This study investigated the influence of therapist skill on the effectiveness of a manualized parenting program for child antisocial behavior. A reliable instrument with 10 scales was developed to measure skill. 15 parenting groups were observed, from a controlled trial involving 90 clinically referred, disadvantaged children aged 3-8 with severe antisocial behavior. Child outcome was assessed by interview. The skill level of therapists running the groups was found to be a significant predictor of effectiveness.
Bibliography: Scott, S., Carby, A., and Rendu, A. 2008. King?s College London, Institute of Psychiatry. University College London.