It was predicted that (a) each treatment would improve child functioning (reduce overall
deviance and aggressive, antisocial, and delinquent behavior, and increase prosocial competence);
and (b) PSST and PMT combined would lead to more marked, pervasive, and durable changes in
child functioning and greater changes in parent functioning (parental stress, depression, and overall
symptoms). Expectations were supported by results at posttreatment and 1 -year follow-up. PSST
and PMT combined led to more marked changes in child and parent functioning and placed a
greater proportion of youth within the range of nonclinic (normative) levels of functioning.