-abusing adolescents. In this light, BIs are
increasing in viability as an effective treatment solution
within the range of services for youth with problems
associated with drug involvement. This study showed that
either BI condition was associated with significant improvement
in all of our drug use outcome variables, which
included number of cannabis using days, number of alcohol
using days, and number of drug-related consequences.
Furthermore, the additional one session with the parent was
associated with enhanced outcome effects compared with
those youth who received just the two adolescent sessions.
Only one outcome variable, alcohol abstinence prior 90
days, showed better outcome for the BI-A group compared
with the BI-AP group. Nonetheless, our finding of better
outcomes with the adolescent–parent condition is consistent
with a large drug abuse treatment literature showing
relatively better outcomes when parents are involved in
the therapy compared with therapy involving only the
adolescent (see Lipsey et al., 2010; Rowe, 2010).
This study adds to the growing research on the use of BIs
for adolescents. Adolescents experiencing mild to moderate
drug abuse received either a two- or three-session schoolbased
intervention and were assessed for drug use outcomes
at 6-month follow-up. There are three major findings from
the study: (a) both active conditions showed significant
absolute and relative improvements across the range of
outcomes compared with the assessment-only group; (b) the
group that included a parent session (BI-AP) exhibited
greater and more consistent intervention effects compared
with the condition in which only the adolescent client
received services (BI-A); and (c) support for the mediating effects for problem solving (BI-A and BI-AP) and use of
additional services postintervention (BI-AP) were found.
Consistent with other evaluations of BIs for adolescents
(e.g., Grenard et al., 2006), this study supports the view that
this approach is an appropriate solution for mild to
moderate drug-abusing adolescents. In this light, BIs are
increasing in viability as an effective treatment solution
within the range of services for youth with problems
associated with drug involvement. This study showed that
either BI condition was associated with significant improvement
in all of our drug use outcome variables, which
included number of cannabis using days, number of alcohol
using days, and number of drug-related consequences.
Furthermore, the additional one session with the parent was
associated with enhanced outcome effects compared with
those youth who received just the two adolescent sessions.
Only one outcome variable, alcohol abstinence prior 90
days, showed better outcome for the BI-A group compared
with the BI-AP group. Nonetheless, our finding of better
outcomes with the adolescent–parent condition is consistent
with a large drug abuse treatment literature showing
relatively better outcomes when parents are involved in
the therapy compared with therapy involving only the
adolescent (see Lipsey et al., 2010; Rowe, 2010).
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