The effectiveness of collaborative/therapeutic assessment for psychotherapy consultation: a pragmatic replicated single-case study.

This pragmatic study evaluated the effectiveness of a collaborative assessment intervention as an approach to midtherapy consultation, which has yet to be empirically tested. Ten adult participants in ongoing psychotherapy with a variety of presenting concerns, primarily consisting of general mood and adjustment issues, received a brief assessment-based intervention based on Finn's (2007) Therapeutic Assessment model. Following the collection of assessment questions and the administration of a multimethod assessment battery, clients and therapists participated in a joint feedback session with the assessor. Clients were then followed as their psychotherapy continued. The results of idiographic and aggregate analytic approaches revealed significant reductions in client-reported symptomatic distress, as evidenced by a medium effect size (d = -.50) and a significant change in the trajectory of distress. Client reports of the process of psychotherapy revealed a significant increase in the clients' ratings of the working alliance. The findings suggest that a midtherapy consultation using collaborative/therapeutic assessment methods is beneficial but that further rigorous investigation is needed.