ABSTRACT
This chapter considers some of what can already be evidenced in relation to individual therapies and presents some of the issues which face those providing psychologically based therapies in forensic settings. Decisions about the modality of delivery, and the therapeutic model to be employed have often been governed by practical choices and service needs rather than a detailed understanding of what is likely to be most effective for a given individual. Selecting which treatment to employ may not be of primary importance if the major factors determining treatment outcome are therapy-neutral common factors and the qualities and competencies of the therapist themselves. The research to determine the impact the therapist factors have on treatment gains need to be undertaken. Psychometric testing and important developments such as Offence Paralleling Behaviour can aid in estimating the impact of treatment on offending behaviour or other need even before the individual has returned to the community.
