The scientist-practitioner model in clinical psychology is critically examined and illustrated by reference to applied research using archival data as well as survey, single-case and group design methodology. A definition of the scientist-practitioner as one who consumes and utilises research findings, and who may also undertake research is espoused and defended. It is argued that the scientist-practitioner model is an appropriate one for clinical training since, in providing practitioners with a scientific mentality, it allows for psychology's unique contribution. The realisation of the scientist-practitioner ideal, however, is dependent on psychologists embracing a wide range of alternative research methods, on post-graduate employment settings that support and internalise the model, and on a recognition by researchers that they have a responsibility for disseminating their findings through effective communication channels.