Intervention: First Principles 309through Adolescence. Guilford Press, New York. pp. 196–206. (This careful,
classic study puts an end to any notion that commonsense interventions
are bound to do more good than harm: the young people getting the
relatively intensive intervention did notably worse.)
Nock M, Kazdin A (2005) Randomized controlled trial of a brief interven-
tion for increasing participation in parent management training.Journal
of Consulting and Clinical Psychology 73 , 872–879. (Shows that talking to
families for 5–15 minutes during the first, fifth, and seventh sessions
about the barriers to implementing treatment and how they might
overcome them led to greater adherence and attendance.)
Shirk S, Karver M. (2003) Prediction of treatment outcome from relation-
ship variables in child and adolescent therapy: A meta-analytic review.
Journal of Consulting and Clinical Psychology 71 , 452–464. (Shows that the
quality of the therapist-family alliance predicts on average 20% of the
treatment gain.)
Weisz JRet al. (2006) Evidence-based youth psychotherapies versus usual
clinical care: a meta-analysis of direct comparisons.American Psychologist
61 , 671–689.
Weisz J, Kazdin A. (2010)Evidence-based Psychotherapies for Children and
Adolescents, 2nd edn. Guilford Press, London. (Nice summaries of the
most effective therapies plus useful overviews of general issues.)