What was useful about that session? Clients' and therapists' comments after sessions in the UK Alcohol Treatment Trial (UKATT).

Aim: The aim of this study was to report and contrast the aspects of two therapies considered by clients and therapists to be most and least useful.

Method: In the UK Alcohol Treatment Trial (UKATT), 742 clients were treated by 49 therapists with up to three sessions of motivational enhancement therapy (MET) or up to eight sessions of social behaviour and network therapy (SBNT). After each treatment session, clients and therapists were asked to independently complete two sentences, one inviting a statement about the 'most useful' and the other about the 'least useful' thing that had happened during the session.